/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/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:20:45,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:20:45,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:20:45,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 21:20:45,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 21:20:45,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 21:20:45,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 21:20:45,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 21:20:45,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 21:20:45,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 21:20:45,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 21:20:45,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 21:20:45,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:20:45,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:20:45,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:20:45,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:20:45,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:20:45,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:20:45,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:20:45,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:20:45,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:20:45,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:20:45,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:20:45,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:20:45,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:20:45,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:20:45,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:20:45,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:20:45,678 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 21:20:45,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:20:45,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:20:45,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:20:45,711 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:20:45,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:20:45,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:20:45,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:20:45,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:20:45,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:20:45,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:20:45,713 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:20:45,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:20:45,714 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:20:45,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:20:45,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:20:45,715 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:20:45,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:20:45,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:20:45,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:20:45,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:20:45,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:20:45,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:20:45,716 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:20:46,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:20:46,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:20:46,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:20:46,271 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:20:46,274 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:20:46,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2021-02-21 21:20:46,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deed79f8f/6d4f265e5c774e83ae97ff3cdb32ffe3/FLAG33ee36946 [2021-02-21 21:20:47,007 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:20:47,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2021-02-21 21:20:47,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deed79f8f/6d4f265e5c774e83ae97ff3cdb32ffe3/FLAG33ee36946 [2021-02-21 21:20:47,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deed79f8f/6d4f265e5c774e83ae97ff3cdb32ffe3 [2021-02-21 21:20:47,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:20:47,404 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:20:47,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:20:47,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:20:47,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:20:47,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:20:47" (1/1) ... [2021-02-21 21:20:47,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b351891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47, skipping insertion in model container [2021-02-21 21:20:47,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:20:47" (1/1) ... [2021-02-21 21:20:47,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:20:47,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:20:47,768 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2021-02-21 21:20:47,781 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2021-02-21 21:20:47,787 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2021-02-21 21:20:47,789 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2021-02-21 21:20:47,792 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2021-02-21 21:20:47,794 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2021-02-21 21:20:47,797 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2021-02-21 21:20:47,800 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2021-02-21 21:20:47,804 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2021-02-21 21:20:47,807 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2021-02-21 21:20:47,810 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2021-02-21 21:20:47,814 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2021-02-21 21:20:47,818 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2021-02-21 21:20:47,820 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2021-02-21 21:20:47,823 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2021-02-21 21:20:47,825 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2021-02-21 21:20:47,829 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2021-02-21 21:20:47,831 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2021-02-21 21:20:47,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:20:47,845 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:20:47,865 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2021-02-21 21:20:47,867 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2021-02-21 21:20:47,869 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2021-02-21 21:20:47,871 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2021-02-21 21:20:47,873 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2021-02-21 21:20:47,875 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2021-02-21 21:20:47,877 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2021-02-21 21:20:47,883 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2021-02-21 21:20:47,889 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2021-02-21 21:20:47,894 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2021-02-21 21:20:47,901 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2021-02-21 21:20:47,903 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2021-02-21 21:20:47,909 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2021-02-21 21:20:47,915 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2021-02-21 21:20:47,917 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2021-02-21 21:20:47,919 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2021-02-21 21:20:47,927 