/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_spec4_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 19:03:36,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 19:03:36,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 19:03:36,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 19:03:36,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 19:03:36,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 19:03:36,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 19:03:37,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 19:03:37,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 19:03:37,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 19:03:37,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 19:03:37,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 19:03:37,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 19:03:37,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 19:03:37,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 19:03:37,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 19:03:37,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 19:03:37,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 19:03:37,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 19:03:37,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 19:03:37,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 19:03:37,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 19:03:37,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 19:03:37,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 19:03:37,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 19:03:37,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 19:03:37,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 19:03:37,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 19:03:37,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 19:03:37,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 19:03:37,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 19:03:37,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 19:03:37,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 19:03:37,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 19:03:37,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 19:03:37,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 19:03:37,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 19:03:37,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 19:03:37,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 19:03:37,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 19:03:37,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 19:03:37,097 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 19:03:37,122 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 19:03:37,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 19:03:37,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 19:03:37,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 19:03:37,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 19:03:37,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 19:03:37,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 19:03:37,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 19:03:37,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 19:03:37,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 19:03:37,130 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 19:03:37,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 19:03:37,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 19:03:37,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 19:03:37,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 19:03:37,133 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 19:03:37,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 19:03:37,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 19:03:37,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 19:03:37,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 19:03:37,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 19:03:37,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 19:03:37,135 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 19:03:37,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 19:03:37,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 19:03:37,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 19:03:37,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 19:03:37,621 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 19:03:37,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product12.cil.c [2021-02-21 19:03:37,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a4ec9046/bea66699dfa8421cae8020b648c4acdf/FLAG65c487b3a [2021-02-21 19:03:38,399 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 19:03:38,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product12.cil.c [2021-02-21 19:03:38,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a4ec9046/bea66699dfa8421cae8020b648c4acdf/FLAG65c487b3a [2021-02-21 19:03:38,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a4ec9046/bea66699dfa8421cae8020b648c4acdf [2021-02-21 19:03:38,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 19:03:38,763 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 19:03:38,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 19:03:38,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 19:03:38,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 19:03:38,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 07:03:38" (1/1) ... [2021-02-21 19:03:38,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a002ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:38, skipping insertion in model container [2021-02-21 19:03:38,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 07:03:38" (1/1) ... [2021-02-21 19:03:38,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 19:03:38,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 19:03:39,267 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_spec4_product12.cil.c[16910,16923] [2021-02-21 19:03:39,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 19:03:39,282 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 19:03:39,369 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_spec4_product12.cil.c[16910,16923] [2021-02-21 19:03:39,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 19:03:39,420 INFO L208 MainTranslator]: Completed translation [2021-02-21 19:03:39,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39 WrapperNode [2021-02-21 19:03:39,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 19:03:39,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 19:03:39,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 19:03:39,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 19:03:39,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39" (1/1) ... [2021-02-21 19:03:39,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39" (1/1) ... [2021-02-21 19:03:39,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39" (1/1) ... [2021-02-21 19:03:39,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39" (1/1) ... [2021-02-21 19:03:39,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39" (1/1) ... [2021-02-21 19:03:39,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39" (1/1) ... [2021-02-21 19:03:39,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39" (1/1) ... [2021-02-21 19:03:39,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 19:03:39,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 19:03:39,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 19:03:39,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 19:03:39,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39" (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 19:03:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 19:03:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 19:03:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 19:03:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 19:03:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 19:03:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 19:03:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 19:03:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 19:03:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 19:03:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 19:03:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-21 19:03:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 19:03:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 19:03:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 19:03:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2021-02-21 19:03:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 19:03:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 19:03:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 19:03:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 19:03:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 19:03:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-21 19:03:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-21 19:03:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 19:03:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 19:03:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 19:03:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 19:03:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 19:03:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 19:03:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 19:03:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 19:03:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 19:03:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 19:03:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 19:03:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 19:03:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 19:03:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 19:03:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 19:03:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 19:03:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 19:03:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 19:03:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 19:03:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 19:03:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 19:03:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 19:03:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 19:03:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 19:03:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 