/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 18:13:43,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 18:13:43,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 18:13:43,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 18:13:43,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 18:13:43,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 18:13:43,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 18:13:43,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 18:13:43,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 18:13:43,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 18:13:43,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 18:13:43,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 18:13:43,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 18:13:43,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 18:13:43,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 18:13:43,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 18:13:43,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 18:13:43,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 18:13:43,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 18:13:43,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 18:13:43,913 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 18:13:43,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 18:13:43,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 18:13:43,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 18:13:43,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 18:13:43,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 18:13:43,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 18:13:43,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 18:13:43,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 18:13:43,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-20 18:13:43,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 18:13:43,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 18:13:43,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 18:13:43,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 18:13:43,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 18:13:43,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 18:13:43,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 18:13:43,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 18:13:43,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 18:13:43,947 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 18:13:43,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 18:13:43,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 18:13:43,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 18:13:43,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 18:13:43,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 18:13:43,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 18:13:43,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 18:13:43,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 18:13:43,948 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 18:13:43,948 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 18:13:43,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 18:13:43,948 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-20 18:13:43,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 18:13:44,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 18:13:44,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 18:13:44,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 18:13:44,128 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 18:13:44,129 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 18:13:44,130 INFO L432 ainManager$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 [2022-03-20 18:13:44,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1d524cf1/c6601966ef0645878e4eeef6b17f4b38/FLAG9e8f4db0d [2022-03-20 18:13:44,542 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 18:13:44,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2022-03-20 18:13:44,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1d524cf1/c6601966ef0645878e4eeef6b17f4b38/FLAG9e8f4db0d [2022-03-20 18:13:44,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1d524cf1/c6601966ef0645878e4eeef6b17f4b38 [2022-03-20 18:13:44,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 18:13:44,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 18:13:44,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 18:13:44,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 18:13:44,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 18:13:44,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1054c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44, skipping insertion in model container [2022-03-20 18:13:44,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 18:13:44,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 18:13:44,754 WARN L230 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] [2022-03-20 18:13:44,756 WARN L230 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] [2022-03-20 18:13:44,757 WARN L230 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] [2022-03-20 18:13:44,758 WARN L230 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] [2022-03-20 18:13:44,760 WARN L230 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] [2022-03-20 18:13:44,761 WARN L230 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] [2022-03-20 18:13:44,762 WARN L230 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] [2022-03-20 18:13:44,763 WARN L230 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] [2022-03-20 18:13:44,765 WARN L230 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] [2022-03-20 18:13:44,766 WARN L230 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] [2022-03-20 18:13:44,768 WARN L230 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] [2022-03-20 18:13:44,769 WARN L230 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] [2022-03-20 18:13:44,770 WARN L230 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] [2022-03-20 18:13:44,771 WARN L230 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] [2022-03-20 18:13:44,772 WARN L230 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] [2022-03-20 18:13:44,773 WARN L230 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] [2022-03-20 18:13:44,775 WARN L230 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] [2022-03-20 18:13:44,775 WARN L230 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] [2022-03-20 18:13:44,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 18:13:44,799 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 18:13:44,809 WARN L230 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] [2022-03-20 18:13:44,810 WARN L230 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] [2022-03-20 18:13:44,811 WARN L230 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] [2022-03-20 18:13:44,811 WARN L230 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] [2022-03-20 18:13:44,819 WARN L230 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] [2022-03-20 18:13:44,820 WARN L230 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] [2022-03-20 18:13:44,821 WARN L230 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] [2022-03-20 18:13:44,822 WARN L230 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] [2022-03-20 18:13:44,823 WARN L230 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] [2022-03-20 18:13:44,824 WARN L230 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] [2022-03-20 18:13:44,825 WARN L230 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] [2022-03-20 18:13:44,826 WARN L230 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] [2022-03-20 18:13:44,827 WARN L230 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] [2022-03-20 18:13:44,828 WARN L230 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] [2022-03-20 18:13:44,828 WARN L230 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] [2022-03-20 18:13:44,829 WARN L230 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] [2022-03-20 18:13:44,831 WARN L230 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] [2022-03-20 18:13:44,831 WARN L230 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] [2022-03-20 18:13:44,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 18:13:44,841 INFO L208 MainTranslator]: Completed translation [2022-03-20 18:13:44,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44 WrapperNode [2022-03-20 18:13:44,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 18:13:44,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 18:13:44,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 18:13:44,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 18:13:44,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 18:13:44,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 18:13:44,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 18:13:44,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 18:13:44,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44" (1/1) ... [2022-03-20 18:13:44,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 18:13:44,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 18:13:44,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 18:13:44,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 18:13:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 18:13:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 18:13:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 18:13:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 18:13:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 18:13:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 18:13:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 18:13:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 18:13:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 18:13:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 18:13:44,989 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 18:13:44,990 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 18:13:45,201 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 18:13:45,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 18:13:45,218 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-20 18:13:45,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 06:13:45 BoogieIcfgContainer [2022-03-20 18:13:45,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 18:13:45,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 18:13:45,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 18:13:45,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 18:13:45,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 06:13:44" (1/3) ... [2022-03-20 18:13:45,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6faada96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 06:13:45, skipping insertion in model container [2022-03-20 18:13:45,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 06:13:44" (2/3) ... [2022-03-20 18:13:45,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6faada96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 06:13:45, skipping insertion in model container [2022-03-20 18:13:45,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 06:13:45" (3/3) ... [2022-03-20 18:13:45,226 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2022-03-20 18:13:45,230 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 18:13:45,231 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-03-20 18:13:45,272 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 18:13:45,278 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 18:13:45,279 INFO L341 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-03-20 18:13:45,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 64 states have (on average 1.875) internal successors, (120), 82 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 18:13:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-20 18:13:45,304 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:45,305 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 18:13:45,305 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:45,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:45,309 INFO L85 PathProgramCache]: Analyzing trace with hash 129930232, now seen corresponding path program 1 times [2022-03-20 18:13:45,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:45,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1904207318] [2022-03-20 18:13:45,326 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash 129930232, now seen corresponding path program 2 times [2022-03-20 18:13:45,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:45,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452164993] [2022-03-20 18:13:45,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:45,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:45,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:45,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452164993] [2022-03-20 18:13:45,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452164993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:45,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:45,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 18:13:45,537 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:45,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1904207318] [2022-03-20 18:13:45,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1904207318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:45,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:45,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 18:13:45,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590024096] [2022-03-20 18:13:45,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:45,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 18:13:45,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:45,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 18:13:45,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 18:13:45,570 INFO L87 Difference]: Start difference. First operand has 87 states, 64 states have (on average 1.875) internal successors, (120), 82 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:45,695 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2022-03-20 18:13:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 18:13:45,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-03-20 18:13:45,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:45,706 INFO L225 Difference]: With dead ends: 93 [2022-03-20 18:13:45,706 INFO L226 Difference]: Without dead ends: 80 [2022-03-20 18:13:45,709 INFO L912 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 [2022-03-20 18:13:45,715 INFO L913 BasicCegarLoop]: 94 mSDtfsCounter, 170 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:45,716 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 105 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:45,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-03-20 18:13:45,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-03-20 18:13:45,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 76 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:45,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2022-03-20 18:13:45,755 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2022-03-20 18:13:45,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:45,756 INFO L478 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2022-03-20 18:13:45,756 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:45,756 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2022-03-20 18:13:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-20 18:13:45,757 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:45,757 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 18:13:45,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 18:13:45,758 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:45,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:45,758 INFO L85 PathProgramCache]: Analyzing trace with hash -267127005, now seen corresponding path program 1 times [2022-03-20 18:13:45,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:45,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [822746927] [2022-03-20 18:13:45,761 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:45,761 INFO L85 PathProgramCache]: Analyzing trace with hash -267127005, now seen corresponding path program 2 times [2022-03-20 18:13:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:45,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740226013] [2022-03-20 