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2021-02-21 21:20:47,935 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2021-02-21 21:20:47,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:20:47,966 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:20:47,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47 WrapperNode [2021-02-21 21:20:47,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:20:47,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:20:47,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:20:47,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:20:47,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47" (1/1) ... [2021-02-21 21:20:47,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47" (1/1) ... [2021-02-21 21:20:47,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47" (1/1) ... [2021-02-21 21:20:47,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47" (1/1) ... [2021-02-21 21:20:48,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47" (1/1) ... [2021-02-21 21:20:48,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47" (1/1) ... [2021-02-21 21:20:48,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47" (1/1) ... [2021-02-21 21:20:48,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:20:48,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:20:48,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:20:48,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:20:48,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47" (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 21:20:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:20:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:20:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:20:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-21 21:20:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:20:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-21 21:20:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:20:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 21:20:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:20:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:20:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:20:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:20:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:20:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:20:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:20:48,898 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:20:48,899 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 21:20:48,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:20:48 BoogieIcfgContainer [2021-02-21 21:20:48,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:20:48,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:20:48,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:20:48,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:20:48,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:20:47" (1/3) ... [2021-02-21 21:20:48,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa8585d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:20:48, skipping insertion in model container [2021-02-21 21:20:48,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:20:47" (2/3) ... [2021-02-21 21:20:48,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa8585d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:20:48, skipping insertion in model container [2021-02-21 21:20:48,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:20:48" (3/3) ... [2021-02-21 21:20:48,912 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2021-02-21 21:20:48,921 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:20:48,927 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2021-02-21 21:20:48,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-02-21 21:20:48,981 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:20:48,981 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:20:48,981 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:20:48,981 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:20:48,982 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:20:48,982 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:20:48,982 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:20:48,982 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:20:49,012 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states. [2021-02-21 21:20:49,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-21 21:20:49,024 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:20:49,026 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] [2021-02-21 21:20:49,027 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:20:49,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:20:49,035 INFO L82 PathProgramCache]: Analyzing trace with hash 747375387, now seen corresponding path program 1 times [2021-02-21 21:20:49,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:20:49,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912737144] [2021-02-21 21:20:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:20:49,150 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:20:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:49,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:49,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:49,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:49,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:20:49,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:49,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:20:49,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:49,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:49,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:49,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:49,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:49,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:49,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:20:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:49,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:49,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:49,540 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 21:20:49,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912737144] [2021-02-21 21:20:49,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:20:49,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 21:20:49,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119462033] [2021-02-21 21:20:49,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 21:20:49,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:20:49,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 21:20:49,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-21 21:20:49,577 INFO L87 Difference]: Start difference. First operand 232 states. Second operand 7 states. [2021-02-21 21:20:50,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:20:50,626 INFO L93 Difference]: Finished difference Result 298 states and 344 transitions. [2021-02-21 21:20:50,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-21 21:20:50,628 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2021-02-21 21:20:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:20:50,642 INFO L225 Difference]: With dead ends: 298 [2021-02-21 21:20:50,643 INFO L226 Difference]: Without dead ends: 247 [2021-02-21 21:20:50,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-02-21 21:20:50,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-02-21 21:20:50,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 195. [2021-02-21 21:20:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2021-02-21 21:20:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 