19:03:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 19:03:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 19:03:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 19:03:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 19:03:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 19:03:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-21 19:03:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-21 19:03:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-21 19:03:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 19:03:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 19:03:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 19:03:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 19:03:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 19:03:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 19:03:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 19:03:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2021-02-21 19:03:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 19:03:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 19:03:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 19:03:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 19:03:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 19:03:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 19:03:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 19:03:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 19:03:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 19:03:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 19:03:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 19:03:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 19:03:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 19:03:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 19:03:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 19:03:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 19:03:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 19:03:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 19:03:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 19:03:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 19:03:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 19:03:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 19:03:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 19:03:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 19:03:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 19:03:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 19:03:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 19:03:40,762 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 19:03:40,762 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 19:03:40,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 07:03:40 BoogieIcfgContainer [2021-02-21 19:03:40,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 19:03:40,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 19:03:40,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 19:03:40,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 19:03:40,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 07:03:38" (1/3) ... [2021-02-21 19:03:40,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665849ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 07:03:40, skipping insertion in model container [2021-02-21 19:03:40,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 07:03:39" (2/3) ... [2021-02-21 19:03:40,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665849ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 07:03:40, skipping insertion in model container [2021-02-21 19:03:40,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 07:03:40" (3/3) ... [2021-02-21 19:03:40,781 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product12.cil.c [2021-02-21 19:03:40,792 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 19:03:40,798 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 19:03:40,819 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 19:03:40,853 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 19:03:40,853 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 19:03:40,853 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 19:03:40,853 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 19:03:40,853 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 19:03:40,854 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 19:03:40,854 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 19:03:40,854 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 19:03:40,877 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states. [2021-02-21 19:03:40,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-21 19:03:40,896 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:03:40,897 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] [2021-02-21 19:03:40,898 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:03:40,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:03:40,905 INFO L82 PathProgramCache]: Analyzing trace with hash 715175809, now seen corresponding path program 1 times [2021-02-21 19:03:40,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:03:40,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22381947] [2021-02-21 19:03:40,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:03:41,003 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:03:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:41,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:41,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:41,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:41,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:41,842 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:03:41,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:03:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:41,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:41,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:41,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:03:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:41,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:41,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:41,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:03:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:41,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:41,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:41,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:03:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:42,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:42,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:42,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:03:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:42,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:42,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:42,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-21 19:03:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:42,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:42,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:42,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 19:03:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:42,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:42,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:42,047 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 19:03:42,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22381947] [2021-02-21 19:03:42,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:03:42,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 19:03:42,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816384871] [2021-02-21 19:03:42,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 19:03:42,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:03:42,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 19:03:42,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 19:03:42,075 INFO L87 Difference]: Start difference. First operand 260 states. Second operand 3 states. [2021-02-21 19:03:43,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:03:43,550 INFO L93 Difference]: Finished difference Result 378 states and 453 transitions. [2021-02-21 19:03:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 19:03:43,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-21 19:03:43,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:03:43,568 INFO L225 Difference]: With dead ends: 378 [2021-02-21 19:03:43,568 INFO L226 Difference]: Without dead ends: 248 [2021-02-21 19:03:43,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 19:03:43,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-02-21 19:03:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 208. [2021-02-21 19:03:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2021-02-21 19:03:43,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 222 transitions. [2021-02-21 19:03:43,704 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 222 transitions. Word has length 147 [2021-02-21 19:03:43,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:03:43,706 INFO L480 AbstractCegarLoop]: Abstraction has 208 states and 222 transitions. [2021-02-21 19:03:43,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 19:03:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 222 transitions. [2021-02-21 19:03:43,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-21 19:03:43,711 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:03:43,711 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] [2021-02-21 19:03:43,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 19:03:43,712 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:03:43,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:03:43,713 INFO L82 PathProgramCache]: Analyzing trace with hash 233204979, now seen corresponding path program 1 times [2021-02-21 19:03:43,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:03:43,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236380287] [2021-02-21 19:03:43,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:03:43,718 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:03:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:43,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:43,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:43,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:43,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:43,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:43,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:44,183 