/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_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:47:07,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:47:07,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:47:07,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:47:07,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:47:07,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:47:07,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:47:07,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:47:07,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:47:07,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:47:07,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:47:07,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:47:07,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:47:07,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:47:07,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:47:07,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:47:07,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:47:07,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:47:07,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:47:07,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:47:07,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:47:07,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:47:07,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:47:07,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:47:07,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:47:07,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:47:07,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:47:07,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:47:07,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:47:07,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:47:07,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:47:07,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:47:07,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:47:07,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:47:07,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:47:07,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:47:07,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:47:07,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:47:07,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:47:07,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:47:07,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:47:07,689 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 19:47:07,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:47:07,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:47:07,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:47:07,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:47:07,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:47:07,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:47:07,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:47:07,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:47:07,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:47:07,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:47:07,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:47:07,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:47:07,706 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:47:07,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:47:07,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:47:07,707 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:47:07,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:47:07,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:47:07,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:47:07,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:47:07,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:47:07,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:47:07,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:47:08,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:47:08,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:47:08,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:47:08,150 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:47:08,151 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:47:08,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-10-23 19:47:08,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cbebbecb/12f105cff30a4f4d9ab24529bf16b88d/FLAG6d68676f7 [2020-10-23 19:47:09,006 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:47:09,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-10-23 19:47:09,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cbebbecb/12f105cff30a4f4d9ab24529bf16b88d/FLAG6d68676f7 [2020-10-23 19:47:09,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cbebbecb/12f105cff30a4f4d9ab24529bf16b88d [2020-10-23 19:47:09,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:47:09,287 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:47:09,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:47:09,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:47:09,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:47:09,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:47:09" (1/1) ... [2020-10-23 19:47:09,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c75c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:09, skipping insertion in model container [2020-10-23 19:47:09,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:47:09" (1/1) ... [2020-10-23 19:47:09,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:47:09,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:47:09,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:47:09,928 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:47:10,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:47:10,041 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:47:10,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10 WrapperNode [2020-10-23 19:47:10,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:47:10,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:47:10,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:47:10,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:47:10,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10" (1/1) ... [2020-10-23 19:47:10,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10" (1/1) ... [2020-10-23 19:47:10,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10" (1/1) ... [2020-10-23 19:47:10,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10" (1/1) ... [2020-10-23 19:47:10,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10" (1/1) ... [2020-10-23 19:47:10,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10" (1/1) ... [2020-10-23 19:47:10,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10" (1/1) ... [2020-10-23 19:47:10,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:47:10,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:47:10,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:47:10,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:47:10,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10" (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 19:47:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:47:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:47:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:47:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:47:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:47:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:47:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:47:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:47:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:47:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:47:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:47:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:47:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:47:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:47:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:47:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:47:10,264 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:47:10,264 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:47:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:47:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:47:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:47:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:47:10,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:47:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:47:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:47:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:47:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:47:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:47:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:47:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:47:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:47:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:47:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:47:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:47:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 