198 transitions. [2021-02-21 21:20:50,813 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 198 transitions. Word has length 46 [2021-02-21 21:20:50,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:20:50,814 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 198 transitions. [2021-02-21 21:20:50,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 21:20:50,814 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 198 transitions. [2021-02-21 21:20:50,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-21 21:20:50,816 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:20:50,817 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] [2021-02-21 21:20:50,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:20:50,818 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:20:50,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:20:50,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1649060770, now seen corresponding path program 1 times [2021-02-21 21:20:50,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:20:50,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587421735] [2021-02-21 21:20:50,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:20:50,836 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:20:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:50,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:50,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:50,916 WARN L141 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size [2021-02-21 21:20:50,917 WARN L147 QuantifierPusher]: treesize reduction 6, result has 45.5 percent of original size 5 [2021-02-21 21:20:50,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:50,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:50,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:50,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:20:50,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:50,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:50,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:50,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:50,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:50,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:50,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:20:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:51,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:51,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:51,030 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 21:20:51,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587421735] [2021-02-21 21:20:51,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:20:51,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:20:51,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812488972] [2021-02-21 21:20:51,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:20:51,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:20:51,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:20:51,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:20:51,034 INFO L87 Difference]: Start difference. First operand 195 states and 198 transitions. Second operand 8 states. [2021-02-21 21:20:51,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:20:51,508 INFO L93 Difference]: Finished difference Result 195 states and 198 transitions. [2021-02-21 21:20:51,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-21 21:20:51,509 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2021-02-21 21:20:51,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:20:51,512 INFO L225 Difference]: With dead ends: 195 [2021-02-21 21:20:51,512 INFO L226 Difference]: Without dead ends: 193 [2021-02-21 21:20:51,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-02-21 21:20:51,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-02-21 21:20:51,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-02-21 21:20:51,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2021-02-21 21:20:51,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 196 transitions. [2021-02-21 21:20:51,575 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 196 transitions. Word has length 51 [2021-02-21 21:20:51,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:20:51,576 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 196 transitions. [2021-02-21 21:20:51,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:20:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 196 transitions. [2021-02-21 21:20:51,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-21 21:20:51,578 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:20:51,578 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] [2021-02-21 21:20:51,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:20:51,579 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:20:51,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:20:51,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1460429861, now seen corresponding path program 1 times [2021-02-21 21:20:51,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:20:51,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545648906] [2021-02-21 21:20:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:20:51,583 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:20:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:51,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:51,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:51,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:51,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:20:51,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:51,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:20:51,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:51,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:51,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:51,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:51,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:51,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:51,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:20:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:51,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:51,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:51,732 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 21:20:51,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545648906] [2021-02-21 21:20:51,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:20:51,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 21:20:51,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150595545] [2021-02-21 21:20:51,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 21:20:51,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:20:51,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 21:20:51,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-21 21:20:51,735 INFO L87 Difference]: Start difference. First operand 193 states and 196 transitions. Second operand 7 states. [2021-02-21 21:20:52,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:20:52,547 INFO L93 Difference]: Finished difference Result 245 states and 250 transitions. [2021-02-21 21:20:52,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 21:20:52,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2021-02-21 21:20:52,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:20:52,550 INFO L225 Difference]: With dead ends: 245 [2021-02-21 21:20:52,550 INFO L226 Difference]: Without dead ends: 243 [2021-02-21 21:20:52,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-02-21 21:20:52,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-02-21 21:20:52,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 