/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 18:52:07,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 18:52:07,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 18:52:07,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 18:52:07,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 18:52:07,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 18:52:07,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 18:52:07,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 18:52:07,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 18:52:07,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 18:52:07,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 18:52:07,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 18:52:07,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 18:52:07,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 18:52:07,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 18:52:07,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 18:52:07,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 18:52:07,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 18:52:07,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 18:52:07,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 18:52:07,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 18:52:07,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 18:52:07,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 18:52:07,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 18:52:07,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 18:52:07,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 18:52:07,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 18:52:07,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 18:52:07,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 18:52:07,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 18:52:07,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 18:52:07,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 18:52:07,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 18:52:07,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 18:52:07,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 18:52:07,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 18:52:07,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 18:52:07,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 18:52:07,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 18:52:07,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 18:52:07,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 18:52:07,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 18:52:07,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 18:52:07,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 18:52:07,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 18:52:07,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 18:52:07,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 18:52:07,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 18:52:07,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 18:52:07,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 18:52:07,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 18:52:07,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 18:52:07,883 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 18:52:07,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 18:52:07,883 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 18:52:07,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 18:52:07,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 18:52:07,885 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 18:52:07,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 18:52:07,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 18:52:07,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 18:52:07,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 18:52:07,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 18:52:07,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 18:52:07,887 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 18:52:08,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 18:52:08,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 18:52:08,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 18:52:08,327 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 18:52:08,330 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 18:52:08,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2021-02-21 18:52:08,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d19710b/c3e367eea26a45e1a49d9c0b5c0b44aa/FLAGe1c3be770 [2021-02-21 18:52:09,104 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 18:52:09,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2021-02-21 18:52:09,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d19710b/c3e367eea26a45e1a49d9c0b5c0b44aa/FLAGe1c3be770 [2021-02-21 18:52:09,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d19710b/c3e367eea26a45e1a49d9c0b5c0b44aa [2021-02-21 18:52:09,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 18:52:09,389 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 18:52:09,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 18:52:09,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 18:52:09,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 18:52:09,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:52:09" (1/1) ... [2021-02-21 18:52:09,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f2198f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:09, skipping insertion in model container [2021-02-21 18:52:09,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:52:09" (1/1) ... [2021-02-21 18:52:09,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 18:52:09,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 18:52:09,870 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c[18035,18048] [2021-02-21 18:52:09,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:52:09,888 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 18:52:10,037 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c[18035,18048] [2021-02-21 18:52:10,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:52:10,098 INFO L208 MainTranslator]: Completed translation [2021-02-21 18:52:10,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10 WrapperNode [2021-02-21 18:52:10,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 18:52:10,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 18:52:10,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 18:52:10,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 18:52:10,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10" (1/1) ... [2021-02-21 18:52:10,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10" (1/1) ... [2021-02-21 18:52:10,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10" (1/1) ... [2021-02-21 18:52:10,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10" (1/1) ... [2021-02-21 18:52:10,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10" (1/1) ... [2021-02-21 18:52:10,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10" (1/1) ... [2021-02-21 18:52:10,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10" (1/1) ... [2021-02-21 18:52:10,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 18:52:10,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 18:52:10,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 18:52:10,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 18:52:10,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10" (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 [2021-02-21 18:52:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 18:52:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 18:52:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 18:52:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 18:52:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 18:52:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 18:52:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 18:52:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 18:52:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 18:52:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 18:52:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 18:52:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 18:52:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 18:52:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 18:52:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 18:52:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-21 18:52:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-21 18:52:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2021-02-21 18:52:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2021-02-21 18:52:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 18:52:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 18:52:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-21 18:52:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-21 18:52:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 18:52:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 18:52:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 18:52:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 18:52:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 18:52:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 18:52:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-21 18:52:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-21 18:52:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 18:52:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 18:52:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 18:52:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 18:52:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 18:52:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 18:52:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 18:52:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 18:52:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 18:52:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 18:52:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 