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:03:44,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:03:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:44,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:44,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:44,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:03:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:44,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:44,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:44,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:03:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:44,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:44,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:44,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:03:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:44,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:44,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:44,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:03:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:44,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:44,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:44,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-21 19:03:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:44,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:44,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:44,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 19:03:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:44,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:44,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:44,295 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 19:03:44,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236380287] [2021-02-21 19:03:44,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:03:44,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 19:03:44,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683929745] [2021-02-21 19:03:44,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 19:03:44,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:03:44,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 19:03:44,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 19:03:44,299 INFO L87 Difference]: Start difference. First operand 208 states and 222 transitions. Second operand 4 states. [2021-02-21 19:03:45,099 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:03:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:03:45,787 INFO L93 Difference]: Finished difference Result 281 states and 313 transitions. [2021-02-21 19:03:45,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 19:03:45,788 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-21 19:03:45,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:03:45,792 INFO L225 Difference]: With dead ends: 281 [2021-02-21 19:03:45,792 INFO L226 Difference]: Without dead ends: 231 [2021-02-21 19:03:45,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 19:03:45,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-02-21 19:03:45,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 198. [2021-02-21 19:03:45,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-02-21 19:03:45,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 209 transitions. [2021-02-21 19:03:45,869 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 209 transitions. Word has length 148 [2021-02-21 19:03:45,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:03:45,869 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 209 transitions. [2021-02-21 19:03:45,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 19:03:45,870 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 209 transitions. [2021-02-21 19:03:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-02-21 19:03:45,875 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:03:45,875 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] [2021-02-21 19:03:45,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 19:03:45,876 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:03:45,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:03:45,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1488789586, now seen corresponding path program 1 times [2021-02-21 19:03:45,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:03:45,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91229283] [2021-02-21 19:03:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:03:45,886 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:03:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:46,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:46,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:46,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:03:46,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,451 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:03:46,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:03:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:46,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:03:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:46,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:03:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:46,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:03:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:46,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:03:46,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:03:46,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:03:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:46,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-21 19:03:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:46,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:46,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-21 19:03:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:46,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-21 19:03:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:46,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:46,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:46,724 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 19:03:46,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91229283] [2021-02-21 19:03:46,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:03:46,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 19:03:46,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098287659] [2021-02-21 19:03:46,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 19:03:46,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:03:46,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 19:03:46,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-21 19:03:46,729 INFO L87 Difference]: Start difference. First operand 198 states and 209 transitions. Second operand 10 states. [2021-02-21 19:03:47,387 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:03:47,812 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:03:48,203 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 19:03:48,604 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:03:48,981 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:03:49,358 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:03:50,469 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:03:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:03:52,108 INFO L93 Difference]: Finished difference Result 511 states and 595 transitions. [2021-02-21 19:03:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 19:03:52,111 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2021-02-21 19:03:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:03:52,117 INFO L225 Difference]: With dead ends: 511 [2021-02-21 19:03:52,118 INFO L226 Difference]: Without dead ends: 428 [2021-02-21 19:03:52,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-21 19:03:52,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-02-21 19:03:52,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 329. [2021-02-21 19:03:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2021-02-21 19:03:52,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 361 transitions. [2021-02-21 19:03:52,289 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 361 transitions. Word has length 161 [2021-02-21 19:03:52,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:03:52,289 INFO L480 AbstractCegarLoop]: Abstraction has 329 states and 361 transitions. [2021-02-21 19:03:52,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 19:03:52,290 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 361 transitions. [2021-02-21 19:03:52,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-02-21 19:03:52,292 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:03:52,293 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] [2021-02-21 19:03:52,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 19:03:52,293 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:03:52,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:03:52,294 INFO L82 PathProgramCache]: Analyzing trace with hash -778465437, now seen corresponding path program 1 times [2021-02-21 19:03:52,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:03:52,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910519951] [2021-02-21 19:03:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:03:52,298 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:03:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:52,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:52,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:52,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:52,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:03:52,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:03:52,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:03:52,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:03:52,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:03:52,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 19:03:52,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:52,752 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:03:52,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:03:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:52,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 19:03:52,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:03:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:52,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:03:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:52,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:03:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:52,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 