19:47:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:47:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:47:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:47:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:47:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:47:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:47:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:47:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:47:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:47:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:47:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:47:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:47:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:47:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:47:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:47:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:47:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:47:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:47:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:47:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:47:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:47:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:47:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:47:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 19:47:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:47:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:47:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:47:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:47:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:47:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:47:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:47:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:47:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:47:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:47:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:47:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:47:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:47:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:47:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:47:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:47:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:47:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:47:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:47:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:47:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:47:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:47:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:47:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:47:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:47:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:47:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:47:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:47:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:47:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:47:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:47:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:47:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:47:10,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:47:10,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:47:11,788 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:47:11,788 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:47:11,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:47:11 BoogieIcfgContainer [2020-10-23 19:47:11,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:47:11,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:47:11,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:47:11,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:47:11,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:47:09" (1/3) ... [2020-10-23 19:47:11,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605884f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:47:11, skipping insertion in model container [2020-10-23 19:47:11,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:47:10" (2/3) ... [2020-10-23 19:47:11,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605884f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:47:11, skipping insertion in model container [2020-10-23 19:47:11,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:47:11" (3/3) ... [2020-10-23 19:47:11,802 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-10-23 19:47:11,815 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:47:11,821 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:47:11,834 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:47:11,860 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:47:11,860 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:47:11,861 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:47:11,861 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:47:11,861 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:47:11,861 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:47:11,861 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:47:11,861 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:47:11,884 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-10-23 19:47:11,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 19:47:11,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:47:11,905 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] [2020-10-23 19:47:11,905 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 19:47:11,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:47:11,912 INFO L82 PathProgramCache]: Analyzing trace with hash 201630041, now seen corresponding path program 1 times [2020-10-23 19:47:11,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:47:11,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110091236] [2020-10-23 19:47:11,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:47:12,005 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:47:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:12,861 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:47:12,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:47:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:13,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:47:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:13,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:47:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:13,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:47:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:13,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:47:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:13,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:47:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:13,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:47:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:13,089 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 19:47:13,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110091236] [2020-10-23 19:47:13,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:47:13,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:47:13,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122940945] [2020-10-23 19:47:13,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:47:13,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:47:13,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:47:13,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:47:13,116 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2020-10-23 19:47:14,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:47:14,795 INFO L93 Difference]: Finished difference Result 458 states and 545 transitions. [2020-10-23 19:47:14,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:47:14,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 19:47:14,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:47:14,814 INFO L225 Difference]: With dead ends: 458 [2020-10-23 19:47:14,814 INFO L226 Difference]: Without dead ends: 288 [2020-10-23 19:47:14,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:47:14,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-23 19:47:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 246. [2020-10-23 19:47:14,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-23 19:47:14,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 265 transitions. [2020-10-23 19:47:14,970 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 265 transitions. Word has length 148 [2020-10-23 19:47:14,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:47:14,972 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 265 transitions. [2020-10-23 