18:52:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 18:52:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 18:52:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 18:52:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 18:52:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 18:52:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 18:52:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 18:52:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 18:52:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 18:52:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 18:52:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 18:52:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 18:52:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 18:52:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2021-02-21 18:52:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 18:52:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 18:52:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 18:52:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 18:52:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 18:52:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 18:52:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 18:52:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 18:52:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 18:52:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 18:52:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-21 18:52:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-21 18:52:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 18:52:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 18:52:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2021-02-21 18:52:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 18:52:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 18:52:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 18:52:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-21 18:52:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-21 18:52:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-21 18:52:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-21 18:52:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 18:52:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 18:52:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 18:52:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 18:52:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 18:52:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 18:52:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 18:52:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 18:52:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 18:52:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 18:52:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 18:52:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 18:52:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 18:52:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 18:52:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 18:52:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 18:52:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 18:52:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 18:52:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 18:52:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 18:52:11,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 18:52:11,492 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 18:52:11,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:52:11 BoogieIcfgContainer [2021-02-21 18:52:11,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 18:52:11,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 18:52:11,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 18:52:11,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 18:52:11,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 06:52:09" (1/3) ... [2021-02-21 18:52:11,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463d815c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:52:11, skipping insertion in model container [2021-02-21 18:52:11,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:52:10" (2/3) ... [2021-02-21 18:52:11,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463d815c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:52:11, skipping insertion in model container [2021-02-21 18:52:11,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:52:11" (3/3) ... [2021-02-21 18:52:11,507 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2021-02-21 18:52:11,514 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 18:52:11,519 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 18:52:11,538 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 18:52:11,563 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 18:52:11,563 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 18:52:11,563 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 18:52:11,563 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 18:52:11,563 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 18:52:11,563 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 18:52:11,564 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 18:52:11,564 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 18:52:11,586 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states. [2021-02-21 18:52:11,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-02-21 18:52:11,606 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:52:11,607 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] [2021-02-21 18:52:11,608 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:52:11,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:52:11,614 INFO L82 PathProgramCache]: Analyzing trace with hash 739992167, now seen corresponding path program 1 times [2021-02-21 18:52:11,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:52:11,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417794405] [2021-02-21 18:52:11,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:52:11,696 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:52:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:12,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,447 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:52:12,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:52:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:12,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:52:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:12,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:52:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:12,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:52:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:12,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:52:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:12,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:52:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:12,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-21 18:52:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:12,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-21 18:52:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:12,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:12,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:52:12,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417794405] [2021-02-21 18:52:12,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:52:12,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 18:52:12,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245643369] [2021-02-21 18:52:12,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 18:52:12,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:52:12,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 18:52:12,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-21 18:52:12,761 INFO L87 Difference]: Start difference. First operand 333 states. Second operand 4 states. [2021-02-21 18:52:14,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:52:14,229 INFO L93 Difference]: Finished difference Result 508 states and 597 transitions. [2021-02-21 18:52:14,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 18:52:14,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2021-02-21 18:52:14,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:52:14,249 INFO L225 Difference]: With dead ends: 508 [2021-02-21 18:52:14,249 INFO L226 Difference]: Without dead ends: 322 [2021-02-21 18:52:14,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-21 18:52:14,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-02-21 18:52:14,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 275. [2021-02-21 18:52:14,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2021-02-21 18:52:14,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 298 transitions. [2021-02-21 18:52:14,513 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 298 transitions. Word has length 153 [2021-02-21 18:52:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:52:14,516 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 298 transitions. [2021-02-21 18:52:14,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 18:52:14,517 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 298 transitions. [2021-02-21 18:52:14,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-02-21 18:52:14,534 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:52:14,534 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] [2021-02-21 18:52:14,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 18:52:14,535 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:52:14,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:52:14,536 INFO L82 PathProgramCache]: Analyzing trace with hash -868267523, now seen corresponding path program 1 times [2021-02-21 18:52:14,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:52:14,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625280587] [2021-02-21 18:52:14,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:52:14,544 