18:13:45,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:45,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:45,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:45,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:45,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:45,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740226013] [2022-03-20 18:13:45,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740226013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:45,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:45,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 18:13:45,867 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:45,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [822746927] [2022-03-20 18:13:45,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [822746927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:45,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:45,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 18:13:45,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540559952] [2022-03-20 18:13:45,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:45,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 18:13:45,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:45,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 18:13:45,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-20 18:13:45,869 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:46,013 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2022-03-20 18:13:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 18:13:46,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-03-20 18:13:46,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:46,016 INFO L225 Difference]: With dead ends: 80 [2022-03-20 18:13:46,016 INFO L226 Difference]: Without dead ends: 78 [2022-03-20 18:13:46,017 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-20 18:13:46,021 INFO L913 BasicCegarLoop]: 57 mSDtfsCounter, 319 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:46,021 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 74 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 18:13:46,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-03-20 18:13:46,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-03-20 18:13:46,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 74 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2022-03-20 18:13:46,048 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2022-03-20 18:13:46,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:46,049 INFO L478 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2022-03-20 18:13:46,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,049 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2022-03-20 18:13:46,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-20 18:13:46,050 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:46,050 INFO L499 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] [2022-03-20 18:13:46,050 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 18:13:46,050 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:46,051 INFO L85 PathProgramCache]: Analyzing trace with hash 989082342, now seen corresponding path program 1 times [2022-03-20 18:13:46,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:46,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [158745188] [2022-03-20 18:13:46,051 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:46,052 INFO L85 PathProgramCache]: Analyzing trace with hash 989082342, now seen corresponding path program 2 times [2022-03-20 18:13:46,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:46,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401721449] [2022-03-20 18:13:46,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:46,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:46,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:46,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:46,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401721449] [2022-03-20 18:13:46,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401721449] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:46,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:46,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 18:13:46,120 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:46,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [158745188] [2022-03-20 18:13:46,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [158745188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:46,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:46,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 18:13:46,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329843649] [2022-03-20 18:13:46,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:46,121 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 18:13:46,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:46,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 18:13:46,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 18:13:46,122 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:46,289 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2022-03-20 18:13:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 18:13:46,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-03-20 18:13:46,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:46,290 INFO L225 Difference]: With dead ends: 101 [2022-03-20 18:13:46,290 INFO L226 Difference]: Without dead ends: 99 [2022-03-20 18:13:46,291 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-20 18:13:46,291 INFO L913 BasicCegarLoop]: 66 mSDtfsCounter, 207 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:46,292 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 78 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-03-20 18:13:46,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2022-03-20 18:13:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 72 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2022-03-20 18:13:46,304 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2022-03-20 18:13:46,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:46,304 INFO L478 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2022-03-20 18:13:46,304 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,304 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2022-03-20 18:13:46,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-20 18:13:46,305 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:46,305 INFO L499 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] [2022-03-20 18:13:46,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 18:13:46,305 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:46,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:46,305 INFO L85 PathProgramCache]: Analyzing trace with hash 596784644, now seen corresponding path program 1 times [2022-03-20 18:13:46,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:46,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1333072796] [2022-03-20 18:13:46,306 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:46,306 INFO L85 PathProgramCache]: Analyzing trace with hash 596784644, now seen corresponding path program 2 times [2022-03-20 18:13:46,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:46,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728510116] [2022-03-20 18:13:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:46,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:46,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:46,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728510116] [2022-03-20 18:13:46,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728510116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:46,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:46,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:46,376 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:46,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1333072796] [2022-03-20 18:13:46,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1333072796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:46,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:46,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:46,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670944582] [2022-03-20 18:13:46,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:46,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:46,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:46,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:46,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:46,378 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:46,495 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2022-03-20 18:13:46,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 18:13:46,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-03-20 18:13:46,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:46,496 INFO L225 Difference]: With dead ends: 76 [2022-03-20 18:13:46,496 INFO L226 Difference]: Without dead ends: 74 [2022-03-20 18:13:46,497 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-20 18:13:46,499 INFO L913 BasicCegarLoop]: 53 mSDtfsCounter, 234 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:46,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 70 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:46,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-03-20 18:13:46,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-03-20 18:13:46,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 70 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2022-03-20 18:13:46,526 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2022-03-20 18:13:46,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:46,526 INFO L478 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2022-03-20 18:13:46,526 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,526 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2022-03-20 18:13:46,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-20 18:13:46,527 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:46,527 INFO L499 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] [2022-03-20 18:13:46,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 18:13:46,527 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:46,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:46,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1944836287, now seen corresponding path program 1 times [2022-03-20 18:13:46,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:46,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [247981474] [2022-03-20 18:13:46,528 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:46,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1944836287, now seen corresponding path program 2 times [2022-03-20 18:13:46,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:46,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070824497] [2022-03-20 18:13:46,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:46,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:46,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:46,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:46,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:46,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070824497] [2022-03-20 18:13:46,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070824497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:46,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:46,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:46,589 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:46,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [247981474] [2022-03-20 18:13:46,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [247981474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:46,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:46,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:46,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791120859] [2022-03-20 18:13:46,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:46,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:46,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:46,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:46,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:46,591 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:46,839 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2022-03-20 18:13:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 18:13:46,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-03-20 18:13:46,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:46,840 INFO L225 Difference]: With dead ends: 141 [2022-03-20 18:13:46,840 INFO L226 Difference]: Without dead ends: 139 [2022-03-20 18:13:46,840 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-20 18:13:46,841 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 235 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:46,841 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 125 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 18:13:46,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-03-20 18:13:46,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2022-03-20 18:13:46,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 73 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-03-20 18:13:46,853 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2022-03-20 18:13:46,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:46,853 INFO L478 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-03-20 18:13:46,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:46,853 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-03-20 18:13:46,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-20 18:13:46,853 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:46,854 INFO L499 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] [2022-03-20 18:13:46,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 18:13:46,854 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:46,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:46,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1948570096, now seen corresponding path program 1 times [2022-03-20 18:13:46,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:46,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1619011587] [2022-03-20 18:13:46,855 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:46,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1948570096, now seen corresponding path program 2 times [2022-03-20 18:13:46,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:46,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293347159] [2022-03-20 18:13:46,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:46,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:46,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:46,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:46,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293347159] [2022-03-20 18:13:46,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293347159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:46,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:46,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:46,921 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:46,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1619011587] [2022-03-20 18:13:46,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1619011587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:46,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:46,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:46,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200091634] [2022-03-20 18:13:46,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:46,921 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:46,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:46,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:46,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:46,922 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:47,122 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2022-03-20 18:13:47,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 18:13:47,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-03-20 18:13:47,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:47,123 INFO L225 Difference]: With dead ends: 108 [2022-03-20 18:13:47,123 INFO L226 Difference]: Without dead ends: 106 [2022-03-20 18:13:47,123 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-20 18:13:47,124 INFO L913 BasicCegarLoop]: 64 mSDtfsCounter, 220 