/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:59:57,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:59:57,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:59:57,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:59:57,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:59:57,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:59:57,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:59:57,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:59:57,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:59:57,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:59:57,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:59:57,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:59:57,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:59:57,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:59:57,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:59:57,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:59:57,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:59:57,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:59:57,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:59:57,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:59:57,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:59:57,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:59:57,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:59:57,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:59:57,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 17:59:57,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:59:57,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:59:57,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:59:57,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 17:59:57,895 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:59:57,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:59:57,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:59:57,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:59:57,897 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:59:57,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:59:57,898 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:59:57,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:59:57,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:59:57,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:59:57,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:59:57,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:59:57,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:59:57,900 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:59:57,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:59:57,901 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:59:57,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:59:57,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:59:57,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:59:57,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:59:57,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:59:57,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:59:57,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:59:57,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:59:57,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:59:57,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:59:57,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:59:57,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:59:57,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:59:58,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:59:58,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:59:58,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:59:58,375 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:59:58,375 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:59:58,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2021-02-19 17:59:58,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d7a7962/2756d66dde974583b23c3bf1ec584e1c/FLAG5328977ac [2021-02-19 17:59:59,116 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:59:59,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2021-02-19 17:59:59,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d7a7962/2756d66dde974583b23c3bf1ec584e1c/FLAG5328977ac [2021-02-19 17:59:59,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d7a7962/2756d66dde974583b23c3bf1ec584e1c [2021-02-19 17:59:59,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:59:59,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:59:59,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:59:59,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:59:59,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:59:59,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:59:59" (1/1) ... [2021-02-19 17:59:59,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c321ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59, skipping insertion in model container [2021-02-19 17:59:59,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:59:59" (1/1) ... [2021-02-19 17:59:59,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:59:59,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:59:59,704 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1066,1079] [2021-02-19 17:59:59,709 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1266,1279] [2021-02-19 17:59:59,713 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1613,1626] [2021-02-19 17:59:59,715 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1813,1826] [2021-02-19 17:59:59,717 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2024,2037] [2021-02-19 17:59:59,719 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2224,2237] [2021-02-19 17:59:59,723 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2629,2642] [2021-02-19 17:59:59,725 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2829,2842] [2021-02-19 17:59:59,727 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3040,3053] [2021-02-19 17:59:59,729 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3243,3256] [2021-02-19 17:59:59,733 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3583,3596] [2021-02-19 17:59:59,735 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3786,3799] [2021-02-19 17:59:59,737 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2021-02-19 17:59:59,739 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4203,4216] [2021-02-19 17:59:59,742 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4547,4560] [2021-02-19 17:59:59,744 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4750,4763] [2021-02-19 17:59:59,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:59:59,759 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:59:59,777 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1066,1079] [2021-02-19 17:59:59,778 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1266,1279] [2021-02-19 17:59:59,781 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1613,1626] [2021-02-19 17:59:59,782 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[1813,1826] [2021-02-19 17:59:59,784 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2024,2037] [2021-02-19 17:59:59,785 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2224,2237] [2021-02-19 17:59:59,788 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2629,2642] [2021-02-19 17:59:59,790 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[2829,2842] [2021-02-19 17:59:59,791 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3040,3053] [2021-02-19 17:59:59,793 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3243,3256] [2021-02-19 17:59:59,795 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3583,3596] [2021-02-19 17:59:59,797 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3786,3799] [2021-02-19 17:59:59,798 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2021-02-19 17:59:59,800 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4203,4216] [2021-02-19 17:59:59,802 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4547,4560] [2021-02-19 17:59:59,804 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4750,4763] [2021-02-19 17:59:59,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:59:59,824 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:59:59,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59 WrapperNode [2021-02-19 17:59:59,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:59:59,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:59:59,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:59:59,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:59:59,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59" (1/1) ... [2021-02-19 17:59:59,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59" (1/1) ... [2021-02-19 17:59:59,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59" (1/1) ... [2021-02-19 17:59:59,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59" (1/1) ... [2021-02-19 17:59:59,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59" (1/1) ... [2021-02-19 17:59:59,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59" (1/1) ... [2021-02-19 17:59:59,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59" (1/1) ... [2021-02-19 