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:52:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:14,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:14,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:14,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:14,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:14,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:14,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:15,040 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:52:15,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:52:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:15,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:15,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:15,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:52:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:15,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:15,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:15,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:52:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:15,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:15,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:15,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:52:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:15,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:15,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:15,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:52:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:15,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:15,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:15,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:52:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:15,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:15,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:15,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-21 18:52:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:15,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:15,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:15,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-21 18:52:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:15,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:15,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:52:15,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625280587] [2021-02-21 18:52:15,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:52:15,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 18:52:15,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759616207] [2021-02-21 18:52:15,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 18:52:15,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:52:15,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 18:52:15,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-21 18:52:15,182 INFO L87 Difference]: Start difference. First operand 275 states and 298 transitions. Second operand 5 states. [2021-02-21 18:52:15,986 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:52:17,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:52:17,103 INFO L93 Difference]: Finished difference Result 436 states and 491 transitions. [2021-02-21 18:52:17,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 18:52:17,104 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2021-02-21 18:52:17,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:52:17,109 INFO L225 Difference]: With dead ends: 436 [2021-02-21 18:52:17,109 INFO L226 Difference]: Without dead ends: 311 [2021-02-21 18:52:17,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-21 18:52:17,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-02-21 18:52:17,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 265. [2021-02-21 18:52:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2021-02-21 18:52:17,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 285 transitions. [2021-02-21 18:52:17,228 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 285 transitions. Word has length 154 [2021-02-21 18:52:17,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:52:17,229 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 285 transitions. [2021-02-21 18:52:17,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 18:52:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 285 transitions. [2021-02-21 18:52:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-02-21 18:52:17,232 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:52:17,232 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] [2021-02-21 18:52:17,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 18:52:17,233 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:52:17,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:52:17,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1574195341, now seen corresponding path program 1 times [2021-02-21 18:52:17,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:52:17,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853065995] [2021-02-21 18:52:17,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:52:17,238 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:52:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:17,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:17,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:17,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:17,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:52:17,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:17,680 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:52:17,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:52:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:17,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:17,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:52:17,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:52:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:17,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:17,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:52:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:17,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:17,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:52:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:17,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:17,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:52:17,785 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-21 18:52:17,786 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-21 18:52:17,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:52:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:17,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:17,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:52:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:17,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:17,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-21 18:52:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:17,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:17,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-21 18:52:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:17,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:17,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:52:17,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853065995] [2021-02-21 18:52:17,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:52:17,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 18:52:17,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471346982] [2021-02-21 18:52:17,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 18:52:17,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:52:17,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 18:52:17,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-21 18:52:17,886 INFO L87 Difference]: Start difference. First operand 265 states and 285 transitions. Second operand 10 states. [2021-02-21 18:52:18,521 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:52:19,006 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:52:19,403 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-21 18:52:19,776 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:20,206 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:52:20,573 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:52:22,276 INFO L93 Difference]: Finished difference Result 456 states and 517 transitions. [2021-02-21 18:52:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 18:52:22,276 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2021-02-21 18:52:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:52:22,281 INFO L225 Difference]: With dead ends: 456 [2021-02-21 18:52:22,281 INFO L226 Difference]: Without dead ends: 311 [2021-02-21 18:52:22,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-21 18:52:22,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-02-21 18:52:22,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 265. [2021-02-21 18:52:22,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2021-02-21 18:52:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 284 transitions. [2021-02-21 18:52:22,393 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 284 transitions. Word has length 163 [2021-02-21 18:52:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:52:22,394 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 284 transitions. [2021-02-21 18:52:22,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 18:52:22,394 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 284 transitions. [2021-02-21 18:52:22,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-21 18:52:22,397 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:52:22,397 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] [2021-02-21 18:52:22,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 18:52:22,398 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:52:22,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:52:22,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1229107091, now seen corresponding path program 1 times [2021-02-21 18:52:22,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:52:22,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392287935] [2021-02-21 