19:47:14,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:47:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 265 transitions. [2020-10-23 19:47:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 19:47:14,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:47:14,977 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] [2020-10-23 19:47:14,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:47:14,978 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 19:47:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:47:14,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1206683557, now seen corresponding path program 1 times [2020-10-23 19:47:14,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:47:14,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030469747] [2020-10-23 19:47:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:47:14,984 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:47:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:15,446 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:47:15,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:47:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:15,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:47:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:15,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:47:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:15,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:47:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:15,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:47:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:15,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:47:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:15,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:47:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:15,574 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 19:47:15,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030469747] [2020-10-23 19:47:15,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:47:15,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:47:15,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53977472] [2020-10-23 19:47:15,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:47:15,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:47:15,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:47:15,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:47:15,579 INFO L87 Difference]: Start difference. First operand 246 states and 265 transitions. Second operand 4 states. [2020-10-23 19:47:16,454 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:17,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:47:17,522 INFO L93 Difference]: Finished difference Result 359 states and 402 transitions. [2020-10-23 19:47:17,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:47:17,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 19:47:17,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:47:17,542 INFO L225 Difference]: With dead ends: 359 [2020-10-23 19:47:17,542 INFO L226 Difference]: Without dead ends: 271 [2020-10-23 19:47:17,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:47:17,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-23 19:47:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 236. [2020-10-23 19:47:17,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-23 19:47:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 252 transitions. [2020-10-23 19:47:17,673 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 252 transitions. Word has length 149 [2020-10-23 19:47:17,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:47:17,676 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 252 transitions. [2020-10-23 19:47:17,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:47:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 252 transitions. [2020-10-23 19:47:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 19:47:17,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:47:17,685 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] [2020-10-23 19:47:17,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:47:17,686 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 19:47:17,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:47:17,686 INFO L82 PathProgramCache]: Analyzing trace with hash 135240494, now seen corresponding path program 1 times [2020-10-23 19:47:17,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:47:17,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248339233] [2020-10-23 19:47:17,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:47:17,690 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:47:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:18,371 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:47:18,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:47:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:18,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:47:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:18,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:47:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:18,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:47:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:18,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:47:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:18,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:47:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:18,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:47:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:18,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:47:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:18,565 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 19:47:18,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248339233] [2020-10-23 19:47:18,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:47:18,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:47:18,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401648781] [2020-10-23 19:47:18,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:47:18,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:47:18,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:47:18,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:47:18,568 INFO L87 Difference]: Start difference. First operand 236 states and 252 transitions. Second operand 10 states. [2020-10-23 19:47:19,290 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:47:19,793 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:47:20,209 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:47:20,622 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:21,053 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:47:21,440 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:22,575 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:47:24,970 INFO L93 Difference]: Finished difference Result 630 states and 731 transitions. [2020-10-23 19:47:24,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:47:24,973 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 19:47:24,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:47:24,980 INFO L225 Difference]: With dead ends: 630 [2020-10-23 19:47:24,981 INFO L226 Difference]: Without dead ends: 509 [2020-10-23 19:47:24,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:47:24,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-10-23 19:47:25,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 404. [2020-10-23 19:47:25,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-10-23 19:47:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 446 transitions. [2020-10-23 19:47:25,226 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 446 transitions. Word has length 162 [2020-10-23 19:47:25,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:47:25,227 INFO L481 AbstractCegarLoop]: Abstraction has 404 states and 446 transitions. [2020-10-23 19:47:25,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:47:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 446 transitions. [2020-10-23 19:47:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 19:47:25,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:47:25,231 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] [2020-10-23 19:47:25,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:47:25,231 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 19:47:25,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:47:25,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1048228152, now seen corresponding path program 1 times [2020-10-23 19:47:25,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:47:25,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060811026] [2020-10-23 19:47:25,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:47:25,239 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:47:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:25,652 