17:59:59,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:59:59,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:59:59,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:59:59,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:59:59,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:59:59,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:59:59,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:59:59,966 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:59:59,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-19 17:59:59,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:59:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:59:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:59:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:59:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:59:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-19 17:59:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-19 17:59:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:59:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:59:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:59:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:59:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:59:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:59:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:59:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 18:00:00,585 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 18:00:00,585 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 18:00:00,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:00:00 BoogieIcfgContainer [2021-02-19 18:00:00,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 18:00:00,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 18:00:00,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 18:00:00,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 18:00:00,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:59:59" (1/3) ... [2021-02-19 18:00:00,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac19c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:00:00, skipping insertion in model container [2021-02-19 18:00:00,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:59:59" (2/3) ... [2021-02-19 18:00:00,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac19c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:00:00, skipping insertion in model container [2021-02-19 18:00:00,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:00:00" (3/3) ... [2021-02-19 18:00:00,603 INFO L111 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2021-02-19 18:00:00,612 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 18:00:00,618 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2021-02-19 18:00:00,639 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-02-19 18:00:00,685 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 18:00:00,685 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 18:00:00,686 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 18:00:00,686 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 18:00:00,687 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 18:00:00,688 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 18:00:00,688 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 18:00:00,689 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 18:00:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2021-02-19 18:00:00,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-02-19 18:00:00,738 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:00,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:00,740 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:00,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:00,749 INFO L82 PathProgramCache]: Analyzing trace with hash -189701311, now seen corresponding path program 1 times [2021-02-19 18:00:00,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:00,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940956523] [2021-02-19 18:00:00,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:01,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:01,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:01,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:01,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940956523] [2021-02-19 18:00:01,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:01,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 18:00:01,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223337975] [2021-02-19 18:00:01,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 18:00:01,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:01,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 18:00:01,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 18:00:01,168 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2021-02-19 18:00:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:01,323 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2021-02-19 18:00:01,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:00:01,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-02-19 18:00:01,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:01,337 INFO L225 Difference]: With dead ends: 90 [2021-02-19 18:00:01,338 INFO L226 Difference]: Without dead ends: 76 [2021-02-19 18:00:01,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:00:01,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-02-19 18:00:01,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2021-02-19 18:00:01,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-02-19 18:00:01,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2021-02-19 18:00:01,392 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 13 [2021-02-19 18:00:01,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:01,393 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2021-02-19 18:00:01,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 18:00:01,393 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2021-02-19 18:00:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-19 18:00:01,394 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:01,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:01,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 18:00:01,395 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:01,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:01,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1582601500, now seen corresponding path program 1 times [2021-02-19 18:00:01,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:01,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068435484] [2021-02-19 18:00:01,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:01,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:01,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:01,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:01,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:01,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068435484] [2021-02-19 18:00:01,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:01,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 18:00:01,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726569622] [2021-02-19 18:00:01,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:00:01,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:01,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:00:01,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:00:01,514 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2021-02-19 18:00:01,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:01,877 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2021-02-19 18:00:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 18:00:01,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-02-19 18:00:01,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:01,879 INFO L225 Difference]: With dead ends: 153 [2021-02-19 18:00:01,879 INFO L226 Difference]: Without dead ends: 101 [2021-02-19 18:00:01,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-19 18:00:01,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-02-19 18:00:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 58. [2021-02-19 18:00:01,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-02-19 18:00:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-02-19 18:00:01,894 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 14 [2021-02-19 18:00:01,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:01,894 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-02-19 18:00:01,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 18:00:01,894 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-02-19 18:00:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-19 18:00:01,895 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:01,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:01,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 18:00:01,896 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:01,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:01,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1585770269, now seen corresponding path program 1 times [2021-02-19 18:00:01,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:01,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610135040] [2021-02-19 18:00:01,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:01,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,957 