18:52:22,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:52:22,402 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:52:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:22,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:22,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:22,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:22,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:22,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,797 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:52:22,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:52:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:22,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:52:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:52:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:52:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:52:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:52:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 18:52:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:22,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:22,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:52:22,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-21 18:52:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-21 18:52:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:22,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:22,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:22,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:52:22,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392287935] [2021-02-21 18:52:22,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:52:22,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 18:52:22,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069964561] [2021-02-21 18:52:22,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 18:52:22,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:52:22,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 18:52:22,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-21 18:52:22,957 INFO L87 Difference]: Start difference. First operand 265 states and 284 transitions. Second operand 7 states. [2021-02-21 18:52:23,653 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:52:25,379 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:52:26,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:52:26,261 INFO L93 Difference]: Finished difference Result 595 states and 684 transitions. [2021-02-21 18:52:26,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 18:52:26,262 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2021-02-21 18:52:26,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:52:26,268 INFO L225 Difference]: With dead ends: 595 [2021-02-21 18:52:26,268 INFO L226 Difference]: Without dead ends: 450 [2021-02-21 18:52:26,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-02-21 18:52:26,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-02-21 18:52:26,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 379. [2021-02-21 18:52:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2021-02-21 18:52:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 409 transitions. [2021-02-21 18:52:26,440 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 409 transitions. Word has length 176 [2021-02-21 18:52:26,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:52:26,442 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 409 transitions. [2021-02-21 18:52:26,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 18:52:26,442 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 409 transitions. [2021-02-21 18:52:26,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-21 18:52:26,445 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:52:26,445 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] [2021-02-21 18:52:26,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 18:52:26,445 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:52:26,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:52:26,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1556316885, now seen corresponding path program 1 times [2021-02-21 18:52:26,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:52:26,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640248444] [2021-02-21 18:52:26,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:52:26,457 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:52:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:26,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:26,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:26,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:26,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:26,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:52:26,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:26,864 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:52:26,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:52:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:26,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:26,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:52:26,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:52:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:26,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:26,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:52:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:26,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:26,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:52:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:26,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:26,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:52:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:26,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:52:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:26,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:26,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 18:52:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:26,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:26,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:26,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:27,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:27,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:27,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:27,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:52:27,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:27,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:27,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:27,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:27,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:52:27,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:52:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:27,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:27,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:27,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:27,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:52:27,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:52:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:27,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:27,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:27,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-21 18:52:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:27,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:27,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:27,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-21 18:52:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:27,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:27,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:52:27,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640248444] [2021-02-21 18:52:27,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:52:27,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 18:52:27,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897923893] [2021-02-21 18:52:27,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 18:52:27,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:52:27,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 18:52:27,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-21 18:52:27,150 INFO L87 Difference]: Start difference. First operand 379 states and 409 transitions. Second operand 7 states. [2021-02-21 18:52:27,834 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:52:28,571 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:52:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:52:31,463 INFO L93 Difference]: Finished difference Result 1079 states and 1285 transitions. [2021-02-21 18:52:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 18:52:31,464 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2021-02-21 18:52:31,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:52:31,471 INFO L225 Difference]: With dead ends: 1079 [2021-02-21 18:52:31,471 INFO L226 Difference]: Without dead ends: 820 [2021-02-21 18:52:31,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-02-21 18:52:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2021-02-21 18:52:31,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 721. [2021-02-21 18:52:31,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2021-02-21 18:52:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 810 transitions. [2021-02-21 18:52:31,771 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 810 transitions. Word has length 200 [2021-02-21 18:52:31,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:52:31,771 INFO L480 AbstractCegarLoop]: Abstraction has 721 states and 810 transitions. [2021-02-21 18:52:31,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 18:52:31,771 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 810 transitions. [2021-02-21 18:52:31,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-21 18:52:31,775 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:52:31,775 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] [2021-02-21 