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:47,124 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 81 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-03-20 18:13:47,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2022-03-20 18:13:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 75 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2022-03-20 18:13:47,135 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2022-03-20 18:13:47,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:47,135 INFO L478 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2022-03-20 18:13:47,136 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,137 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2022-03-20 18:13:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-20 18:13:47,137 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:47,138 INFO L499 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] [2022-03-20 18:13:47,138 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 18:13:47,138 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash 160385998, now seen corresponding path program 1 times [2022-03-20 18:13:47,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:47,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1947533614] [2022-03-20 18:13:47,139 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash 160385998, now seen corresponding path program 2 times [2022-03-20 18:13:47,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:47,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890143026] [2022-03-20 18:13:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:47,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:47,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:47,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890143026] [2022-03-20 18:13:47,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890143026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:47,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:47,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:47,205 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:47,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1947533614] [2022-03-20 18:13:47,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1947533614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:47,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:47,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:47,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625326277] [2022-03-20 18:13:47,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:47,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:47,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:47,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:47,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:47,207 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:47,392 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2022-03-20 18:13:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 18:13:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-03-20 18:13:47,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:47,393 INFO L225 Difference]: With dead ends: 121 [2022-03-20 18:13:47,393 INFO L226 Difference]: Without dead ends: 119 [2022-03-20 18:13:47,394 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-20 18:13:47,394 INFO L913 BasicCegarLoop]: 87 mSDtfsCounter, 215 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:47,394 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 104 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-03-20 18:13:47,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2022-03-20 18:13:47,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 73 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-03-20 18:13:47,405 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2022-03-20 18:13:47,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:47,406 INFO L478 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-03-20 18:13:47,406 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-03-20 18:13:47,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-20 18:13:47,406 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:47,406 INFO L499 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] [2022-03-20 18:13:47,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 18:13:47,406 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:47,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:47,407 INFO L85 PathProgramCache]: Analyzing trace with hash 276133967, now seen corresponding path program 1 times [2022-03-20 18:13:47,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:47,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1592919590] [2022-03-20 18:13:47,407 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:47,407 INFO L85 PathProgramCache]: Analyzing trace with hash 276133967, now seen corresponding path program 2 times [2022-03-20 18:13:47,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:47,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133225753] [2022-03-20 18:13:47,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:47,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:47,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:47,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133225753] [2022-03-20 18:13:47,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133225753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:47,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:47,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:47,460 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:47,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1592919590] [2022-03-20 18:13:47,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1592919590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:47,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:47,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:47,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966315855] [2022-03-20 18:13:47,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:47,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:47,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:47,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:47,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:47,461 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:47,563 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2022-03-20 18:13:47,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 18:13:47,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-03-20 18:13:47,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:47,564 INFO L225 Difference]: With dead ends: 77 [2022-03-20 18:13:47,564 INFO L226 Difference]: Without dead ends: 75 [2022-03-20 18:13:47,564 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-20 18:13:47,564 INFO L913 BasicCegarLoop]: 53 mSDtfsCounter, 197 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:47,565 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 70 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 18:13:47,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-03-20 18:13:47,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-03-20 18:13:47,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 71 states have internal predecessors, (77), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2022-03-20 18:13:47,576 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2022-03-20 18:13:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:47,576 INFO L478 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2022-03-20 18:13:47,576 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2022-03-20 18:13:47,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-20 18:13:47,576 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:47,577 INFO L499 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] [2022-03-20 18:13:47,577 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 18:13:47,577 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:47,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:47,577 INFO L85 PathProgramCache]: Analyzing trace with hash -923129547, now seen corresponding path program 1 times [2022-03-20 18:13:47,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:47,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [637014812] [2022-03-20 18:13:47,578 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:47,578 INFO L85 PathProgramCache]: Analyzing trace with hash -923129547, now seen corresponding path program 2 times [2022-03-20 18:13:47,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:47,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326526573] [2022-03-20 18:13:47,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:47,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:47,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:47,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326526573] [2022-03-20 18:13:47,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326526573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:47,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:47,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 18:13:47,604 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:47,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [637014812] [2022-03-20 18:13:47,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [637014812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:47,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:47,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 18:13:47,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144988483] [2022-03-20 18:13:47,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:47,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 18:13:47,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:47,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 18:13:47,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 18:13:47,605 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:47,698 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2022-03-20 18:13:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 18:13:47,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-03-20 18:13:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:47,704 INFO L225 Difference]: With dead ends: 115 [2022-03-20 18:13:47,704 INFO L226 Difference]: Without dead ends: 75 [2022-03-20 18:13:47,704 INFO L912 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 [2022-03-20 18:13:47,705 INFO L913 BasicCegarLoop]: 71 mSDtfsCounter, 71 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:47,705 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 78 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:47,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-03-20 18:13:47,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-03-20 18:13:47,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.25) internal successors, (75), 71 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2022-03-20 18:13:47,716 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2022-03-20 18:13:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:47,716 INFO L478 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2022-03-20 18:13:47,716 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2022-03-20 18:13:47,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 18:13:47,717 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:47,717 INFO L499 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] [2022-03-20 18:13:47,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 18:13:47,717 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:47,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:47,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1988983653, now seen corresponding path program 1 times [2022-03-20 18:13:47,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:47,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [50887352] [2022-03-20 18:13:47,718 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:47,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1988983653, now seen corresponding path program 2 times [2022-03-20 18:13:47,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:47,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854516361] [2022-03-20 18:13:47,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:47,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:47,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:47,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854516361] [2022-03-20 18:13:47,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854516361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:47,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:47,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:47,776 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:47,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [50887352] [2022-03-20 18:13:47,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [50887352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:47,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:47,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:47,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777240883] [2022-03-20 18:13:47,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:47,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:47,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:47,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:47,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:47,778 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:47,874 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2022-03-20 18:13:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 18:13:47,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-20 18:13:47,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:47,875 INFO L225 Difference]: With dead ends: 76 [2022-03-20 18:13:47,875 INFO L226 Difference]: Without dead ends: 74 [2022-03-20 18:13:47,876 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-03-20 18:13:47,876 INFO L913 BasicCegarLoop]: 50 mSDtfsCounter, 183 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:47,877 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 62 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 18:13:47,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-03-20 18:13:47,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2022-03-20 18:13:47,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 69 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2022-03-20 18:13:47,897 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2022-03-20 18:13:47,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:47,897 INFO L478 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2022-03-20 18:13:47,897 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:47,897 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2022-03-20 18:13:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 18:13:47,900 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:47,901 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 18:13:47,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 18:13:47,901 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:47,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:47,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2054875672, now seen corresponding path program 1 times [2022-03-20 18:13:47,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:47,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1106601367] [2022-03-20 18:13:47,902 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:47,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2054875672, now seen corresponding path program 2 times [2022-03-20 18:13:47,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:47,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959145683] [2022-03-20 18:13:47,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:47,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:47,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 18:13:47,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:47,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959145683] [2022-03-20 18:13:47,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959145683] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 18:13:47,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077398627] [2022-03-20 18:13:47,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 18:13:47,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 18:13:47,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 