19:03:52,850 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-21 19:03:52,852 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-21 19:03:52,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:03:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:52,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-21 19:03:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:52,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 19:03:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:52,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-21 19:03:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:52,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:52,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:03:52,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-21 19:03:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:03:52,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:03:52,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:03:53,007 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 19:03:53,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910519951] [2021-02-21 19:03:53,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:03:53,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-21 19:03:53,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659722713] [2021-02-21 19:03:53,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-21 19:03:53,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:03:53,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-21 19:03:53,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-21 19:03:53,010 INFO L87 Difference]: Start difference. First operand 329 states and 361 transitions. Second operand 14 states. [2021-02-21 19:03:53,765 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:03:54,268 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:03:54,672 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 19:03:55,067 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:03:55,485 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:03:55,861 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:03:56,678 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 19:03:57,759 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:03:58,168 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:03:58,596 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:03:59,003 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 19:03:59,339 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:03:59,705 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 19:04:00,083 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 19:04:00,442 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:04:00,825 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:04:01,235 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:04:01,703 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-21 19:04:02,053 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 19:04:02,475 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 19:04:03,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:04:03,759 INFO L93 Difference]: Finished difference Result 1017 states and 1238 transitions. [2021-02-21 19:04:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-21 19:04:03,762 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 164 [2021-02-21 19:04:03,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:04:03,770 INFO L225 Difference]: With dead ends: 1017 [2021-02-21 19:04:03,770 INFO L226 Difference]: Without dead ends: 803 [2021-02-21 19:04:03,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-21 19:04:03,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2021-02-21 19:04:04,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 690. [2021-02-21 19:04:04,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2021-02-21 19:04:04,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 788 transitions. [2021-02-21 19:04:04,143 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 788 transitions. Word has length 164 [2021-02-21 19:04:04,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:04:04,143 INFO L480 AbstractCegarLoop]: Abstraction has 690 states and 788 transitions. [2021-02-21 19:04:04,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-21 19:04:04,143 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 788 transitions. [2021-02-21 19:04:04,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-02-21 19:04:04,147 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:04:04,147 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] [2021-02-21 19:04:04,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 19:04:04,148 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:04:04,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:04:04,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1442000778, now seen corresponding path program 1 times [2021-02-21 19:04:04,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:04:04,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151127722] [2021-02-21 19:04:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:04:04,152 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 19:04:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:04:04,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:04:04,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:04:04,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:04:04,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,521 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 19:04:04,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 19:04:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 19:04:04,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 19:04:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 19:04:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 19:04:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 19:04:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-21 19:04:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 19:04:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-21 19:04:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-21 19:04:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 19:04:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 19:04:04,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:04,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:04,672 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 19:04:04,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151127722] [2021-02-21 19:04:04,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 19:04:04,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 19:04:04,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87750783] [2021-02-21 19:04:04,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 19:04:04,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 19:04:04,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 19:04:04,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-21 19:04:04,675 INFO L87 Difference]: Start difference. First operand 690 states and 788 transitions. Second operand 6 states. [2021-02-21 19:04:05,308 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 19:04:06,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 19:04:06,559 INFO L93 Difference]: Finished difference Result 1291 states and 1529 transitions. [2021-02-21 19:04:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-21 19:04:06,560 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2021-02-21 19:04:06,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 19:04:06,566 INFO L225 Difference]: With dead ends: 1291 [2021-02-21 19:04:06,566 INFO L226 Difference]: Without dead ends: 716 [2021-02-21 19:04:06,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-21 19:04:06,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-02-21 19:04:06,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 625. [2021-02-21 19:04:06,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2021-02-21 19:04:06,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 684 transitions. [2021-02-21 19:04:06,902 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 684 transitions. Word has length 169 [2021-02-21 19:04:06,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 19:04:06,903 INFO L480 AbstractCegarLoop]: Abstraction has 625 states and 684 transitions. [2021-02-21 19:04:06,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 19:04:06,903 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 684 transitions. [2021-02-21 19:04:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-02-21 19:04:06,908 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 19:04:06,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:04:06,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 19:04:06,909 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 19:04:06,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 19:04:06,909 INFO L82 PathProgramCache]: Analyzing trace with hash -153961050, now seen corresponding path program 1 times [2021-02-21 19:04:06,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 19:04:06,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147144753] [2021-02-21 19:04:06,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 19:04:07,455 WARN L202 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2021-02-21 19:04:07,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:07,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-02-21 19:04:07,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:07,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:07,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:07,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:07,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:07,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:07,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:07,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 19:04:08,038 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2021-02-21 19:04:08,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:08,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-02-21 19:04:08,523 WARN L202 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 106 [2021-02-21 19:04:08,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 19:04:08,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239