18:52:31,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 18:52:31,775 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:52:31,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:52:31,776 INFO L82 PathProgramCache]: Analyzing trace with hash 83977096, now seen corresponding path program 1 times [2021-02-21 18:52:31,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:52:31,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913348858] [2021-02-21 18:52:31,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:52:31,779 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:52:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:31,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:31,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:31,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:31,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:31,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:31,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:31,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:31,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:31,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:31,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,278 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:52:32,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:52:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:52:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:52:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:52:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:52:32,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:52:32,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:52:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:52:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 18:52:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:32,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:32,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:52:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:32,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:32,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:52:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-21 18:52:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-21 18:52:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:32,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:32,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:52:32,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913348858] [2021-02-21 18:52:32,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:52:32,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-21 18:52:32,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672768300] [2021-02-21 18:52:32,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-21 18:52:32,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:52:32,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-21 18:52:32,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-21 18:52:32,553 INFO L87 Difference]: Start difference. First operand 721 states and 810 transitions. Second operand 13 states. [2021-02-21 18:52:33,318 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:33,722 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-21 18:52:34,135 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:52:34,505 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:52:34,890 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:52:35,999 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:52:36,532 WARN L202 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:52:36,936 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:52:37,385 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:52:37,790 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:52:39,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:52:39,434 INFO L93 Difference]: Finished difference Result 1409 states and 1648 transitions. [2021-02-21 18:52:39,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 18:52:39,435 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 200 [2021-02-21 18:52:39,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:52:39,441 INFO L225 Difference]: With dead ends: 1409 [2021-02-21 18:52:39,441 INFO L226 Difference]: Without dead ends: 808 [2021-02-21 18:52:39,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-21 18:52:39,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2021-02-21 18:52:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 719. [2021-02-21 18:52:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2021-02-21 18:52:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 806 transitions. [2021-02-21 18:52:39,860 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 806 transitions. Word has length 200 [2021-02-21 18:52:39,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:52:39,860 INFO L480 AbstractCegarLoop]: Abstraction has 719 states and 806 transitions. [2021-02-21 18:52:39,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-21 18:52:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 806 transitions. [2021-02-21 18:52:39,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-21 18:52:39,864 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:52:39,865 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] [2021-02-21 18:52:39,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 18:52:39,865 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:52:39,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:52:39,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1057847272, now seen corresponding path program 1 times [2021-02-21 18:52:39,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:52:39,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163377992] [2021-02-21 18:52:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:52:39,870 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:52:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:39,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:39,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:39,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:39,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:39,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:39,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:39,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:39,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:39,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:39,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:39,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:39,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:39,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,363 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:52:40,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:52:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:40,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:52:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:52:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:52:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:52:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:52:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 18:52:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:52:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:52:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-21 18:52:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:40,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:40,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-21 18:52:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:40,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:40,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:52:40,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163377992] [2021-02-21 18:52:40,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:52:40,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 18:52:40,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080286602] [2021-02-21 18:52:40,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 18:52:40,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:52:40,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 18:52:40,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-21 18:52:40,555 INFO L87 Difference]: Start difference. First operand 719 states and 806 transitions. Second operand 10 states. [2021-02-21 18:52:41,270 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:52:43,163 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:43,591 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:52:44,023 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:44,462 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:52:44,844 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:52:45,242 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:45,636 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:46,190 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:52:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:52:48,050 INFO L93 Difference]: Finished difference Result 1968 states and 2335 transitions. [2021-02-21 18:52:48,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-21 18:52:48,057 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2021-02-21 18:52:48,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:52:48,067 INFO L225 Difference]: With dead ends: 1968 [2021-02-21 18:52:48,067 INFO L226 Difference]: Without dead ends: 1369 [2021-02-21 18:52:48,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2021-02-21 18:52:48,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2021-02-21 18:52:48,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1212. [2021-02-21 18:52:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1212 states. [2021-02-21 18:52:48,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1366 transitions. [2021-02-21 18:52:48,653 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1366 transitions. Word has length 200 [2021-02-21 18:52:48,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:52:48,654 INFO L480 AbstractCegarLoop]: Abstraction has 1212 states