18:13:47,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 18:13:47,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 18:13:47,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 18:13:47,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 18:13:47,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-20 18:13:47,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 18:13:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 18:13:48,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 18:13:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 18:13:48,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077398627] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 18:13:48,171 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 18:13:48,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2022-03-20 18:13:48,171 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:48,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1106601367] [2022-03-20 18:13:48,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1106601367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:48,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:48,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:48,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104119908] [2022-03-20 18:13:48,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:48,172 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:48,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:48,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:48,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 18:13:48,172 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:48,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:48,318 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2022-03-20 18:13:48,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 18:13:48,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-20 18:13:48,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:48,320 INFO L225 Difference]: With dead ends: 111 [2022-03-20 18:13:48,320 INFO L226 Difference]: Without dead ends: 109 [2022-03-20 18:13:48,321 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-20 18:13:48,321 INFO L913 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:48,321 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 92 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:48,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-03-20 18:13:48,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2022-03-20 18:13:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 66 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2022-03-20 18:13:48,339 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2022-03-20 18:13:48,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:48,339 INFO L478 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2022-03-20 18:13:48,339 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:48,339 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2022-03-20 18:13:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-20 18:13:48,340 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:48,340 INFO L499 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] [2022-03-20 18:13:48,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 18:13:48,551 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-20 18:13:48,552 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:48,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1528947946, now seen corresponding path program 1 times [2022-03-20 18:13:48,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:48,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1599157894] [2022-03-20 18:13:48,552 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:48,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1528947946, now seen corresponding path program 2 times [2022-03-20 18:13:48,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:48,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444797635] [2022-03-20 18:13:48,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:48,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:48,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:48,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444797635] [2022-03-20 18:13:48,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444797635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:48,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:48,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:48,594 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:48,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1599157894] [2022-03-20 18:13:48,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1599157894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:48,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:48,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:48,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640467012] [2022-03-20 18:13:48,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:48,594 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:48,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:48,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:48,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:48,595 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:48,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:48,665 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-03-20 18:13:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 18:13:48,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-03-20 18:13:48,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:48,666 INFO L225 Difference]: With dead ends: 70 [2022-03-20 18:13:48,666 INFO L226 Difference]: Without dead ends: 68 [2022-03-20 18:13:48,666 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-20 18:13:48,667 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 170 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:48,667 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 60 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 18:13:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-03-20 18:13:48,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-03-20 18:13:48,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 64 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:48,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2022-03-20 18:13:48,685 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2022-03-20 18:13:48,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:48,686 INFO L478 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2022-03-20 18:13:48,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2022-03-20 18:13:48,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-20 18:13:48,688 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:48,689 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 18:13:48,689 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 18:13:48,689 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:48,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:48,689 INFO L85 PathProgramCache]: Analyzing trace with hash -726812143, now seen corresponding path program 1 times [2022-03-20 18:13:48,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:48,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [726637810] [2022-03-20 18:13:48,690 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:48,690 INFO L85 PathProgramCache]: Analyzing trace with hash -726812143, now seen corresponding path program 2 times [2022-03-20 18:13:48,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:48,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870638215] [2022-03-20 18:13:48,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:48,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:48,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:48,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 18:13:48,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:48,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870638215] [2022-03-20 18:13:48,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870638215] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 18:13:48,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280901890] [2022-03-20 18:13:48,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 18:13:48,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 18:13:48,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 18:13:48,776 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 18:13:48,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 18:13:48,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 18:13:48,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 18:13:48,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-20 18:13:48,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 18:13:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 18:13:48,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 18:13:48,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 18:13:48,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280901890] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 18:13:48,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 18:13:48,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2022-03-20 18:13:48,936 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:48,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [726637810] [2022-03-20 18:13:48,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [726637810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:48,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:48,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:48,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163407541] [2022-03-20 18:13:48,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:48,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:48,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:48,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:48,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 18:13:48,938 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:49,016 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2022-03-20 18:13:49,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 18:13:49,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-03-20 18:13:49,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:49,017 INFO L225 Difference]: With dead ends: 69 [2022-03-20 18:13:49,017 INFO L226 Difference]: Without dead ends: 67 [2022-03-20 18:13:49,017 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-20 18:13:49,018 INFO L913 BasicCegarLoop]: 44 mSDtfsCounter, 130 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:49,018 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 61 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 18:13:49,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-03-20 18:13:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2022-03-20 18:13:49,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.196078431372549) internal successors, (61), 58 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2022-03-20 18:13:49,034 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2022-03-20 18:13:49,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:49,034 INFO L478 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2022-03-20 18:13:49,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,034 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2022-03-20 18:13:49,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-03-20 18:13:49,035 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:49,035 INFO L499 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] [2022-03-20 18:13:49,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 18:13:49,251 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-20 18:13:49,252 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:49,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash -756981884, now seen corresponding path program 1 times [2022-03-20 18:13:49,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [266467098] [2022-03-20 18:13:49,253 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:49,253 INFO L85 PathProgramCache]: Analyzing trace with hash -756981884, now seen corresponding path program 2 times [2022-03-20 18:13:49,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:49,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238780182] [2022-03-20 18:13:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:49,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:49,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:49,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238780182] [2022-03-20 18:13:49,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238780182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:49,297 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:49,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [266467098] [2022-03-20 18:13:49,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [266467098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:49,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462948496] [2022-03-20 18:13:49,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:49,298 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:49,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:49,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:49,298 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:49,372 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2022-03-20 18:13:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 18:13:49,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-03-20 18:13:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:49,373 INFO L225 Difference]: With dead ends: 63 [2022-03-20 18:13:49,373 INFO L226 Difference]: Without dead ends: 61 [2022-03-20 18:13:49,373 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-03-20 18:13:49,373 INFO L913 BasicCegarLoop]: 42 mSDtfsCounter, 119 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:49,374 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 59 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 18:13:49,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-03-20 18:13:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-03-20 18:13:49,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.18) internal successors, (59), 56 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2022-03-20 18:13:49,385 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2022-03-20 18:13:49,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:49,385 INFO L478 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2022-03-20 18:13:49,385 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,385 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2022-03-20 18:13:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-20 18:13:49,385 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:49,385 INFO L499 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] [2022-03-20 18:13:49,385 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 18:13:49,385 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:49,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:49,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1991598751, now seen corresponding path program 1 times [2022-03-20 18:13:49,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [920217336] [2022-03-20 18:13:49,386 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:49,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1991598751, now seen corresponding path program 2 times [2022-03-20 18:13:49,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:49,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415005415] [2022-03-20 18:13:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:49,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:49,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:49,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415005415] [2022-03-20 18:13:49,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415005415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 18:13:49,431 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:49,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [920217336] [2022-03-20 18:13:49,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [920217336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 18:13:49,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622125460] [2022-03-20 18:13:49,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:49,432 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 18:13:49,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 