191. [2021-02-21 21:20:52,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2021-02-21 21:20:52,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 194 transitions. [2021-02-21 21:20:52,609 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 194 transitions. Word has length 61 [2021-02-21 21:20:52,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:20:52,609 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 194 transitions. [2021-02-21 21:20:52,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 21:20:52,610 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 194 transitions. [2021-02-21 21:20:52,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-02-21 21:20:52,611 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:20:52,611 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] [2021-02-21 21:20:52,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:20:52,612 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:20:52,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:20:52,612 INFO L82 PathProgramCache]: Analyzing trace with hash -180659599, now seen corresponding path program 1 times [2021-02-21 21:20:52,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:20:52,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875573362] [2021-02-21 21:20:52,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:20:52,616 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:20:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:52,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:52,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:52,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:52,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:20:52,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:52,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:20:52,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:52,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:52,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:52,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:52,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:52,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:52,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:20:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:52,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:52,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:52,775 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 21:20:52,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875573362] [2021-02-21 21:20:52,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:20:52,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 21:20:52,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763134808] [2021-02-21 21:20:52,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 21:20:52,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:20:52,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 21:20:52,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-21 21:20:52,778 INFO L87 Difference]: Start difference. First operand 191 states and 194 transitions. Second operand 7 states. [2021-02-21 21:20:53,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:20:53,220 INFO L93 Difference]: Finished difference Result 191 states and 194 transitions. [2021-02-21 21:20:53,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 21:20:53,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2021-02-21 21:20:53,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:20:53,222 INFO L225 Difference]: With dead ends: 191 [2021-02-21 21:20:53,223 INFO L226 Difference]: Without dead ends: 189 [2021-02-21 21:20:53,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-02-21 21:20:53,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-02-21 21:20:53,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-02-21 21:20:53,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-02-21 21:20:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 192 transitions. [2021-02-21 21:20:53,273 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 192 transitions. Word has length 66 [2021-02-21 21:20:53,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:20:53,273 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 192 transitions. [2021-02-21 21:20:53,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 21:20:53,274 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 192 transitions. [2021-02-21 21:20:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-02-21 21:20:53,275 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:20:53,275 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] [2021-02-21 21:20:53,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 21:20:53,276 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:20:53,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:20:53,276 INFO L82 PathProgramCache]: Analyzing trace with hash -823680305, now seen corresponding path program 1 times [2021-02-21 21:20:53,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:20:53,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667589386] [2021-02-21 21:20:53,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:20:53,279 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:20:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:53,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:53,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:53,329 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-21 21:20:53,330 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-21 21:20:53,342 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-21 21:20:53,343 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-21 21:20:53,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:53,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:53,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:53,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:53,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:53,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:53,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:53,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:53,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:20:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:53,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:53,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:53,427 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 21:20:53,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667589386] [2021-02-21 21:20:53,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:20:53,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:20:53,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322466001] [2021-02-21 21:20:53,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:20:53,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:20:53,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:20:53,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:20:53,430 INFO L87 Difference]: Start difference. First operand 189 states and 192 transitions. Second operand 8 states. [2021-02-21 21:20:55,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:20:55,037 INFO L93 Difference]: Finished difference Result 342 states and 349 transitions. [2021-02-21 21:20:55,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-21 21:20:55,039 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 72 [2021-02-21 21:20:55,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:20:55,041 INFO L225 Difference]: With dead ends: 342 [2021-02-21 21:20:55,041 INFO L226 Difference]: Without dead ends: 340 [2021-02-21 21:20:55,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-02-21 