and 1366 transitions. [2021-02-21 18:52:48,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 18:52:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1366 transitions. [2021-02-21 18:52:48,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-21 18:52:48,658 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:52:48,659 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] [2021-02-21 18:52:48,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 18:52:48,659 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:52:48,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:52:48,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1873359272, now seen corresponding path program 1 times [2021-02-21 18:52:48,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:52:48,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985924306] [2021-02-21 18:52:48,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:52:48,663 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:52:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:48,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:48,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:48,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:48,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:48,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:48,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:48,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:48,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:48,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:48,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:48,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:48,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:48,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:48,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:48,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:48,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:48,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:48,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,142 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:52:49,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:52:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:49,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:52:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:52:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:52:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:52:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:52:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-21 18:52:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-21 18:52:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:49,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:49,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:52:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:52:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-21 18:52:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-21 18:52:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:49,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:49,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:49,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:49,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:52:49,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985924306] [2021-02-21 18:52:49,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:52:49,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-21 18:52:49,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653268926] [2021-02-21 18:52:49,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-21 18:52:49,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:52:49,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-21 18:52:49,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-21 18:52:49,372 INFO L87 Difference]: Start difference. First operand 1212 states and 1366 transitions. Second operand 11 states. [2021-02-21 18:52:50,007 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:52:51,843 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:52,228 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:52:52,636 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:52:53,044 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:53,427 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:53,883 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 18:52:54,284 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:54,678 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:52:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:52:56,598 INFO L93 Difference]: Finished difference Result 2623 states and 3087 transitions. [2021-02-21 18:52:56,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-21 18:52:56,599 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2021-02-21 18:52:56,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:52:56,610 INFO L225 Difference]: With dead ends: 2623 [2021-02-21 18:52:56,611 INFO L226 Difference]: Without dead ends: 1531 [2021-02-21 18:52:56,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2021-02-21 18:52:56,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2021-02-21 18:52:57,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1206. [2021-02-21 18:52:57,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1206 states. [2021-02-21 18:52:57,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1354 transitions. [2021-02-21 18:52:57,263 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1354 transitions. Word has length 205 [2021-02-21 18:52:57,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:52:57,263 INFO L480 AbstractCegarLoop]: Abstraction has 1206 states and 1354 transitions. [2021-02-21 18:52:57,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-21 18:52:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1354 transitions. [2021-02-21 18:52:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-02-21 18:52:57,266 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:52:57,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:52:57,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-21 18:52:57,267 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:52:57,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:52:57,267 INFO L82 PathProgramCache]: Analyzing trace with hash -834920407, now seen corresponding path program 1 times [2021-02-21 18:52:57,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:52:57,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621811981] [2021-02-21 18:52:57,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:52:57,270 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:52:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,614 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:52:57,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:52:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:52:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:52:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:52:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:52:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:52:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-21 18:52:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-21 18:52:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:57,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:52:57,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:52:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:52:57,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:52:57,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:52:57,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:52:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:52:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-02-21 18:52:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-02-21 18:52:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:52:57,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:52:57,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:52:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:52:57,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621811981] [2021-02-21 18:52:57,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:52:57,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-21 18:52:57,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271225903] [2021-02-21 18:52:57,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-21 18:52:57,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:52:57,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-21 18:52:57,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-21 18:52:57,862 INFO L87 Difference]: Start difference. First operand 1206 states and 1354 transitions. Second operand 11 states. [2021-02-21 18:52:59,361 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:52:59,753 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-21 18:53:00,154 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-21 18:53:00,542 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:53:00,953 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:53:01,349 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:53:03,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:53:03,161 INFO L93 Difference]: Finished difference Result 2345 states and 2759 transitions. [2021-02-21 18:53:03,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 18:53:03,162 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2021-02-21 18:53:03,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:53:03,170 INFO L225 Difference]: With dead ends: 2345 [2021-02-21 18:53:03,170 INFO L226 Difference]: Without dead ends: 1259 [2021-02-21 18:53:03,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-02-21 18:53:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2021-02-21 18:53:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1032. [2021-02-21 18:53:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2021-02-21 18:53:03,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1150 transitions. [2021-02-21 18:53:03,661 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1150 