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:47:25,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:47:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:25,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:47:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:25,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:47:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:25,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:47:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:25,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:47:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:25,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:47:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:25,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:47:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:25,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:47:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:25,812 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 19:47:25,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060811026] [2020-10-23 19:47:25,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:47:25,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:47:25,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662991152] [2020-10-23 19:47:25,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:47:25,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:47:25,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:47:25,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:47:25,815 INFO L87 Difference]: Start difference. First operand 404 states and 446 transitions. Second operand 9 states. [2020-10-23 19:47:26,464 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:47:28,238 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:28,629 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:47:29,086 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:29,491 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:47:29,883 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:47:30,240 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:30,611 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:31,169 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:32,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:47:32,330 INFO L93 Difference]: Finished difference Result 1091 states and 1303 transitions. [2020-10-23 19:47:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:47:32,331 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-10-23 19:47:32,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:47:32,339 INFO L225 Difference]: With dead ends: 1091 [2020-10-23 19:47:32,339 INFO L226 Difference]: Without dead ends: 802 [2020-10-23 19:47:32,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:47:32,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2020-10-23 19:47:32,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 653. [2020-10-23 19:47:32,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-10-23 19:47:32,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 732 transitions. [2020-10-23 19:47:32,653 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 732 transitions. Word has length 167 [2020-10-23 19:47:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:47:32,654 INFO L481 AbstractCegarLoop]: Abstraction has 653 states and 732 transitions. [2020-10-23 19:47:32,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:47:32,654 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 732 transitions. [2020-10-23 19:47:32,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 19:47:32,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:47:32,658 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] [2020-10-23 19:47:32,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:47:32,659 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 19:47:32,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:47:32,659 INFO L82 PathProgramCache]: Analyzing trace with hash -437705597, now seen corresponding path program 1 times [2020-10-23 19:47:32,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:47:32,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584347842] [2020-10-23 19:47:32,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:47:32,663 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:47:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,096 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:47:33,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:47:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:47:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:47:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:47:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:47:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:47:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 19:47:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:47:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 19:47:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:33,283 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 19:47:33,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584347842] [2020-10-23 19:47:33,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:47:33,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:47:33,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919965406] [2020-10-23 19:47:33,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:47:33,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:47:33,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:47:33,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:47:33,286 INFO L87 Difference]: Start difference. First operand 653 states and 732 transitions. Second operand 10 states. [2020-10-23 19:47:34,040 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:47:35,790 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:36,212 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:47:36,649 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:37,097 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:47:37,497 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:38,332 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:47:38,734 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:39,247 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:40,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:47:40,467 INFO L93 Difference]: Finished difference Result 1726 states and 2100 transitions. [2020-10-23 19:47:40,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:47:40,470 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-10-23 19:47:40,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:47:40,479 INFO L225 Difference]: With dead ends: 1726 [2020-10-23 19:47:40,479 INFO L226 Difference]: Without dead ends: 1188 [2020-10-23 19:47:40,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 19:47:40,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2020-10-23 19:47:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 943. [2020-10-23 19:47:40,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-10-23 19:47:40,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1079 transitions. [2020-10-23 19:47:40,902 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1079 transitions. Word has length 172 [2020-10-23 19:47:40,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:47:40,903 INFO L481 AbstractCegarLoop]: Abstraction has 943 states and 1079 transitions. [2020-10-23 19:47:40,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:47:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1079 transitions. [2020-10-23 19:47:40,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-23 19:47:40,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:47:40,908 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] [2020-10-23 19:47:40,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:47:40,908 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 19:47:40,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:47:40,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1498653855, now seen corresponding path program 1 times [2020-10-23 19:47:40,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:47:40,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060258922] [2020-10-23 19:47:40,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:47:40,912 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:47:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,309 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:47:41,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:47:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:47:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:47:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:47:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:47:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:47:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:47:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:47:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:47:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:47:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:47:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 