18:13:49,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-20 18:13:49,432 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:49,532 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2022-03-20 18:13:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 18:13:49,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-03-20 18:13:49,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:49,532 INFO L225 Difference]: With dead ends: 71 [2022-03-20 18:13:49,532 INFO L226 Difference]: Without dead ends: 69 [2022-03-20 18:13:49,534 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-20 18:13:49,535 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 153 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:49,535 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 62 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:49,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-03-20 18:13:49,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2022-03-20 18:13:49,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.163265306122449) internal successors, (57), 54 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2022-03-20 18:13:49,546 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2022-03-20 18:13:49,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:49,546 INFO L478 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2022-03-20 18:13:49,546 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2022-03-20 18:13:49,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-03-20 18:13:49,547 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:49,548 INFO L499 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] [2022-03-20 18:13:49,548 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 18:13:49,556 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:49,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1037071699, now seen corresponding path program 1 times [2022-03-20 18:13:49,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [771136269] [2022-03-20 18:13:49,559 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:49,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1037071699, now seen corresponding path program 2 times [2022-03-20 18:13:49,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:49,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699024446] [2022-03-20 18:13:49,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:49,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:49,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:49,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699024446] [2022-03-20 18:13:49,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699024446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:49,603 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:49,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [771136269] [2022-03-20 18:13:49,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [771136269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:49,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136262802] [2022-03-20 18:13:49,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:49,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:49,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:49,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:49,605 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:49,753 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2022-03-20 18:13:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 18:13:49,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-03-20 18:13:49,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:49,754 INFO L225 Difference]: With dead ends: 91 [2022-03-20 18:13:49,754 INFO L226 Difference]: Without dead ends: 89 [2022-03-20 18:13:49,754 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-20 18:13:49,754 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 178 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:49,754 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 60 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:49,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-03-20 18:13:49,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2022-03-20 18:13:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 57 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2022-03-20 18:13:49,768 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2022-03-20 18:13:49,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:49,768 INFO L478 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2022-03-20 18:13:49,768 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,768 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2022-03-20 18:13:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-20 18:13:49,768 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:49,768 INFO L499 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] [2022-03-20 18:13:49,768 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 18:13:49,769 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr11ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:49,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2084448405, now seen corresponding path program 1 times [2022-03-20 18:13:49,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1752772099] [2022-03-20 18:13:49,769 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2084448405, now seen corresponding path program 2 times [2022-03-20 18:13:49,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:49,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217120600] [2022-03-20 18:13:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:49,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:49,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:49,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217120600] [2022-03-20 18:13:49,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217120600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:49,844 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:49,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1752772099] [2022-03-20 18:13:49,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1752772099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:49,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603484309] [2022-03-20 18:13:49,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:49,845 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:49,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:49,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:49,845 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:49,940 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2022-03-20 18:13:49,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 18:13:49,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-03-20 18:13:49,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:49,941 INFO L225 Difference]: With dead ends: 61 [2022-03-20 18:13:49,941 INFO L226 Difference]: Without dead ends: 59 [2022-03-20 18:13:49,942 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-20 18:13:49,942 INFO L913 BasicCegarLoop]: 50 mSDtfsCounter, 110 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:49,942 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 67 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 18:13:49,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-03-20 18:13:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-03-20 18:13:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 55 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2022-03-20 18:13:49,953 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2022-03-20 18:13:49,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:49,953 INFO L478 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2022-03-20 18:13:49,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:49,954 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2022-03-20 18:13:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-03-20 18:13:49,954 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:49,954 INFO L499 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] [2022-03-20 18:13:49,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 18:13:49,954 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr12ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:49,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:49,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1700057906, now seen corresponding path program 1 times [2022-03-20 18:13:49,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1755743252] [2022-03-20 18:13:49,955 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:49,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1700057906, now seen corresponding path program 2 times [2022-03-20 18:13:49,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:49,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209097998] [2022-03-20 18:13:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:49,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:49,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:49,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209097998] [2022-03-20 18:13:49,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209097998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 18:13:49,982 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:49,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1755743252] [2022-03-20 18:13:49,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1755743252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:49,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:49,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 18:13:49,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42621597] [2022-03-20 18:13:49,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:49,982 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 18:13:49,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:49,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 18:13:49,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 18:13:49,983 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:50,072 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-03-20 18:13:50,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 18:13:50,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-03-20 18:13:50,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:50,073 INFO L225 Difference]: With dead ends: 70 [2022-03-20 18:13:50,073 INFO L226 Difference]: Without dead ends: 68 [2022-03-20 18:13:50,073 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-20 18:13:50,074 INFO L913 BasicCegarLoop]: 65 mSDtfsCounter, 74 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:50,074 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 77 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:50,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-03-20 18:13:50,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2022-03-20 18:13:50,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.12) internal successors, (56), 53 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2022-03-20 18:13:50,088 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 41 [2022-03-20 18:13:50,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:50,088 INFO L478 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2022-03-20 18:13:50,088 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,088 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2022-03-20 18:13:50,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-20 18:13:50,088 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:50,088 INFO L499 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] [2022-03-20 18:13:50,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 18:13:50,090 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:50,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:50,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1162184327, now seen corresponding path program 1 times [2022-03-20 18:13:50,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:50,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2043480981] [2022-03-20 18:13:50,090 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:50,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1162184327, now seen corresponding path program 2 times [2022-03-20 18:13:50,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:50,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656296508] [2022-03-20 18:13:50,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:50,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:50,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:50,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:50,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656296508] [2022-03-20 18:13:50,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656296508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:50,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:50,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:50,133 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:50,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2043480981] [2022-03-20 18:13:50,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2043480981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:50,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:50,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:50,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811164673] [2022-03-20 18:13:50,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:50,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:50,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:50,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:50,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:50,134 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:50,256 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2022-03-20 18:13:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 18:13:50,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-20 18:13:50,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:50,257 INFO L225 Difference]: With dead ends: 66 [2022-03-20 18:13:50,257 INFO L226 Difference]: Without dead ends: 64 [2022-03-20 18:13:50,258 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 18:13:50,258 INFO L913 BasicCegarLoop]: 57 mSDtfsCounter, 91 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:50,258 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 74 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:50,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-03-20 18:13:50,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2022-03-20 18:13:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 51 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2022-03-20 18:13:50,277 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 42 [2022-03-20 18:13:50,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:50,277 INFO L478 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2022-03-20 18:13:50,278 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,278 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2022-03-20 18:13:50,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-20 18:13:50,278 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:50,278 INFO L499 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] [2022-03-20 18:13:50,278 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 18:13:50,279 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:50,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:50,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1667972556, now seen corresponding path program 1 times [2022-03-20 18:13:50,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:50,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [738944912] [2022-03-20 18:13:50,280 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:50,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1667972556, now seen corresponding path program 2 times [2022-03-20 18:13:50,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:50,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771154575] [2022-03-20 18:13:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:50,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:50,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:50,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:50,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:50,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771154575] [2022-03-20 