transitions. Word has length 206 [2021-02-21 18:53:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:53:03,664 INFO L480 AbstractCegarLoop]: Abstraction has 1032 states and 1150 transitions. [2021-02-21 18:53:03,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-21 18:53:03,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1150 transitions. [2021-02-21 18:53:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-02-21 18:53:03,667 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:53:03,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:53:03,668 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-21 18:53:03,668 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:53:03,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:53:03,668 INFO L82 PathProgramCache]: Analyzing trace with hash 464522956, now seen corresponding path program 1 times [2021-02-21 18:53:03,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:53:03,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042665221] [2021-02-21 18:53:03,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:53:03,673 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:53:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:03,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:03,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:03,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:03,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:53:03,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:03,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:53:03,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:03,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:53:03,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:03,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:53:03,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:03,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,073 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:53:04,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:53:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-21 18:53:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-21 18:53:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-21 18:53:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 18:53:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-21 18:53:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:53:04,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-21 18:53:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 18:53:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-21 18:53:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:53:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 18:53:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 18:53:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-21 18:53:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-21 18:53:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-02-21 18:53:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:53:04,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:04,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:04,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:53:04,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042665221] [2021-02-21 18:53:04,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:53:04,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 18:53:04,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090774511] [2021-02-21 18:53:04,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 18:53:04,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:53:04,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 18:53:04,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-21 18:53:04,230 INFO L87 Difference]: Start difference. First operand 1032 states and 1150 transitions. Second operand 8 states. [2021-02-21 18:53:04,944 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:53:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:53:08,364 INFO L93 Difference]: Finished difference Result 1986 states and 2368 transitions. [2021-02-21 18:53:08,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-21 18:53:08,365 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 211 [2021-02-21 18:53:08,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:53:08,376 INFO L225 Difference]: With dead ends: 1986 [2021-02-21 18:53:08,377 INFO L226 Difference]: Without dead ends: 1983 [2021-02-21 18:53:08,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2021-02-21 18:53:08,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2021-02-21 18:53:09,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1641. [2021-02-21 18:53:09,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1641 states. [2021-02-21 18:53:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 1850 transitions. [2021-02-21 18:53:09,150 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 1850 transitions. Word has length 211 [2021-02-21 18:53:09,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:53:09,151 INFO L480 AbstractCegarLoop]: Abstraction has 1641 states and 1850 transitions. [2021-02-21 18:53:09,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 18:53:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 1850 transitions. [2021-02-21 18:53:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-02-21 18:53:09,156 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:53:09,157 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:53:09,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-21 18:53:09,157 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:53:09,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:53:09,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1352810804, now seen corresponding path program 1 times [2021-02-21 18:53:09,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:53:09,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688112723] [2021-02-21 18:53:09,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:53:09,234 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-02-21 18:53:09,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:09,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:09,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:09,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:09,595 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2021-02-21 18:53:09,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:09,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-02-21 18:53:09,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:09,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:09,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:09,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:09,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:09,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:09,980 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:09,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:09,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-21 18:53:10,293 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:10,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-02-21 18:53:10,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:10,802 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:10,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-21 18:53:10,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:10,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,177 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:11,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-21 18:53:11,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,775 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2021-02-21 18:53:11,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-02-21 18:53:11,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:11,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:11,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:12,190 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:12,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:12,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-21 18:53:12,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:12,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:12,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:12,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:12,510 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:12,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:12,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-02-21 18:53:12,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:12,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:12,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:12,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:12,882 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:12,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:12,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-21 18:53:12,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:12,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:13,233 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:13,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:13,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-02-21 18:53:13,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:13,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:13,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:13,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:13,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:13,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:13,598 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:13,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:13,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-02-21 18:53:13,947 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:13,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:13,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-02-21 18:53:13,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:13,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:13,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:13,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:14,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:14,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:14,345 