21:20:55,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-02-21 21:20:55,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 200. [2021-02-21 21:20:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-21 21:20:55,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 205 transitions. [2021-02-21 21:20:55,111 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 205 transitions. Word has length 72 [2021-02-21 21:20:55,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:20:55,112 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 205 transitions. [2021-02-21 21:20:55,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:20:55,112 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 205 transitions. [2021-02-21 21:20:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-02-21 21:20:55,113 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:20:55,114 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] [2021-02-21 21:20:55,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 21:20:55,114 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:20:55,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:20:55,115 INFO L82 PathProgramCache]: Analyzing trace with hash 808859565, now seen corresponding path program 1 times [2021-02-21 21:20:55,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:20:55,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756052671] [2021-02-21 21:20:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:20:55,117 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:20:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:55,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:55,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:55,166 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-21 21:20:55,168 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-21 21:20:55,181 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-21 21:20:55,182 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-21 21:20:55,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:55,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:55,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:55,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:55,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:55,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:55,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:55,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:55,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:20:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:55,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:55,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:55,269 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 21:20:55,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756052671] [2021-02-21 21:20:55,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:20:55,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:20:55,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727319658] [2021-02-21 21:20:55,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:20:55,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:20:55,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:20:55,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:20:55,272 INFO L87 Difference]: Start difference. First operand 200 states and 205 transitions. Second operand 8 states. [2021-02-21 21:20:55,991 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-02-21 21:20:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:20:57,426 INFO L93 Difference]: Finished difference Result 479 states and 488 transitions. [2021-02-21 21:20:57,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 21:20:57,426 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2021-02-21 21:20:57,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:20:57,433 INFO L225 Difference]: With dead ends: 479 [2021-02-21 21:20:57,433 INFO L226 Difference]: Without dead ends: 477 [2021-02-21 21:20:57,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-02-21 21:20:57,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-02-21 21:20:57,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 205. [2021-02-21 21:20:57,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2021-02-21 21:20:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 210 transitions. [2021-02-21 21:20:57,499 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 210 transitions. Word has length 77 [2021-02-21 21:20:57,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:20:57,500 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 210 transitions. [2021-02-21 21:20:57,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:20:57,500 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 210 transitions. [2021-02-21 21:20:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-02-21 21:20:57,501 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:20:57,501 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] [2021-02-21 21:20:57,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 21:20:57,502 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:20:57,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:20:57,503 INFO L82 PathProgramCache]: Analyzing trace with hash 515755433, now seen corresponding path program 1 times [2021-02-21 21:20:57,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:20:57,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422572982] [2021-02-21 21:20:57,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:20:57,506 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:20:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:57,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:57,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:57,547 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-21 21:20:57,548 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-21 21:20:57,559 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-21 21:20:57,560 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-21 21:20:57,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:57,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:20:57,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:57,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:57,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:57,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:57,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:57,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:57,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:20:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:57,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:57,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:57,663 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 21:20:57,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422572982] [2021-02-21 21:20:57,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:20:57,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:20:57,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570532184] [2021-02-21 21:20:57,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:20:57,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:20:57,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:20:57,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:20:57,666 INFO L87 Difference]: Start difference. First operand 205 states and 210 transitions. Second operand 8 states. [2021-02-21 21:20:58,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:20:58,515 INFO L93 Difference]: Finished difference Result 205 states and 210 transitions. [2021-02-21 21:20:58,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-21 