19:47:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:47:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:41,580 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 19:47:41,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060258922] [2020-10-23 19:47:41,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:47:41,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:47:41,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667616856] [2020-10-23 19:47:41,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:47:41,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:47:41,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:47:41,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:47:41,582 INFO L87 Difference]: Start difference. First operand 943 states and 1079 transitions. Second operand 14 states. [2020-10-23 19:47:42,354 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:42,725 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:47:43,112 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:43,471 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:47:43,827 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:45,060 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:45,431 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:47:45,832 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:46,249 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:47:46,624 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:49,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:47:49,184 INFO L93 Difference]: Finished difference Result 2387 states and 3047 transitions. [2020-10-23 19:47:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 19:47:49,185 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 200 [2020-10-23 19:47:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:47:49,200 INFO L225 Difference]: With dead ends: 2387 [2020-10-23 19:47:49,200 INFO L226 Difference]: Without dead ends: 1559 [2020-10-23 19:47:49,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 19:47:49,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2020-10-23 19:47:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 973. [2020-10-23 19:47:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2020-10-23 19:47:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1109 transitions. [2020-10-23 19:47:49,700 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1109 transitions. Word has length 200 [2020-10-23 19:47:49,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:47:49,701 INFO L481 AbstractCegarLoop]: Abstraction has 973 states and 1109 transitions. [2020-10-23 19:47:49,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:47:49,701 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1109 transitions. [2020-10-23 19:47:49,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-23 19:47:49,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:47:49,706 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] [2020-10-23 19:47:49,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:47:49,706 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 19:47:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:47:49,707 INFO L82 PathProgramCache]: Analyzing trace with hash -358860031, now seen corresponding path program 1 times [2020-10-23 19:47:49,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:47:49,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080030325] [2020-10-23 19:47:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:47:49,710 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:47:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,097 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:47:50,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:47:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:47:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:47:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:47:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:47:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:47:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:47:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:47:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:47:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:47:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:47:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 19:47:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:47:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:50,291 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 19:47:50,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080030325] [2020-10-23 19:47:50,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:47:50,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:47:50,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629041751] [2020-10-23 19:47:50,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:47:50,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:47:50,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:47:50,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:47:50,294 INFO L87 Difference]: Start difference. First operand 973 states and 1109 transitions. Second operand 11 states. [2020-10-23 19:47:51,986 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:47:52,377 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:47:52,789 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:47:53,192 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:53,598 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:47:53,968 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:47:56,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:47:56,003 INFO L93 Difference]: Finished difference Result 2429 states and 3030 transitions. [2020-10-23 19:47:56,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 19:47:56,004 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2020-10-23 19:47:56,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:47:56,014 INFO L225 Difference]: With dead ends: 2429 [2020-10-23 19:47:56,015 INFO L226 Difference]: Without dead ends: 1571 [2020-10-23 19:47:56,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:47:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2020-10-23 19:47:56,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1005. [2020-10-23 19:47:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2020-10-23 19:47:56,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1141 transitions. [2020-10-23 19:47:56,484 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1141 transitions. Word has length 200 [2020-10-23 19:47:56,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:47:56,485 INFO L481 AbstractCegarLoop]: Abstraction has 1005 states and 1141 transitions. [2020-10-23 19:47:56,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:47:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1141 transitions. [2020-10-23 19:47:56,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-23 19:47:56,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:47:56,491 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] [2020-10-23 19:47:56,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:47:56,491 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 19:47:56,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:47:56,492 INFO L82 PathProgramCache]: Analyzing trace with hash 665190750, now seen corresponding path program 1 times [2020-10-23 19:47:56,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:47:56,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833216793] [2020-10-23 19:47:56,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:47:56,495 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:47:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,866 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:47:56,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:47:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:47:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:47:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:47:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:47:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:47:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:47:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:47:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:47:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:47:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:47:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 19:47:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:56,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:47:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:47:57,036 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 