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:14,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:14,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-21 18:53:14,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:14,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:14,700 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2021-02-21 18:53:14,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:14,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-02-21 18:53:14,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:14,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:14,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:14,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:14,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:14,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:14,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:14,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:15,056 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2021-02-21 18:53:15,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:15,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-02-21 18:53:15,342 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2021-02-21 18:53:15,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:15,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-02-21 18:53:15,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:53:15,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:53:15,370 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-21 18:53:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:53:15,947 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:53:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:53:16,301 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:53:16,852 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 18:53:16,852 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 18:53:16,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-21 18:53:16,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 06:53:16 BoogieIcfgContainer [2021-02-21 18:53:16,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 18:53:16,882 INFO L168 Benchmark]: Toolchain (without parser) took 67506.51 ms. Allocated memory was 151.0 MB in the beginning and 950.0 MB in the end (delta: 799.0 MB). Free memory was 126.3 MB in the beginning and 478.1 MB in the end (delta: -351.8 MB). Peak memory consumption was 448.6 MB. Max. memory is 8.0 GB. [2021-02-21 18:53:16,882 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 18:53:16,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.11 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 103.4 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-21 18:53:16,882 INFO L168 Benchmark]: Boogie Preprocessor took 161.74 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 131.7 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2021-02-21 18:53:16,883 INFO L168 Benchmark]: RCFGBuilder took 1232.18 ms. Allocated memory is still 151.0 MB. Free memory was 131.7 MB in the beginning and 85.9 MB in the end (delta: 45.8 MB). Peak memory consumption was 65.2 MB. Max. memory is 8.0 GB. [2021-02-21 18:53:16,883 INFO L168 Benchmark]: TraceAbstraction took 65381.80 ms. Allocated memory was 151.0 MB in the beginning and 950.0 MB in the end (delta: 799.0 MB). Free memory was 85.4 MB in the beginning and 478.1 MB in the end (delta: -392.7 MB). Peak memory consumption was 406.8 MB. Max. memory is 8.0 GB. [2021-02-21 18:53:16,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 704.11 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 103.4 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 161.74 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 131.7 MB in the end (delta: -28.3 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1232.18 ms. Allocated memory is still 151.0 MB. Free memory was 131.7 MB in the beginning and 85.9 MB in the end (delta: 45.8 MB). Peak memory consumption was 65.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 65381.80 ms. Allocated memory was 151.0 MB in the beginning and 950.0 MB in the end (delta: 799.0 MB). Free memory was 85.4 MB in the beginning and 478.1 MB in the end (delta: -392.7 MB). Peak memory consumption was 406.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 932]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L154] int waterLevel = 1; [L155] int methaneLevelCritical = 0; [L259] int methAndRunningLastTime ; [L365] int pumpRunning = 0; [L366] int systemActive = 1; [L731] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L125] int retValue_acc ; [L126] int tmp ; [L130] FCALL select_helpers() [L131] FCALL select_features() [L132] CALL, EXPR valid_product() [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); [L132] RET, EXPR valid_product() [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L136] FCALL setup() [L137] CALL runTest() [L115] CALL __utac_acc__Specification2_spec__1() [L264] methAndRunningLastTime = 0 [L115] RET __utac_acc__Specification2_spec__1() [L116] CALL test() [L299] int splverifierCounter ; [L300] int tmp ; [L301] int tmp___0 ; [L302] int tmp___1 ; [L303] int tmp___2 ; [L306] splverifierCounter = 0 [L308] COND TRUE 1 [L310] COND TRUE splverifierCounter < 4 [L316] tmp = __VERIFIER_nondet_int() [L318] COND TRUE \read(tmp) [L320] CALL waterRise() [L172] COND TRUE waterLevel < 2 [L173] waterLevel = waterLevel + 1 [L320] RET waterRise() [L326] tmp___0 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___0) [L330] CALL changeMethaneLevel() [L184] COND FALSE !(\read(methaneLevelCritical)) [L187] methaneLevelCritical = 1 [L330] RET changeMethaneLevel() [L336] tmp___2 = __VERIFIER_nondet_int() [L338] COND TRUE \read(tmp___2) [L351] CALL timeShift() [L372] COND FALSE !(\read(pumpRunning)) [L379] COND TRUE \read(systemActive) [L381] CALL processEnvironment() [L427] int tmp ; [L430] COND FALSE !(\read(pumpRunning)) [L445] CALL processEnvironment__wrappee__highWaterSensor() [L401] int tmp ; [L404] COND TRUE ! pumpRunning [L406] CALL, EXPR isHighWaterLevel() [L524] int retValue_acc ; [L525] int tmp ; [L526] int tmp___0 ; [L530] CALL, EXPR isHighWaterSensorDry() [L234] int retValue_acc ; [L237] COND FALSE !(waterLevel < 2) [L241] retValue_acc = 0 [L242] return (retValue_acc); [L530] RET, EXPR isHighWaterSensorDry() [L530] tmp = isHighWaterSensorDry() [L532] COND FALSE !(\read(tmp)) [L535] tmp___0 = 1 [L537] retValue_acc = tmp___0 [L538] return (retValue_acc); [L406] RET, EXPR isHighWaterLevel() [L406] tmp = isHighWaterLevel() [L408] COND TRUE \read(tmp) [L410] CALL activatePump() [L455] pumpRunning = 1 [L410] RET activatePump() [L445] RET processEnvironment__wrappee__highWaterSensor() [L381] RET processEnvironment() [L387] CALL __utac_acc__Specification2_spec__2() [L269] int tmp ; [L270] int tmp___0 ; [L274] CALL, EXPR isMethaneLevelCritical() [L193] int retValue_acc ; [L196] retValue_acc = methaneLevelCritical [L197] return (retValue_acc); [L274] RET, EXPR isMethaneLevelCritical() [L274] tmp = isMethaneLevelCritical() [L276] COND TRUE \read(tmp) [L278] CALL, EXPR isPumpRunning() [L479] int retValue_acc ; [L482] retValue_acc = pumpRunning [L483] return (retValue_acc); [L278] RET, EXPR isPumpRunning() [L278] tmp___0 = isPumpRunning() [L280] COND TRUE \read(tmp___0) [L281] COND FALSE !(\read(methAndRunningLastTime)) [L286] methAndRunningLastTime = 1 [L387] RET __utac_acc__Specification2_spec__2() [L351] RET timeShift() [L308] COND TRUE 1 [L310] COND TRUE splverifierCounter < 4 [L316] tmp = __VERIFIER_nondet_int() [L318] COND FALSE !(\read(tmp)) [L326] tmp___0 = __VERIFIER_nondet_int() [L328] COND FALSE !(\read(tmp___0)) [L336] tmp___2 = __VERIFIER_nondet_int() [L338] COND TRUE \read(tmp___2) [L351] CALL timeShift() [L372] COND FALSE !(\read(pumpRunning)) [L379] COND TRUE \read(systemActive) [L381] CALL processEnvironment() [L427] int tmp ; [L430] COND FALSE !(\read(pumpRunning)) [L445] CALL processEnvironment__wrappee__highWaterSensor() [L401] int tmp ; [L404] COND TRUE ! pumpRunning [L406] CALL, EXPR isHighWaterLevel() [L524] int retValue_acc ; [L525] int tmp ; [L526] int tmp___0 ; [L530] CALL, EXPR isHighWaterSensorDry() [L234] int retValue_acc ; [L237] COND FALSE !(waterLevel < 2) [L241] retValue_acc = 0 [L242] return (retValue_acc); [L530] RET, EXPR isHighWaterSensorDry() [L530] tmp = isHighWaterSensorDry() [L532] COND FALSE !(\read(tmp)) [L535] tmp___0 = 1 [L537] retValue_acc = tmp___0 [L538] return (retValue_acc); [L406] RET, EXPR isHighWaterLevel() [L406] tmp = isHighWaterLevel() [L408] COND TRUE \read(tmp) [L410] CALL activatePump() [L455] pumpRunning = 1 [L410] RET activatePump() [L445] RET processEnvironment__wrappee__highWaterSensor() [L381] RET processEnvironment() [L387] CALL __utac_acc__Specification2_spec__2() [L269] int tmp ; [L270] int tmp___0 ; [L274] CALL, EXPR isMethaneLevelCritical() [L193] int retValue_acc ; [L196] retValue_acc = methaneLevelCritical [L197] return (retValue_acc); [L274] RET, EXPR isMethaneLevelCritical() [L274] tmp = isMethaneLevelCritical() [L276] COND TRUE \read(tmp) [L278] CALL, EXPR isPumpRunning() [L479] int retValue_acc ; [L482] retValue_acc = pumpRunning [L483] return (retValue_acc); [L278] RET, EXPR isPumpRunning() [L278] tmp___0 = isPumpRunning() [L280] COND TRUE \read(tmp___0) [L281] COND TRUE \read(methAndRunningLastTime) [L283] CALL __automaton_fail() [L932] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 655 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 65.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 46.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2608 SDtfs, 6465 SDslu, 4523 SDs, 0 SdLazy, 9095 SolverSat, 1727 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 457 GetRequests, 282 SyntacticMatches, 4 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 22.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1641occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1449 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...