WARN L141 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-02-19 18:00:01,958 WARN L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-02-19 18:00:01,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:01,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:01,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:01,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:02,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:02,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610135040] [2021-02-19 18:00:02,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:02,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 18:00:02,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213290470] [2021-02-19 18:00:02,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:00:02,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:02,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:00:02,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:00:02,014 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 5 states. [2021-02-19 18:00:02,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:02,179 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2021-02-19 18:00:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:00:02,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-02-19 18:00:02,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:02,181 INFO L225 Difference]: With dead ends: 75 [2021-02-19 18:00:02,181 INFO L226 Difference]: Without dead ends: 73 [2021-02-19 18:00:02,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:00:02,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-02-19 18:00:02,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2021-02-19 18:00:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-02-19 18:00:02,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-02-19 18:00:02,191 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 14 [2021-02-19 18:00:02,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:02,191 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-02-19 18:00:02,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 18:00:02,191 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-02-19 18:00:02,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-19 18:00:02,192 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:02,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:02,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 18:00:02,193 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:02,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:02,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1816003151, now seen corresponding path program 1 times [2021-02-19 18:00:02,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:02,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830534377] [2021-02-19 18:00:02,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:02,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,237 WARN L141 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-02-19 18:00:02,238 WARN L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-02-19 18:00:02,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:02,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:02,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:02,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830534377] [2021-02-19 18:00:02,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:02,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 18:00:02,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436930509] [2021-02-19 18:00:02,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:00:02,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:02,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:00:02,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:00:02,286 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2021-02-19 18:00:02,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:02,506 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2021-02-19 18:00:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:00:02,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-02-19 18:00:02,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:02,508 INFO L225 Difference]: With dead ends: 96 [2021-02-19 18:00:02,508 INFO L226 Difference]: Without dead ends: 94 [2021-02-19 18:00:02,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:00:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-02-19 18:00:02,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 54. [2021-02-19 18:00:02,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-02-19 18:00:02,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2021-02-19 18:00:02,518 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 15 [2021-02-19 18:00:02,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:02,519 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2021-02-19 18:00:02,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 18:00:02,519 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2021-02-19 18:00:02,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-19 18:00:02,520 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:02,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:02,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 18:00:02,520 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:02,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:02,521 INFO L82 PathProgramCache]: Analyzing trace with hash -461519734, now seen corresponding path program 1 times [2021-02-19 18:00:02,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:02,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24300205] [2021-02-19 18:00:02,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:02,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:02,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:02,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:02,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:02,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:02,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:02,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24300205] [2021-02-19 18:00:02,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:02,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 18:00:02,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32775495] [2021-02-19 18:00:02,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:00:02,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:02,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:00:02,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:00:02,608 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 6 states. [2021-02-19 18:00:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:02,911 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2021-02-19 18:00:02,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 18:00:02,912 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-02-19 18:00:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:02,913 INFO L225 Difference]: With dead ends: 95 [2021-02-19 18:00:02,914 INFO L226 Difference]: Without dead ends: 93 [2021-02-19 18:00:02,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:00:02,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-02-19 18:00:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 52. [2021-02-19 18:00:02,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-02-19 18:00:02,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2021-02-19 18:00:02,923 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 16 [2021-02-19 18:00:02,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:02,923 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2021-02-19 18:00:02,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 18:00:02,923 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2021-02-19 18:00:02,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-19 18:00:02,924 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:02,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:02,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 18:00:02,925 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:02,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:02,925 INFO L82 PathProgramCache]: Analyzing trace with hash 788286019, now seen corresponding path program 1 times [2021-02-19 18:00:02,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:02,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613343401] [2021-02-19 18:00:02,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:02,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:02,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:02,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:02,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:02,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:03,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:03,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613343401] [2021-02-19 18:00:03,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:03,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 18:00:03,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974816657] [2021-02-19 18:00:03,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:00:03,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:03,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:00:03,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:00:03,006 