21:20:58,516 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2021-02-21 21:20:58,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:20:58,518 INFO L225 Difference]: With dead ends: 205 [2021-02-21 21:20:58,518 INFO L226 Difference]: Without dead ends: 203 [2021-02-21 21:20:58,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-02-21 21:20:58,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-02-21 21:20:58,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2021-02-21 21:20:58,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2021-02-21 21:20:58,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 208 transitions. [2021-02-21 21:20:58,580 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 208 transitions. Word has length 77 [2021-02-21 21:20:58,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:20:58,580 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 208 transitions. [2021-02-21 21:20:58,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:20:58,580 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 208 transitions. [2021-02-21 21:20:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-21 21:20:58,582 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:20:58,582 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] [2021-02-21 21:20:58,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 21:20:58,582 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:20:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:20:58,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1890080386, now seen corresponding path program 1 times [2021-02-21 21:20:58,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:20:58,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978848667] [2021-02-21 21:20:58,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:20:58,585 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:20:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:58,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:58,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:58,624 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-21 21:20:58,625 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-21 21:20:58,636 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-21 21:20:58,637 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-21 21:20:58,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:58,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:20:58,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:58,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:58,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:58,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:20:58,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:58,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:58,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:20:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:20:58,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:20:58,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:20:58,730 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 21:20:58,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978848667] [2021-02-21 21:20:58,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:20:58,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:20:58,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138771871] [2021-02-21 21:20:58,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:20:58,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:20:58,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:20:58,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:20:58,733 INFO L87 Difference]: Start difference. First operand 203 states and 208 transitions. Second operand 8 states. [2021-02-21 21:20:59,375 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-02-21 21:20:59,502 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2021-02-21 21:20:59,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:20:59,976 INFO L93 Difference]: Finished difference Result 305 states and 311 transitions. [2021-02-21 21:20:59,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 21:20:59,977 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2021-02-21 21:20:59,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:20:59,984 INFO L225 Difference]: With dead ends: 305 [2021-02-21 21:20:59,984 INFO L226 Difference]: Without dead ends: 303 [2021-02-21 21:20:59,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-02-21 21:20:59,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-02-21 21:21:00,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 201. [2021-02-21 21:21:00,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2021-02-21 21:21:00,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 206 transitions. [2021-02-21 21:21:00,045 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 206 transitions. Word has length 82 [2021-02-21 21:21:00,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:21:00,045 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 206 transitions. [2021-02-21 21:21:00,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:21:00,046 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 206 transitions. [2021-02-21 21:21:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-21 21:21:00,047 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:21:00,047 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] [2021-02-21 21:21:00,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-21 21:21:00,047 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:21:00,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:21:00,048 INFO L82 PathProgramCache]: Analyzing trace with hash 2105037266, now seen corresponding path program 1 times [2021-02-21 21:21:00,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:21:00,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938876488] [2021-02-21 21:21:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:21:00,050 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:21:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:21:00,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:00,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 21:21:00,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:00,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:21:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:21:00,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:00,148 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 21:21:00,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938876488] [2021-02-21 21:21:00,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:21:00,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 21:21:00,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149858997] [2021-02-21 21:21:00,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 21:21:00,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:21:00,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 21:21:00,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 21:21:00,153 INFO L87 Difference]: Start difference. First operand 201 states and 206 transitions. Second operand 4 states. [2021-02-21 21:21:00,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:21:00,619 INFO L93 Difference]: Finished difference Result 300 states and 306 transitions. [2021-02-21 21:21:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 21:21:00,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2021-02-21 21:21:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:21:00,622 INFO L225 Difference]: With dead ends: 300 [2021-02-21 21:21:00,622 INFO L226 Difference]: Without dead ends: 201 [2021-02-21 