18:13:50,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771154575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:50,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:50,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:50,331 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:50,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [738944912] [2022-03-20 18:13:50,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [738944912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:50,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:50,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:50,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535747149] [2022-03-20 18:13:50,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:50,331 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:50,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:50,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:50,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:50,332 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:50,551 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2022-03-20 18:13:50,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 18:13:50,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-20 18:13:50,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:50,552 INFO L225 Difference]: With dead ends: 88 [2022-03-20 18:13:50,552 INFO L226 Difference]: Without dead ends: 86 [2022-03-20 18:13:50,553 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-20 18:13:50,553 INFO L913 BasicCegarLoop]: 45 mSDtfsCounter, 123 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:50,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 62 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:50,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-03-20 18:13:50,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 60. [2022-03-20 18:13:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 56 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2022-03-20 18:13:50,574 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 43 [2022-03-20 18:13:50,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:50,574 INFO L478 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-03-20 18:13:50,574 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,574 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2022-03-20 18:13:50,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-20 18:13:50,575 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:50,575 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 18:13:50,575 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 18:13:50,575 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:50,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:50,575 INFO L85 PathProgramCache]: Analyzing trace with hash 651621684, now seen corresponding path program 1 times [2022-03-20 18:13:50,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:50,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1304831327] [2022-03-20 18:13:50,576 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:50,576 INFO L85 PathProgramCache]: Analyzing trace with hash 651621684, now seen corresponding path program 2 times [2022-03-20 18:13:50,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:50,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138265657] [2022-03-20 18:13:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:50,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:50,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:50,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:50,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138265657] [2022-03-20 18:13:50,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138265657] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 18:13:50,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041776723] [2022-03-20 18:13:50,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 18:13:50,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 18:13:50,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 18:13:50,625 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 18:13:50,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 18:13:50,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 18:13:50,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 18:13:50,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-20 18:13:50,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 18:13:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:50,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 18:13:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:50,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041776723] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 18:13:50,853 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 18:13:50,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2022-03-20 18:13:50,855 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:50,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1304831327] [2022-03-20 18:13:50,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1304831327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:50,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:50,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:50,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864778646] [2022-03-20 18:13:50,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:50,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:50,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:50,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:50,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 18:13:50,856 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:50,938 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2022-03-20 18:13:50,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 18:13:50,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-20 18:13:50,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:50,939 INFO L225 Difference]: With dead ends: 60 [2022-03-20 18:13:50,939 INFO L226 Difference]: Without dead ends: 58 [2022-03-20 18:13:50,940 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 7 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-20 18:13:50,940 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 84 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:50,941 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 49 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 18:13:50,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-03-20 18:13:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-03-20 18:13:50,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 54 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2022-03-20 18:13:50,954 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 44 [2022-03-20 18:13:50,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:50,954 INFO L478 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2022-03-20 18:13:50,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2022-03-20 18:13:50,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-20 18:13:50,955 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:50,955 INFO L499 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] [2022-03-20 18:13:50,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-20 18:13:51,171 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 18:13:51,172 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:51,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:51,172 INFO L85 PathProgramCache]: Analyzing trace with hash -167538465, now seen corresponding path program 1 times [2022-03-20 18:13:51,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:51,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [614902075] [2022-03-20 18:13:51,172 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:51,172 INFO L85 PathProgramCache]: Analyzing trace with hash -167538465, now seen corresponding path program 2 times [2022-03-20 18:13:51,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:51,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007809063] [2022-03-20 18:13:51,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:51,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:51,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 18:13:51,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:51,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007809063] [2022-03-20 18:13:51,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007809063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:51,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:51,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:51,237 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:51,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [614902075] [2022-03-20 18:13:51,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [614902075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:51,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:51,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:51,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794413224] [2022-03-20 18:13:51,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:51,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:51,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:51,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:51,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:51,238 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:51,362 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2022-03-20 18:13:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 18:13:51,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-20 18:13:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:51,364 INFO L225 Difference]: With dead ends: 69 [2022-03-20 18:13:51,364 INFO L226 Difference]: Without dead ends: 67 [2022-03-20 18:13:51,364 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-20 18:13:51,364 INFO L913 BasicCegarLoop]: 48 mSDtfsCounter, 73 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:51,364 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 65 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:51,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-03-20 18:13:51,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 56. [2022-03-20 18:13:51,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.0769230769230769) internal successors, (56), 52 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2022-03-20 18:13:51,377 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 44 [2022-03-20 18:13:51,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:51,377 INFO L478 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2022-03-20 18:13:51,377 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:51,377 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2022-03-20 18:13:51,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 18:13:51,377 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 18:13:51,377 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 18:13:51,377 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 18:13:51,378 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-20 18:13:51,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 18:13:51,378 INFO L85 PathProgramCache]: Analyzing trace with hash -799157235, now seen corresponding path program 1 times [2022-03-20 18:13:51,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:51,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [281002615] [2022-03-20 18:13:51,378 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 18:13:51,378 INFO L85 PathProgramCache]: Analyzing trace with hash -799157235, now seen corresponding path program 2 times [2022-03-20 18:13:51,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 18:13:51,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517701343] [2022-03-20 18:13:51,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 18:13:51,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 18:13:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:51,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 18:13:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 18:13:51,420 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 18:13:51,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 18:13:51,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517701343] [2022-03-20 18:13:51,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517701343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:51,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:51,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:51,420 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 18:13:51,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [281002615] [2022-03-20 18:13:51,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [281002615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 18:13:51,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 18:13:51,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 18:13:51,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693651053] [2022-03-20 18:13:51,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 18:13:51,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 18:13:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 18:13:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 18:13:51,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 18:13:51,421 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 18:13:51,599 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2022-03-20 18:13:51,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 18:13:51,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-20 18:13:51,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 18:13:51,600 INFO L225 Difference]: With dead ends: 75 [2022-03-20 18:13:51,600 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 18:13:51,600 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-03-20 18:13:51,601 INFO L913 BasicCegarLoop]: 38 mSDtfsCounter, 88 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 18:13:51,601 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 55 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 18:13:51,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 18:13:51,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 18:13:51,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-20 18:13:51,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 18:13:51,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2022-03-20 18:13:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 18:13:51,602 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 18:13:51,602 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 18:13:51,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 18:13:51,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 18:13:51,604 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 18 remaining) [2022-03-20 18:13:51,604 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (16 of 18 remaining) [2022-03-20 18:13:51,604 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (15 of 18 remaining) [2022-03-20 18:13:51,604 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONERROR_FUNCTION (14 of 18 remaining) [2022-03-20 18:13:51,604 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONERROR_FUNCTION (13 of 18 remaining) [2022-03-20 18:13:51,604 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONERROR_FUNCTION (12 of 18 remaining) [2022-03-20 18:13:51,604 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONERROR_FUNCTION (11 of 18 remaining) [2022-03-20 18:13:51,604 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONERROR_FUNCTION (10 of 18 remaining) [2022-03-20 18:13:51,604 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONERROR_FUNCTION (9 of 18 remaining) [2022-03-20 18:13:51,605 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONERROR_FUNCTION (8 of 18 remaining) [2022-03-20 18:13:51,605 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONERROR_FUNCTION (7 of 18 remaining) [2022-03-20 18:13:51,605 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONERROR_FUNCTION (6 of 18 remaining) [2022-03-20 18:13:51,605 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONERROR_FUNCTION (5 of 18 remaining) [2022-03-20 18:13:51,605 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONERROR_FUNCTION (4 of 18 remaining) [2022-03-20 18:13:51,605 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONERROR_FUNCTION (3 of 18 remaining) [2022-03-20 18:13:51,605 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONERROR_FUNCTION (2 of 18 remaining) [2022-03-20 18:13:51,605 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONERROR_FUNCTION (1 of 18 remaining) [2022-03-20 18:13:51,605 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONERROR_FUNCTION (0 of 18 remaining) [2022-03-20 18:13:51,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 18:13:51,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-20 18:14:28,235 WARN L232 SmtUtils]: Spent 22.09s on a formula simplification. DAG size of input: 130 DAG size of output: 125 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-03-20 18:14:38,649 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2022-03-20 18:14:38,650 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2022-03-20 18:14:38,650 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2022-03-20 18:14:38,650 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2022-03-20 18:14:38,650 INFO L882 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-03-20 18:14:38,650 INFO L882 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2022-03-20 18:14:38,650 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2022-03-20 18:14:38,650 INFO L878 garLoopResultBuilder]: At program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 125) the Hoare annotation is: false [2022-03-20 18:14:38,650 INFO L878 garLoopResultBuilder]: At program point mainEXIT(lines 13 439) the Hoare annotation is: (or (not (= main_~__VERIFIER_assert__cond~0 0)) (= |old(~__return_375~0)| ~__return_375~0)) [2022-03-20 18:14:38,650 INFO L878 garLoopResultBuilder]: At program point L374(line 374) the Hoare annotation is: false [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: false [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L308(line 308) the Hoare annotation is: false [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L143(lines 143 362) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~4 0)) (= main_~__VERIFIER_assert__cond~3 1) (not (<= main_~main__urilen~0 main_~main__cp~0)) (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (= |old(~__return_375~0)| ~__return_375~0)) (.cse4 (<= 1 main_~main__cp~0)) (.cse5 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 .cse2 .cse3 (= main_~__VERIFIER_assert__cond~2 1) .cse4 .cse5) (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse3 .cse4 .cse5)))) [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L234(lines 234 338) the Hoare annotation is: (let ((.cse2 (= main_~__VERIFIER_assert__cond~9 1)) (.cse3 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse4 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse5 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse6 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse7 (= main_~__VERIFIER_assert__cond~3 1)) (.cse8 (= |old(~__return_375~0)| ~__return_375~0)) (.cse0 (= main_~main__c~0 0)) (.cse16 (< (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse11 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse12 (< 0 main_~main__scheme~0)) (.cse13 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse14 (<= 1 main_~main__cp~0)) (.cse15 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and (let ((.cse1 (let ((.cse9 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse10 (not (= main_~__VERIFIER_assert__cond~11 0)))) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= (+ 2 main_~main__c~0) main_~main__tokenlen~0)))))) (or (and .cse0 .cse1) (and (not (= main_~__VERIFIER_assert__cond~13 0)) (<= 1 main_~main__c~0) .cse1))) (not (= main_~__VERIFIER_assert__cond~10 0)) .cse16) (and .cse2 .cse3 (= main_~__VERIFIER_assert__cond~8 1) .cse4 .cse5 .cse6 .cse7 .cse8 .cse0 .cse16 .cse11 .cse12 .cse13 .cse14 .cse15))) [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 255) the Hoare annotation is: false [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L135(lines 135 397) the Hoare annotation is: (and (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (= main_~__VERIFIER_assert__cond~3 1)) (.cse4 (<= 1 main_~main__cp~0)) (.cse5 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~17 0)) .cse2 .cse3 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 (= main_~__VERIFIER_assert__cond~2 1) .cse4 .cse5))) (= |old(~__return_375~0)| ~__return_375~0) (< (+ main_~main__cp~0 1) main_~main__urilen~0)) [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: false [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L61(lines 61 427) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L284(line 284) the Hoare annotation is: false [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 177) the Hoare annotation is: false [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L53(lines 53 433) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L243(line 243) the Hoare annotation is: false [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L177(line 177) the Hoare annotation is: false [2022-03-20 18:14:38,651 INFO L878 garLoopResultBuilder]: At program point L111(lines 111 405) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0) (= |old(~__return_375~0)| ~__return_375~0) (= main_~__VERIFIER_assert__cond~2 1) (< 0 main_~main__scheme~0) (<= 1 main_~main__cp~0)) [2022-03-20 18:14:38,652 INFO L878 garLoopResultBuilder]: At program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 296) the Hoare annotation is: false [2022-03-20 18:14:38,652 INFO L878 garLoopResultBuilder]: At program point L392(lines 129 403) the Hoare annotation is: (and (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (= main_~__VERIFIER_assert__cond~3 1)) (.cse4 (<= 1 main_~main__cp~0)) (.cse5 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~17 0)) .cse2 .cse3 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 (= main_~__VERIFIER_assert__cond~2 1) .cse4 .cse5))) (< main_~main__cp~0 main_~main__urilen~0) (= |old(~__return_375~0)| ~__return_375~0)) [2022-03-20 18:14:38,652 INFO L878 garLoopResultBuilder]: At program point L194(lines 194 354) the Hoare annotation is: (and (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (<= 1 main_~main__cp~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~2 1) .cse3 .cse4) (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse3 .cse4))) (not (= main_~__VERIFIER_assert__cond~4 0)) (not (= main_~__VERIFIER_assert__cond~7 0)) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (not (= main_~__VERIFIER_assert__cond~6 0))) [2022-03-20 18:14:38,652 INFO L878 garLoopResultBuilder]: At program point L384(lines 384 393) the Hoare annotation is: (and (not (<= main_~main__scheme~0 0)) (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~17 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (not (= main_~__VERIFIER_assert__cond~16 0)) (= |old(~__return_375~0)| ~__return_375~0) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~2 0))) [2022-03-20 18:14:38,652 INFO L878 garLoopResultBuilder]: At program point L95(lines 95 412) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0) (= |old(~__return_375~0)| ~__return_375~0) (< 0 main_~main__scheme~0) (<= 1 main_~main__cp~0)) [2022-03-20 18:14:38,652 INFO L878 garLoopResultBuilder]: At program point L29(lines 29 437) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,652 INFO L878 garLoopResultBuilder]: At program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) the Hoare annotation is: false [2022-03-20 18:14:38,652 INFO L878 garLoopResultBuilder]: At program point L145(line 145) the Hoare annotation is: false [2022-03-20 18:14:38,652 INFO L878 garLoopResultBuilder]: At program point L401(lines 131 402) the Hoare annotation is: (and (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (<= 1 main_~main__cp~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~2 1) .cse3 .cse4) (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse3 .cse4))) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (not (<= main_~main__urilen~0 main_~main__cp~0))) [2022-03-20 18:14:38,653 INFO L878 garLoopResultBuilder]: At program point mainFINAL(lines 13 439) the Hoare annotation is: (or (not (= main_~__VERIFIER_assert__cond~0 0)) (= |old(~__return_375~0)| ~__return_375~0)) [2022-03-20 18:14:38,653 INFO L878 garLoopResultBuilder]: At program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 284) the Hoare annotation is: false [2022-03-20 18:14:38,653 INFO L878 garLoopResultBuilder]: At program point L104(lines 104 411) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0) (= |old(~__return_375~0)| ~__return_375~0) (< 0 main_~main__scheme~0) (<= 1 main_~main__cp~0)) [2022-03-20 18:14:38,653 INFO L878 garLoopResultBuilder]: At program point L71(lines 71 416) the Hoare annotation is: (and (= |old(~__return_375~0)| ~__return_375~0) (< 0 main_~main__scheme~0)) [2022-03-20 18:14:38,653 INFO L878 garLoopResultBuilder]: At program point L327(lines 262 328) the Hoare annotation is: (and (let ((.cse0 (let ((.cse1 (= main_~__VERIFIER_assert__cond~9 1)) (.cse2 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse4 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse5 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse6 (= main_~__VERIFIER_assert__cond~3 1)) (.cse7 (not (= main_~__VERIFIER_assert__cond~9 0))) (.cse8 (= |old(~__return_375~0)| ~__return_375~0)) (.cse9 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse10 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse11 (< (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse12 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse13 (< 0 main_~main__scheme~0)) (.cse14 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse15 (<= 1 main_~main__cp~0)) (.cse16 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 (<= (+ 2 main_~main__c~0) main_~main__tokenlen~0)))))) (or (and (= main_~main__c~0 0) .cse0) (and (not (= main_~__VERIFIER_assert__cond~13 0)) (<= 1 main_~main__c~0) .cse0))) (= main_~__VERIFIER_assert__cond~10 1)) [2022-03-20 18:14:38,653 INFO L878 garLoopResultBuilder]: At program point L294(lines 294 318) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~9 1) (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (not (= main_~__VERIFIER_assert__cond~4 0)) (not (= main_~__VERIFIER_assert__cond~7 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (not (= main_~__VERIFIER_assert__cond~14 0)) (= |old(~__return_375~0)| ~__return_375~0) (<= 1 main_~main__c~0) (not (= main_~__VERIFIER_assert__cond~12 0)) (not (= main_~__VERIFIER_assert__cond~8 0)) (not (= main_~__VERIFIER_assert__cond~11 0)) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (< 0 main_~main__scheme~0) (= main_~__VERIFIER_assert__cond~10 1) (not (= main_~__VERIFIER_assert__cond~6 0)) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~2 0))) [2022-03-20 18:14:38,653 INFO L878 garLoopResultBuilder]: At program point L162(lines 162 359) the Hoare annotation is: (let ((.cse0 (let ((.cse6 (not (<= main_~main__scheme~0 0))) (.cse7 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse8 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse9 (<= 1 main_~main__cp~0)) (.cse10 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse6 .cse7 .cse8 (= main_~__VERIFIER_assert__cond~2 1) (not (<= main_~main__urilen~0 main_~main__cp~0)) .cse9 .cse10) (and .cse6 .cse7 .cse8 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse9 .cse10)))) (.cse2 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse3 (= main_~__VERIFIER_assert__cond~3 1)) (.cse4 (= |old(~__return_375~0)| ~__return_375~0)) (.cse1 (+ main_~main__cp~0 1)) (.cse5 (not (= main_~__VERIFIER_assert__cond~5 0)))) (or (and .cse0 (= main_~main__urilen~0 .cse1) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (< .cse1 main_~main__urilen~0) .cse5))) [2022-03-20 18:14:38,653 INFO L878 garLoopResultBuilder]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 85) the Hoare annotation is: false [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point L63(lines 63 422) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 13 439) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point L253(lines 253 329) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~10 1) (let ((.cse0 (= main_~__VERIFIER_assert__cond~9 1)) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse5 (= main_~__VERIFIER_assert__cond~3 1)) (.cse6 (= |old(~__return_375~0)| ~__return_375~0)) (.cse7 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse8 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse9 (< (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse10 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse11 (< 0 main_~main__scheme~0)) (.cse12 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse13 (<= 1 main_~main__cp~0)) (.cse14 (not (= main_~__VERIFIER_assert__cond~2 0))) (.cse15 (<= (+ 2 main_~main__c~0) main_~main__tokenlen~0))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~13 0)) .cse2 .cse3 .cse4 .cse5 .cse6 (<= 1 main_~main__c~0) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= main_~main__c~0 0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15)))) [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point L187(lines 187 355) the Hoare annotation is: (and (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (<= 1 main_~main__cp~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~2 1) .cse3 .cse4) (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse3 .cse4))) (not (= main_~__VERIFIER_assert__cond~4 0)) (not (= main_~__VERIFIER_assert__cond~7 0)) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (not (= main_~__VERIFIER_assert__cond~6 0))) [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point L410(lines 104 411) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (= |old(~__return_375~0)| ~__return_375~0)) [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point L212(lines 212 346) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~1 0)) (= main_~__VERIFIER_assert__cond~8 1) (not (= main_~__VERIFIER_assert__cond~4 0)) (not (= main_~__VERIFIER_assert__cond~7 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (= main_~main__c~0 0) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (< 0 main_~main__scheme~0) (not (= main_~__VERIFIER_assert__cond~6 0)) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~2 0))) [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point L113(line 113) the Hoare annotation is: false [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point L47(lines 47 434) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point L270(lines 270 322) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~9 1) (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~4 0)) (not (= main_~__VERIFIER_assert__cond~7 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (<= 1 main_~main__c~0) (not (= main_~__VERIFIER_assert__cond~12 0)) (not (= main_~__VERIFIER_assert__cond~8 0)) (not (= main_~__VERIFIER_assert__cond~11 0)) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (< 0 main_~main__scheme~0) (= main_~__VERIFIER_assert__cond~10 1) (not (= main_~__VERIFIER_assert__cond~6 0)) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~2 0))) [2022-03-20 18:14:38,654 INFO L878 garLoopResultBuilder]: At program point L204(lines 204 353) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~4 0)) (not (= main_~__VERIFIER_assert__cond~7 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (< 0 main_~main__scheme~0) (not (= main_~__VERIFIER_assert__cond~6 0)) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~2 0))) [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 214) the Hoare annotation is: false [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 374) the Hoare annotation is: false [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point L262(lines 262 328) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~10 1) (let ((.cse0 (= main_~__VERIFIER_assert__cond~9 1)) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse5 (= main_~__VERIFIER_assert__cond~3 1)) (.cse6 (= |old(~__return_375~0)| ~__return_375~0)) (.cse7 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse8 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse9 (< (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse10 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse11 (< 0 main_~main__scheme~0)) (.cse12 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse13 (<= 1 main_~main__cp~0)) (.cse14 (not (= main_~__VERIFIER_assert__cond~2 0))) (.cse15 (<= (+ 2 main_~main__c~0) main_~main__tokenlen~0))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~13 0)) .cse2 .cse3 .cse4 .cse5 .cse6 (<= 1 main_~main__c~0) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= main_~main__c~0 0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15)))) [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point L386(line 386) the Hoare annotation is: false [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: false [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point L155(lines 155 360) the Hoare annotation is: (let ((.cse0 (let ((.cse6 (not (<= main_~main__scheme~0 0))) (.cse7 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse8 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse9 (<= 1 main_~main__cp~0)) (.cse10 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse6 .cse7 .cse8 (= main_~__VERIFIER_assert__cond~2 1) (not (<= main_~main__urilen~0 main_~main__cp~0)) .cse9 .cse10) (and .cse6 .cse7 .cse8 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse9 .cse10)))) (.cse2 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse3 (= main_~__VERIFIER_assert__cond~3 1)) (.cse4 (= |old(~__return_375~0)| ~__return_375~0)) (.cse1 (+ main_~main__cp~0 1)) (.cse5 (not (= main_~__VERIFIER_assert__cond~5 0)))) (or (and .cse0 (= main_~main__urilen~0 .cse1) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse4 (< .cse1 main_~main__urilen~0) .cse5))) [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 189) the Hoare annotation is: false [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point L23(lines 23 438) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 308) the Hoare annotation is: false [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point L296(line 296) the Hoare annotation is: false [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point L65(lines 65 417) the Hoare annotation is: (and (<= 0 main_~main__scheme~0) (= |old(~__return_375~0)| ~__return_375~0)) [2022-03-20 18:14:38,655 INFO L878 garLoopResultBuilder]: At program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 113) the Hoare annotation is: false [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point L255(line 255) the Hoare annotation is: false [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point L189(line 189) the Hoare annotation is: false [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point L123(lines 123 403) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (<= (+ main_~main__cp~0 1) main_~main__urilen~0) (= |old(~__return_375~0)| ~__return_375~0) (= main_~__VERIFIER_assert__cond~2 1) (< 0 main_~main__scheme~0) (<= 1 main_~main__cp~0)) [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point L214(line 214) the Hoare annotation is: false [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: false [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 243) the Hoare annotation is: false [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point L41(lines 41 435) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 97) the Hoare annotation is: false [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point L157(line 157) the Hoare annotation is: false [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point L372(lines 372 395) the Hoare annotation is: (and (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (= main_~__VERIFIER_assert__cond~3 1)) (.cse4 (not (= main_~__VERIFIER_assert__cond~16 0))) (.cse5 (<= 1 main_~main__cp~0)) (.cse6 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~17 0)) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= main_~__VERIFIER_assert__cond~2 1) .cse5 .cse6))) (= |old(~__return_375~0)| ~__return_375~0) (< (+ main_~main__cp~0 1) main_~main__urilen~0)) [2022-03-20 18:14:38,656 INFO L878 garLoopResultBuilder]: At program point L83(lines 83 414) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0) (= |old(~__return_375~0)| ~__return_375~0) (< 0 main_~main__scheme~0) (<= 1 main_~main__cp~0)) [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point L306(lines 306 316) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~9 1) (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (not (= main_~__VERIFIER_assert__cond~4 0)) (not (= main_~__VERIFIER_assert__cond~7 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (not (= main_~__VERIFIER_assert__cond~14 0)) (= |old(~__return_375~0)| ~__return_375~0) (<= 1 main_~main__c~0) (not (= main_~__VERIFIER_assert__cond~12 0)) (not (= main_~__VERIFIER_assert__cond~8 0)) (not (= main_~__VERIFIER_assert__cond~11 0)) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (< 0 main_~main__scheme~0) (= main_~__VERIFIER_assert__cond~10 1) (not (= main_~__VERIFIER_assert__cond~6 0)) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~2 0)) (not (= main_~__VERIFIER_assert__cond~15 0))) [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 226) the Hoare annotation is: false [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 386) the Hoare annotation is: false [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point L224(lines 224 344) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~9 1) (not (= main_~__VERIFIER_assert__cond~1 0)) (= main_~__VERIFIER_assert__cond~8 1) (not (= main_~__VERIFIER_assert__cond~4 0)) (not (= main_~__VERIFIER_assert__cond~7 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (= main_~main__c~0 0) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (< 0 main_~main__scheme~0) (not (= main_~__VERIFIER_assert__cond~6 0)) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~2 0))) [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point L125(line 125) the Hoare annotation is: false [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) the Hoare annotation is: false [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point L59(lines 59 432) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point L315(lines 230 344) the Hoare annotation is: (let ((.cse9 (= main_~main__c~0 0)) (.cse0 (= main_~__VERIFIER_assert__cond~9 1)) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse5 (< main_~main__cp~0 main_~main__urilen~0)) (.cse6 (= main_~__VERIFIER_assert__cond~3 1)) (.cse7 (= |old(~__return_375~0)| ~__return_375~0)) (.cse8 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse10 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse11 (< 0 main_~main__scheme~0)) (.cse12 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse13 (<= 1 main_~main__cp~0)) (.cse14 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 (= main_~__VERIFIER_assert__cond~8 1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (< (+ main_~main__cp~0 1) main_~main__urilen~0) .cse10 .cse11 .cse12 .cse13 .cse14) (and (let ((.cse15 (let ((.cse16 (not (= main_~__VERIFIER_assert__cond~11 0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse8 .cse16 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse16 .cse10 .cse11 .cse12 .cse13 .cse14 (<= (+ 2 main_~main__c~0) main_~main__tokenlen~0)))))) (or (and (not (= main_~__VERIFIER_assert__cond~13 0)) (<= 1 main_~main__c~0) .cse15) (and .cse9 .cse15))) (not (= main_~__VERIFIER_assert__cond~10 0))))) [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point L282(lines 282 320) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~9 1) (not (= main_~__VERIFIER_assert__cond~1 0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (not (= main_~__VERIFIER_assert__cond~4 0)) (not (= main_~__VERIFIER_assert__cond~7 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (<= 1 main_~main__c~0) (not (= main_~__VERIFIER_assert__cond~12 0)) (not (= main_~__VERIFIER_assert__cond~8 0)) (not (= main_~__VERIFIER_assert__cond~11 0)) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (< 0 main_~main__scheme~0) (= main_~__VERIFIER_assert__cond~10 1) (not (= main_~__VERIFIER_assert__cond~6 0)) (<= 1 main_~main__cp~0) (not (= main_~__VERIFIER_assert__cond~2 0))) [2022-03-20 18:14:38,657 INFO L878 garLoopResultBuilder]: At program point L241(lines 241 331) the Hoare annotation is: (let ((.cse14 (let ((.cse18 (<= main_~main__urilen~0 main_~main__cp~0))) (or (and (= main_~__VERIFIER_assert__cond~10 0) .cse18) (and (= main_~__VERIFIER_assert__cond~10 1) (not .cse18))))) (.cse0 (= main_~__VERIFIER_assert__cond~9 1)) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse5 (= main_~__VERIFIER_assert__cond~3 1)) (.cse6 (= |old(~__return_375~0)| ~__return_375~0)) (.cse7 (= main_~main__c~0 0)) (.cse8 (< (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse9 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse10 (< 0 main_~main__scheme~0)) (.cse11 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse12 (<= 1 main_~main__cp~0)) (.cse13 (not (= main_~__VERIFIER_assert__cond~2 0))) (.cse15 (<= (+ 2 main_~main__c~0) main_~main__tokenlen~0))) (or (and .cse0 .cse1 (= main_~__VERIFIER_assert__cond~8 1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse14 (let ((.cse16 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse17 (not (= main_~__VERIFIER_assert__cond~11 0)))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~13 0)) .cse2 .cse3 .cse4 .cse5 .cse6 (<= 1 main_~main__c~0) .cse16 .cse17 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse16 .cse17 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15)))))) [2022-03-20 18:14:38,658 INFO L878 garLoopResultBuilder]: At program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 272) the Hoare annotation is: false [2022-03-20 18:14:38,658 INFO L878 garLoopResultBuilder]: At program point L175(lines 175 357) the Hoare annotation is: (and (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (<= 1 main_~main__cp~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~2 1) .cse3 .cse4) (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse3 .cse4))) (not (= main_~__VERIFIER_assert__cond~4 0)) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (< (+ main_~main__cp~0 1) main_~main__urilen~0) (not (= main_~__VERIFIER_assert__cond~5 0)) (not (= main_~__VERIFIER_assert__cond~6 0))) [2022-03-20 18:14:38,658 INFO L878 garLoopResultBuilder]: At program point L35(lines 35 436) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-20 18:14:38,658 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-03-20 18:14:38,658 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_375~0)| ~__return_375~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-20 18:14:38,658 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-03-20 18:14:38,658 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-20 18:14:38,658 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-20 18:14:38,658 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-20 18:14:38,658 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-20 18:14:38,661 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-03-20 18:14:38,662 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 18:14:38,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 06:14:38 BoogieIcfgContainer [2022-03-20 18:14:38,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 18:14:38,679 INFO L158 Benchmark]: Toolchain (without parser) took 54114.95ms. Allocated memory was 203.4MB in the beginning and 576.7MB in the end (delta: 373.3MB). Free memory was 153.9MB in the beginning and 240.5MB in the end (delta: -86.6MB). Peak memory consumption was 325.3MB. Max. memory is 8.0GB. [2022-03-20 18:14:38,679 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory was 170.5MB in the beginning and 170.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 18:14:38,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.23ms. Allocated memory is still 203.4MB. Free memory was 153.8MB in the beginning and 170.0MB in the end (delta: -16.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-20 18:14:38,679 INFO L158 Benchmark]: Boogie Preprocessor took 32.14ms. Allocated memory is still 203.4MB. Free memory was 170.0MB in the beginning and 168.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 18:14:38,680 INFO L158 Benchmark]: RCFGBuilder took 344.53ms. Allocated memory is still 203.4MB. Free memory was 168.5MB in the beginning and 152.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-20 18:14:38,680 INFO L158 Benchmark]: TraceAbstraction took 53457.33ms. Allocated memory was 203.4MB in the beginning and 576.7MB in the end (delta: 373.3MB). Free memory was 152.2MB in the beginning and 240.5MB in the end (delta: -88.3MB). Peak memory consumption was 324.8MB. Max. memory is 8.0GB. [2022-03-20 18:14:38,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory was 170.5MB in the beginning and 170.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 276.23ms. Allocated memory is still 203.4MB. Free memory was 153.8MB in the beginning and 170.0MB in the end (delta: -16.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.14ms. Allocated memory is still 203.4MB. Free memory was 170.0MB in the beginning and 168.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 344.53ms. Allocated memory is still 203.4MB. Free memory was 168.5MB in the beginning and 152.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 53457.33ms. Allocated memory was 203.4MB in the beginning and 576.7MB in the end (delta: 373.3MB). Free memory was 152.2MB in the beginning and 240.5MB in the end (delta: -88.3MB). Peak memory consumption was 324.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 85]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 97]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 113]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 189]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 214]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 226]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 243]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 255]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 272]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 284]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 296]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 308]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 374]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 386]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 94 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 53.4s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 47.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3590 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3590 mSDsluCounter, 1690 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 365 mSDsCounter, 187 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2538 IncrementalHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 187 mSolverCounterUnsat, 1325 mSDtfsCounter, 2538 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 461 GetRequests, 269 SyntacticMatches, 18 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 153, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 296 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 87 LocationsWithAnnotation, 87 PreInvPairs, 140 NumberOfFragments, 2985 HoareAnnotationTreeSize, 87 FomulaSimplifications, 286041 FormulaSimplificationTreeSizeReduction, 44.0s HoareSimplificationTime, 87 FomulaSimplificationsInter, 619907 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, 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 - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 262]: Loop Invariant Derived loop invariant: ((main__c == 0 && (((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && 2 + main__c <= main__tokenlen))) || ((!(__VERIFIER_assert__cond == 0) && 1 <= main__c) && (((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && 2 + main__c <= main__tokenlen)))) && __VERIFIER_assert__cond == 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: (((((((((!(main__scheme <= 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((((!(main__scheme <= 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0))) && main__cp < main__urilen) && \old(__return_375) == __return_375 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((((((!(main__scheme <= 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || (((((!(main__scheme <= 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0))) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(main__urilen <= main__cp) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) && \old(__return_375) == __return_375 - InvariantResult [Line: 230]: Loop Invariant Derived loop invariant: ((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((!(__VERIFIER_assert__cond == 0) && 1 <= main__c) && ((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || (((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && 2 + main__c <= main__tokenlen))) || (main__c == 0 && ((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || (((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && 2 + main__c <= main__tokenlen)))) && !(__VERIFIER_assert__cond == 0)) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: !(__VERIFIER_assert__cond == 0) || \old(__return_375) == __return_375 RESULT: Ultimate proved your program to be correct! [2022-03-20 18:14:38,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...