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 5 states. [2021-02-19 18:00:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:03,237 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2021-02-19 18:00:03,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 18:00:03,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2021-02-19 18:00:03,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:03,239 INFO L225 Difference]: With dead ends: 69 [2021-02-19 18:00:03,239 INFO L226 Difference]: Without dead ends: 67 [2021-02-19 18:00:03,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-19 18:00:03,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-02-19 18:00:03,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2021-02-19 18:00:03,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-02-19 18:00:03,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2021-02-19 18:00:03,248 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 16 [2021-02-19 18:00:03,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:03,249 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2021-02-19 18:00:03,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 18:00:03,249 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2021-02-19 18:00:03,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-19 18:00:03,250 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:03,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:03,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 18:00:03,250 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:03,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:03,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1422206761, now seen corresponding path program 1 times [2021-02-19 18:00:03,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:03,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984879796] [2021-02-19 18:00:03,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:03,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:03,295 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-19 18:00:03,296 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-19 18:00:03,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:03,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:03,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:03,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:03,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:03,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984879796] [2021-02-19 18:00:03,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:03,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 18:00:03,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725084238] [2021-02-19 18:00:03,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:00:03,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:03,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:00:03,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:00:03,343 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 5 states. [2021-02-19 18:00:03,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:03,571 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2021-02-19 18:00:03,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:00:03,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-02-19 18:00:03,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:03,574 INFO L225 Difference]: With dead ends: 91 [2021-02-19 18:00:03,574 INFO L226 Difference]: Without dead ends: 89 [2021-02-19 18:00:03,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:00:03,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-02-19 18:00:03,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 48. [2021-02-19 18:00:03,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-02-19 18:00:03,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-02-19 18:00:03,591 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 17 [2021-02-19 18:00:03,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:03,592 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-02-19 18:00:03,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 18:00:03,592 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-02-19 18:00:03,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-19 18:00:03,593 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:03,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:03,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-19 18:00:03,593 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:03,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:03,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1332934067, now seen corresponding path program 1 times [2021-02-19 18:00:03,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:03,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486014143] [2021-02-19 18:00:03,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:03,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:03,659 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-19 18:00:03,659 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-19 18:00:03,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:00:03,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:03,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:03,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:03,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:03,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:03,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486014143] [2021-02-19 18:00:03,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:03,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 18:00:03,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703743865] [2021-02-19 18:00:03,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:00:03,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:03,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:00:03,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:00:03,722 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 6 states. [2021-02-19 18:00:04,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:04,029 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2021-02-19 18:00:04,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 18:00:04,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-02-19 18:00:04,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:04,031 INFO L225 Difference]: With dead ends: 73 [2021-02-19 18:00:04,031 INFO L226 Difference]: Without dead ends: 71 [2021-02-19 18:00:04,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:00:04,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-02-19 18:00:04,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2021-02-19 18:00:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-02-19 18:00:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-02-19 18:00:04,039 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2021-02-19 18:00:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:04,039 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-02-19 18:00:04,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 18:00:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-02-19 18:00:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-02-19 18:00:04,040 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:04,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:04,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-19 18:00:04,041 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:04,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:04,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1628720009, now seen corresponding path program 1 times [2021-02-19 18:00:04,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:04,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509256254] [2021-02-19 18:00:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:04,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:04,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:04,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:04,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:04,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:04,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:04,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:04,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:04,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:04,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509256254] [2021-02-19 18:00:04,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:04,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 18:00:04,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130905333] [2021-02-19 18:00:04,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:00:04,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:04,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:00:04,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:00:04,129 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 6 states. [2021-02-19 18:00:04,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:04,404 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2021-02-19 18:00:04,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 