19:47:57,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833216793] [2020-10-23 19:47:57,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:47:57,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 19:47:57,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522200383] [2020-10-23 19:47:57,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 19:47:57,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:47:57,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 19:47:57,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 19:47:57,039 INFO L87 Difference]: Start difference. First operand 1005 states and 1141 transitions. Second operand 8 states. [2020-10-23 19:47:57,722 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:47:58,515 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:48:03,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:48:03,407 INFO L93 Difference]: Finished difference Result 3935 states and 5024 transitions. [2020-10-23 19:48:03,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 19:48:03,407 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-10-23 19:48:03,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:48:03,426 INFO L225 Difference]: With dead ends: 3935 [2020-10-23 19:48:03,426 INFO L226 Difference]: Without dead ends: 3045 [2020-10-23 19:48:03,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-10-23 19:48:03,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2020-10-23 19:48:04,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 2145. [2020-10-23 19:48:04,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2020-10-23 19:48:04,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2469 transitions. [2020-10-23 19:48:04,371 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2469 transitions. Word has length 200 [2020-10-23 19:48:04,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:48:04,371 INFO L481 AbstractCegarLoop]: Abstraction has 2145 states and 2469 transitions. [2020-10-23 19:48:04,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 19:48:04,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2469 transitions. [2020-10-23 19:48:04,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-23 19:48:04,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:48:04,376 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 19:48:04,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:48:04,378 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 19:48:04,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:48:04,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1804660302, now seen corresponding path program 1 times [2020-10-23 19:48:04,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:48:04,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183313995] [2020-10-23 19:48:04,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:48:04,382 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:48:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:48:04,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:48:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:48:04,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:48:04,761 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:48:04,761 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:48:04,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:48:04,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:48:04 BoogieIcfgContainer [2020-10-23 19:48:04,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:48:04,801 INFO L168 Benchmark]: Toolchain (without parser) took 55518.87 ms. Allocated memory was 152.0 MB in the beginning and 834.7 MB in the end (delta: 682.6 MB). Free memory was 127.3 MB in the beginning and 707.3 MB in the end (delta: -580.0 MB). Peak memory consumption was 103.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:48:04,808 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 152.0 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:48:04,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.86 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 106.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:48:04,809 INFO L168 Benchmark]: Boogie Preprocessor took 115.34 ms. Allocated memory is still 152.0 MB. Free memory was 106.1 MB in the beginning and 102.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:48:04,810 INFO L168 Benchmark]: RCFGBuilder took 1632.15 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 102.2 MB in the beginning and 130.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:48:04,810 INFO L168 Benchmark]: TraceAbstraction took 53004.58 ms. Allocated memory was 182.5 MB in the beginning and 834.7 MB in the end (delta: 652.2 MB). Free memory was 129.9 MB in the beginning and 707.3 MB in the end (delta: -577.4 MB). Peak memory consumption was 74.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:48:04,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 152.0 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 751.86 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 106.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.34 ms. Allocated memory is still 152.0 MB. Free memory was 106.1 MB in the beginning and 102.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1632.15 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 102.2 MB in the beginning and 130.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 53004.58 ms. Allocated memory was 182.5 MB in the beginning and 834.7 MB in the end (delta: 652.2 MB). Free memory was 129.9 MB in the beginning and 707.3 MB in the end (delta: -577.4 MB). Peak memory consumption was 74.8 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: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L241] int waterLevel = 1; [L242] int methaneLevelCritical = 0; [L612] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L835] int cleanupTimeShifts = 4; [L908] int retValue_acc ; [L909] int tmp ; [L913] FCALL select_helpers() [L914] FCALL select_features() [L915] CALL, EXPR valid_product() [L434] int retValue_acc ; [L437] retValue_acc = 1 [L438] return (retValue_acc); [L915] RET, EXPR valid_product() [L915] tmp = valid_product() [L917] COND TRUE \read(tmp) [L919] FCALL setup() [L920] CALL runTest() [L902] CALL test() [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 [L346] COND TRUE 1 [L348] COND TRUE splverifierCounter < 4 [L354] tmp = __VERIFIER_nondet_int() [L356] COND TRUE \read(tmp) [L358] CALL waterRise() [L259] COND TRUE waterLevel < 2 [L260] waterLevel = waterLevel + 1 [L358] RET waterRise() [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___0) [L368] CALL changeMethaneLevel() [L271] COND FALSE !(\read(methaneLevelCritical)) [L274] methaneLevelCritical = 1 [L368] RET changeMethaneLevel() [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L378] CALL startSystem() [L233] systemActive = 1 [L378] RET startSystem() [L393] CALL timeShift() [L70] COND FALSE !(\read(pumpRunning)) [L77] COND TRUE \read(systemActive) [L79] CALL processEnvironment() [L99] int tmp ; [L102] COND TRUE ! pumpRunning [L104] CALL, EXPR isHighWaterLevel() [L196] int retValue_acc ; [L197] int tmp ; [L198] int tmp___0 ; [L202] CALL, EXPR isHighWaterSensorDry() [L321] int retValue_acc ; [L324] COND FALSE !(waterLevel < 2) [L328] retValue_acc = 0 [L329] return (retValue_acc); [L202] RET, EXPR isHighWaterSensorDry() [L202] tmp = isHighWaterSensorDry() [L204] COND FALSE !(\read(tmp)) [L207] tmp___0 = 1 [L209] retValue_acc = tmp___0 [L210] return (retValue_acc); [L104] RET, EXPR isHighWaterLevel() [L104] tmp = isHighWaterLevel() [L106] COND TRUE \read(tmp) [L108] CALL activatePump() [L127] pumpRunning = 1 [L108] RET activatePump() [L79] RET processEnvironment() [L85] CALL __utac_acc__Specification1_spec__1() [L810] int tmp ; [L811] int tmp___0 ; [L815] CALL, EXPR isMethaneLevelCritical() [L280] int retValue_acc ; [L283] retValue_acc = methaneLevelCritical [L284] return (retValue_acc); [L815] RET, EXPR isMethaneLevelCritical() [L815] tmp = isMethaneLevelCritical() [L817] COND TRUE \read(tmp) [L819] CALL, EXPR isPumpRunning() [L151] int retValue_acc ; [L154] retValue_acc = pumpRunning [L155] return (retValue_acc); [L819] RET, EXPR isPumpRunning() [L819] tmp___0 = isPumpRunning() [L821] COND TRUE \read(tmp___0) [L823] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product36.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 629 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 52.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 43.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1917 SDtfs, 4141 SDslu, 4360 SDs, 0 SdLazy, 8297 SolverSat, 1301 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 195 SyntacticMatches, 2 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 19.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2145occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2628 StatesRemovedByMinimization, 8 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...