21:21:00,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 21:21:00,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-02-21 21:21:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-02-21 21:21:00,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2021-02-21 21:21:00,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 204 transitions. [2021-02-21 21:21:00,674 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 204 transitions. Word has length 83 [2021-02-21 21:21:00,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:21:00,675 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 204 transitions. [2021-02-21 21:21:00,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 21:21:00,675 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 204 transitions. [2021-02-21 21:21:00,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-02-21 21:21:00,676 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:21:00,676 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] [2021-02-21 21:21:00,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-21 21:21:00,676 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:21:00,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:21:00,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1551491212, now seen corresponding path program 1 times [2021-02-21 21:21:00,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:21:00,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498817077] [2021-02-21 21:21:00,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:21:00,680 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:21:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:21:00,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:00,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:21:00,740 WARN L141 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size [2021-02-21 21:21:00,740 WARN L147 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size 3 [2021-02-21 21:21:00,747 WARN L141 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-02-21 21:21:00,748 WARN L147 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size 10 [2021-02-21 21:21:00,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:21:00,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:21:00,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:00,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:21:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:21:00,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:00,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:00,832 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 21:21:00,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498817077] [2021-02-21 21:21:00,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:21:00,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:21:00,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983703927] [2021-02-21 21:21:00,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:21:00,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:21:00,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:21:00,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:21:00,834 INFO L87 Difference]: Start difference. First operand 201 states and 204 transitions. Second operand 8 states. [2021-02-21 21:21:01,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:21:01,511 INFO L93 Difference]: Finished difference Result 201 states and 204 transitions. [2021-02-21 21:21:01,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 21:21:01,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2021-02-21 21:21:01,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:21:01,513 INFO L225 Difference]: With dead ends: 201 [2021-02-21 21:21:01,513 INFO L226 Difference]: Without dead ends: 199 [2021-02-21 21:21:01,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-02-21 21:21:01,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-02-21 21:21:01,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-02-21 21:21:01,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2021-02-21 21:21:01,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 202 transitions. [2021-02-21 21:21:01,568 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 202 transitions. Word has length 88 [2021-02-21 21:21:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:21:01,569 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 202 transitions. [2021-02-21 21:21:01,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:21:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 202 transitions. [2021-02-21 21:21:01,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-02-21 21:21:01,570 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:21:01,570 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] [2021-02-21 21:21:01,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-21 21:21:01,571 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:21:01,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:21:01,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1741429015, now seen corresponding path program 1 times [2021-02-21 21:21:01,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:21:01,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388865254] [2021-02-21 21:21:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:21:01,574 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:21:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:21:01,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:01,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:01,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:01,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:21:01,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:01,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:21:01,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:01,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:21:01,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:01,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:21:01,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:01,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:01,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:21:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:21:01,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:01,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:01,689 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 21:21:01,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388865254] [2021-02-21 21:21:01,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:21:01,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 21:21:01,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783255667] [2021-02-21 21:21:01,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 21:21:01,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:21:01,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 21:21:01,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-21 21:21:01,692 INFO L87 Difference]: Start difference. First operand 199 states and 202 transitions. Second operand 7 states. [2021-02-21 21:21:02,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:21:02,306 INFO L93 Difference]: Finished difference Result 199 states and 202 transitions. [2021-02-21 21:21:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 21:21:02,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2021-02-21 21:21:02,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:21:02,308 INFO L225 Difference]: With dead ends: 199 [2021-02-21 21:21:02,308 INFO L226 Difference]: Without dead ends: 197 [2021-02-21 21:21:02,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-02-21 21:21:02,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-02-21 