18:00:04,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-02-19 18:00:04,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:04,408 INFO L225 Difference]: With dead ends: 61 [2021-02-19 18:00:04,408 INFO L226 Difference]: Without dead ends: 59 [2021-02-19 18:00:04,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:00:04,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-02-19 18:00:04,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 44. [2021-02-19 18:00:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-02-19 18:00:04,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-02-19 18:00:04,416 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 18 [2021-02-19 18:00:04,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:04,416 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-02-19 18:00:04,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 18:00:04,417 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-02-19 18:00:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-19 18:00:04,417 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:04,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:04,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-19 18:00:04,418 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:04,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:04,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1049284141, now seen corresponding path program 1 times [2021-02-19 18:00:04,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:04,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789409283] [2021-02-19 18:00:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:04,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:04,447 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-19 18:00:04,447 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-19 18:00:04,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:04,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:04,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:04,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:04,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789409283] [2021-02-19 18:00:04,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:04,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 18:00:04,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601400766] [2021-02-19 18:00:04,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:00:04,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:04,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:00:04,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:00:04,493 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2021-02-19 18:00:04,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:04,666 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2021-02-19 18:00:04,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:00:04,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2021-02-19 18:00:04,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:04,667 INFO L225 Difference]: With dead ends: 61 [2021-02-19 18:00:04,667 INFO L226 Difference]: Without dead ends: 59 [2021-02-19 18:00:04,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:00:04,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-02-19 18:00:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 42. [2021-02-19 18:00:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-02-19 18:00:04,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-02-19 18:00:04,675 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 19 [2021-02-19 18:00:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:04,675 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-02-19 18:00:04,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 18:00:04,676 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-02-19 18:00:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-19 18:00:04,676 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:04,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:04,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-19 18:00:04,677 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:04,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:04,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1831933135, now seen corresponding path program 1 times [2021-02-19 18:00:04,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:04,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3793111] [2021-02-19 18:00:04,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:04,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:04,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:04,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:04,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:04,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:04,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:04,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:04,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3793111] [2021-02-19 18:00:04,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:04,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 18:00:04,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136294052] [2021-02-19 18:00:04,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:00:04,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:04,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:00:04,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:00:04,759 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2021-02-19 18:00:05,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:05,011 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2021-02-19 18:00:05,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 18:00:05,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2021-02-19 18:00:05,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:05,013 INFO L225 Difference]: With dead ends: 69 [2021-02-19 18:00:05,013 INFO L226 Difference]: Without dead ends: 67 [2021-02-19 18:00:05,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-19 18:00:05,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-02-19 18:00:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 40. [2021-02-19 18:00:05,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-02-19 18:00:05,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-02-19 18:00:05,021 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 20 [2021-02-19 18:00:05,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:05,022 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-02-19 18:00:05,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 18:00:05,022 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2021-02-19 18:00:05,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-02-19 18:00:05,023 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:05,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:05,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-19 18:00:05,023 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:05,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:05,024 INFO L82 PathProgramCache]: Analyzing trace with hash 955355481, now seen corresponding path program 1 times [2021-02-19 18:00:05,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:05,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085442706] [2021-02-19 18:00:05,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:05,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:05,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:00:05,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:00:05,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:05,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:05,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:05,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:05,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085442706] [2021-02-19 18:00:05,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:05,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 18:00:05,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989068335] [2021-02-19 18:00:05,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:00:05,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:05,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:00:05,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:00:05,145 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 6 states. [2021-02-19 18:00:05,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:05,525 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2021-02-19 18:00:05,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 18:00:05,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2021-02-19 18:00:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:05,528 INFO L225 Difference]: With dead ends: 74 [2021-02-19 18:00:05,528 INFO L226 Difference]: Without dead ends: 72 [2021-02-19 18:00:05,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:00:05,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-02-19 18:00:05,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 38. [2021-02-19 18:00:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-19 18:00:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2021-02-19 18:00:05,536 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 21 [2021-02-19 18:00:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:05,536 