21:21:02,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-02-21 21:21:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2021-02-21 21:21:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 200 transitions. [2021-02-21 21:21:02,387 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 200 transitions. Word has length 93 [2021-02-21 21:21:02,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:21:02,388 INFO L480 AbstractCegarLoop]: Abstraction has 197 states and 200 transitions. [2021-02-21 21:21:02,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 21:21:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 200 transitions. [2021-02-21 21:21:02,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-02-21 21:21:02,393 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:21:02,394 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-21 21:21:02,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-21 21:21:02,394 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:21:02,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:21:02,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1480879106, now seen corresponding path program 1 times [2021-02-21 21:21:02,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:21:02,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602247579] [2021-02-21 21:21:02,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:21:02,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:02,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:02,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:02,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:04,979 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2021-02-21 21:21:04,998 WARN L141 QuantifierPusher]: treesize reduction 126, result has 61.2 percent of original size [2021-02-21 21:21:05,042 WARN L147 QuantifierPusher]: treesize reduction 126, result has 61.2 percent of original size 199 [2021-02-21 21:21:05,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:21:05,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:21:05,450 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-21 21:21:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:21:05,475 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:21:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:21:05,496 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:21:05,587 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 21:21:05,587 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 21:21:05,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-21 21:21:05,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:21:05 BoogieIcfgContainer [2021-02-21 21:21:05,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:21:05,634 INFO L168 Benchmark]: Toolchain (without parser) took 18240.00 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 127.7 MB in the beginning and 241.1 MB in the end (delta: -113.4 MB). Peak memory consumption was 50.9 MB. Max. memory is 8.0 GB. [2021-02-21 21:21:05,641 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:21:05,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.12 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 107.6 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-02-21 21:21:05,643 INFO L168 Benchmark]: Boogie Preprocessor took 58.01 ms. Allocated memory is still 151.0 MB. Free memory was 107.6 MB in the beginning and 105.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:21:05,645 INFO L168 Benchmark]: RCFGBuilder took 874.89 ms. Allocated memory is still 151.0 MB. Free memory was 105.7 MB in the beginning and 101.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 8.0 GB. [2021-02-21 21:21:05,646 INFO L168 Benchmark]: TraceAbstraction took 16726.81 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 101.0 MB in the beginning and 241.1 MB in the end (delta: -140.2 MB). Peak memory consumption was 23.9 MB. Max. memory is 8.0 GB. [2021-02-21 21:21:05,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 557.12 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 107.6 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.01 ms. Allocated memory is still 151.0 MB. Free memory was 107.6 MB in the beginning and 105.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 874.89 ms. Allocated memory is still 151.0 MB. Free memory was 105.7 MB in the beginning and 101.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16726.81 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 101.0 MB in the beginning and 241.1 MB in the end (delta: -140.2 MB). Peak memory consumption was 23.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 374]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] int __return_main; [L12] int __return_375; [L15] int main__scheme; [L16] int main__urilen; [L17] int main__tokenlen; [L18] int main__cp; [L19] int main__c; [L20] main__urilen = __VERIFIER_nondet_int() [L21] main__tokenlen = __VERIFIER_nondet_int() [L22] main__scheme = __VERIFIER_nondet_int() [L23] COND FALSE !(!(main__urilen <= 1000000)) [L29] COND FALSE !(!(main__urilen >= -1000000)) [L35] COND FALSE !(!(main__tokenlen <= 1000000)) [L41] COND FALSE !(!(main__tokenlen >= -1000000)) [L47] COND FALSE !(!(main__scheme <= 1000000)) [L53] COND FALSE !(!(main__scheme >= -1000000)) [L59] COND TRUE main__urilen > 0 [L61] COND TRUE main__tokenlen > 0 [L63] COND TRUE main__scheme >= 0 [L65] COND FALSE !(main__scheme == 0) [L71] COND FALSE !((main__urilen - 1) < main__scheme) [L77] main__cp = main__scheme [L79] int __tmp_1; [L80] __tmp_1 = (main__cp - 1) < main__urilen [L81] int __VERIFIER_assert__cond; [L82] __VERIFIER_assert__cond = __tmp_1 [L83] COND FALSE !(__VERIFIER_assert__cond == 0) [L91] int __tmp_2; [L92] __tmp_2 = 0 <= (main__cp - 1) [L93] int __VERIFIER_assert__cond; [L94] __VERIFIER_assert__cond = __tmp_2 [L95] COND FALSE !(__VERIFIER_assert__cond == 0) [L102] int main____CPAchecker_TMP_0; [L103] main____CPAchecker_TMP_0 = __VERIFIER_nondet_int() [L104] COND TRUE !(main____CPAchecker_TMP_0 == 0) [L107] int __tmp_3; [L108] __tmp_3 = main__cp < main__urilen [L109] int __VERIFIER_assert__cond; [L110] __VERIFIER_assert__cond = __tmp_3 [L111] COND FALSE !(__VERIFIER_assert__cond == 0) [L119] int __tmp_4; [L120] __tmp_4 = 0 <= main__cp [L121] int __VERIFIER_assert__cond; [L122] __VERIFIER_assert__cond = __tmp_4 [L123] COND FALSE !(__VERIFIER_assert__cond == 0) [L131] COND TRUE main__cp != (main__urilen - 1) [L133] int main____CPAchecker_TMP_1; [L134] main____CPAchecker_TMP_1 = __VERIFIER_nondet_int() [L135] COND FALSE !(!(main____CPAchecker_TMP_1 == 0)) [L368] int __tmp_17; [L369] __tmp_17 = main__cp < main__urilen [L370] int __VERIFIER_assert__cond; [L371] __VERIFIER_assert__cond = __tmp_17 [L372] COND FALSE !(__VERIFIER_assert__cond == 0) [L380] int __tmp_18; [L381] __tmp_18 = 0 <= main__cp [L382] int __VERIFIER_assert__cond; [L383] __VERIFIER_assert__cond = __tmp_18 [L384] COND FALSE !(__VERIFIER_assert__cond == 0) [L391] main__cp = main__cp + 1 [L131] COND TRUE main__cp != (main__urilen - 1) [L133] int main____CPAchecker_TMP_1; [L134] main____CPAchecker_TMP_1 = __VERIFIER_nondet_int() [L135] COND FALSE !(!(main____CPAchecker_TMP_1 == 0)) [L368] int __tmp_17; [L369] __tmp_17 = main__cp < main__urilen [L370] int __VERIFIER_assert__cond; [L371] __VERIFIER_assert__cond = __tmp_17 [L372] COND TRUE __VERIFIER_assert__cond == 0 [L374] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.6s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2082 SDtfs, 8062 SDslu, 683 SDs, 0 SdLazy, 4802 SolverSat, 168 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 618 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...