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-02-19 18:00:05,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 18:00:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2021-02-19 18:00:05,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-19 18:00:05,537 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:05,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:05,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-19 18:00:05,538 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:05,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:05,538 INFO L82 PathProgramCache]: Analyzing trace with hash -448748011, now seen corresponding path program 1 times [2021-02-19 18:00:05,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:05,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374268950] [2021-02-19 18:00:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:05,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:05,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:05,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:05,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:05,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:05,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:05,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:05,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:05,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:05,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374268950] [2021-02-19 18:00:05,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:05,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-19 18:00:05,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910394927] [2021-02-19 18:00:05,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 18:00:05,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:05,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 18:00:05,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:00:05,632 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 7 states. [2021-02-19 18:00:06,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:06,021 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2021-02-19 18:00:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:00:06,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2021-02-19 18:00:06,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:06,023 INFO L225 Difference]: With dead ends: 62 [2021-02-19 18:00:06,023 INFO L226 Difference]: Without dead ends: 60 [2021-02-19 18:00:06,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-02-19 18:00:06,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-02-19 18:00:06,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 36. [2021-02-19 18:00:06,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-02-19 18:00:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2021-02-19 18:00:06,030 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 22 [2021-02-19 18:00:06,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:06,031 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-02-19 18:00:06,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-19 18:00:06,031 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2021-02-19 18:00:06,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-02-19 18:00:06,032 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:06,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:06,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-19 18:00:06,032 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:06,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:06,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1026283297, now seen corresponding path program 1 times [2021-02-19 18:00:06,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:06,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493544843] [2021-02-19 18:00:06,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:06,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:06,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:00:06,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:00:06,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:06,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:06,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:06,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:06,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:06,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493544843] [2021-02-19 18:00:06,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:06,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 18:00:06,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925225696] [2021-02-19 18:00:06,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:00:06,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:06,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:00:06,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:00:06,137 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2021-02-19 18:00:06,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:06,541 INFO L93 Difference]: Finished difference Result 87 states and 101 transitions. [2021-02-19 18:00:06,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 18:00:06,542 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2021-02-19 18:00:06,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:06,543 INFO L225 Difference]: With dead ends: 87 [2021-02-19 18:00:06,543 INFO L226 Difference]: Without dead ends: 85 [2021-02-19 18:00:06,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:00:06,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-02-19 18:00:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 34. [2021-02-19 18:00:06,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-02-19 18:00:06,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2021-02-19 18:00:06,551 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 23 [2021-02-19 18:00:06,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:06,551 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2021-02-19 18:00:06,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 18:00:06,551 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2021-02-19 18:00:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-19 18:00:06,552 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:06,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:06,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-19 18:00:06,553 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:06,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1750007973, now seen corresponding path program 1 times [2021-02-19 18:00:06,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:06,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129012758] [2021-02-19 18:00:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:06,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:06,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:06,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:06,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:00:06,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:06,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:06,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:06,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:06,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:06,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129012758] [2021-02-19 18:00:06,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:06,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-19 18:00:06,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661063328] [2021-02-19 18:00:06,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 18:00:06,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:06,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 18:00:06,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:00:06,659 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 7 states. [2021-02-19 18:00:07,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:07,012 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2021-02-19 18:00:07,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:00:07,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2021-02-19 18:00:07,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:07,013 INFO L225 Difference]: With dead ends: 60 [2021-02-19 18:00:07,013 INFO L226 Difference]: Without dead ends: 58 [2021-02-19 18:00:07,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-02-19 18:00:07,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-02-19 18:00:07,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 32. [2021-02-19 18:00:07,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-02-19 18:00:07,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-02-19 18:00:07,037 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2021-02-19 18:00:07,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:07,038 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-02-19 18:00:07,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-19 18:00:07,038 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2021-02-19 18:00:07,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-19 18:00:07,038 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:00:07,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:00:07,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-19 18:00:07,039 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:00:07,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:00:07,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1584330853, now seen corresponding path program 1 times [2021-02-19 18:00:07,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:00:07,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309511595] [2021-02-19 18:00:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:00:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:07,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:07,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:07,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:07,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:00:07,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:07,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:00:07,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:07,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:00:07,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:07,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:00:07,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:07,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:07,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:00:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:00:07,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:00:07,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:00:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:00:07,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309511595] [2021-02-19 18:00:07,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:00:07,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-19 18:00:07,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770215358] [2021-02-19 18:00:07,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 18:00:07,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:00:07,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 18:00:07,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:00:07,137 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2021-02-19 18:00:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:00:07,729 INFO L93 Difference]: Finished difference Result 125 states and 147 transitions. [2021-02-19 18:00:07,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:00:07,729 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2021-02-19 18:00:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:00:07,730 INFO L225 Difference]: With dead ends: 125 [2021-02-19 18:00:07,730 INFO L226 Difference]: Without dead ends: 0 [2021-02-19 18:00:07,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-02-19 18:00:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-19 18:00:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-19 18:00:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-19 18:00:07,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-19 18:00:07,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-02-19 18:00:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:00:07,732 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-19 18:00:07,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-19 18:00:07,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-19 18:00:07,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-19 18:00:07,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-19 18:00:07,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-19 18:00:08,473 WARN L202 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 156 [2021-02-19 18:00:08,862 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 132 [2021-02-19 18:00:09,249 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 113 [2021-02-19 18:00:09,684 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 38 [2021-02-19 18:00:09,949 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 22 [2021-02-19 18:00:10,157 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 13 [2021-02-19 18:00:10,160 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-19 18:00:10,160 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-19 18:00:10,160 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-19 18:00:10,160 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-19 18:00:10,160 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~__return_334~0 |old(~__return_334~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-19 18:00:10,161 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-19 18:00:10,161 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-19 18:00:10,161 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-19 18:00:10,161 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-19 18:00:10,161 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-19 18:00:10,161 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2021-02-19 18:00:10,161 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-02-19 18:00:10,161 INFO L189 CegarLoopUtils]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2021-02-19 18:00:10,161 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2021-02-19 18:00:10,161 INFO L189 CegarLoopUtils]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point L217(line 217) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 13 313) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point L193(line 193) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-02-19 18:00:10,162 INFO L189 CegarLoopUtils]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-02-19 18:00:10,163 INFO L189 CegarLoopUtils]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-02-19 18:00:10,163 INFO L189 CegarLoopUtils]: For program point L177(line 177) no Hoare annotation was computed. [2021-02-19 18:00:10,163 INFO L189 CegarLoopUtils]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-02-19 18:00:10,163 INFO L189 CegarLoopUtils]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-02-19 18:00:10,164 INFO L185 CegarLoopUtils]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= 0 main_~main__i~0) (< main_~main__i~0 main_~main__len~0) (<= 0 main_~main__j~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2021-02-19 18:00:10,164 INFO L189 CegarLoopUtils]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-02-19 18:00:10,164 INFO L189 CegarLoopUtils]: For program point L153(line 153) no Hoare annotation was computed. [2021-02-19 18:00:10,164 INFO L189 CegarLoopUtils]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-02-19 18:00:10,164 INFO L189 CegarLoopUtils]: For program point L112(line 112) no Hoare annotation was computed. [2021-02-19 18:00:10,164 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 13 313) no Hoare annotation was computed. [2021-02-19 18:00:10,164 INFO L189 CegarLoopUtils]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-02-19 18:00:10,165 INFO L189 CegarLoopUtils]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-02-19 18:00:10,165 INFO L189 CegarLoopUtils]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-02-19 18:00:10,165 INFO L189 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-02-19 18:00:10,166 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 13 313) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2021-02-19 18:00:10,166 INFO L189 CegarLoopUtils]: For program point L88(line 88) no Hoare annotation was computed. [2021-02-19 18:00:10,166 INFO L189 CegarLoopUtils]: For program point L245(line 245) no Hoare annotation was computed. [2021-02-19 18:00:10,166 INFO L189 CegarLoopUtils]: For program point L47(line 47) no Hoare annotation was computed. [2021-02-19 18:00:10,166 INFO L189 CegarLoopUtils]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-02-19 18:00:10,166 INFO L189 CegarLoopUtils]: For program point L229(line 229) no Hoare annotation was computed. [2021-02-19 18:00:10,166 INFO L189 CegarLoopUtils]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-02-19 18:00:10,166 INFO L189 CegarLoopUtils]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-02-19 18:00:10,168 INFO L185 CegarLoopUtils]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2021-02-19 18:00:10,168 INFO L189 CegarLoopUtils]: For program point L205(line 205) no Hoare annotation was computed. [2021-02-19 18:00:10,168 INFO L189 CegarLoopUtils]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-02-19 18:00:10,168 INFO L189 CegarLoopUtils]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-02-19 18:00:10,168 INFO L189 CegarLoopUtils]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-02-19 18:00:10,168 INFO L189 CegarLoopUtils]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-02-19 18:00:10,168 INFO L189 CegarLoopUtils]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-02-19 18:00:10,169 INFO L189 CegarLoopUtils]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-02-19 18:00:10,169 INFO L189 CegarLoopUtils]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-02-19 18:00:10,169 INFO L189 CegarLoopUtils]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-02-19 18:00:10,169 INFO L185 CegarLoopUtils]: At program point L264(lines 31 306) the Hoare annotation is: (let ((.cse4 (<= (+ main_~main__j~0 4) main_~main__bufsize~0)) (.cse0 (= |old(~__return_334~0)| ~__return_334~0)) (.cse1 (<= (+ main_~main__limit~0 4) main_~main__bufsize~0))) (let ((.cse2 (<= 1 main_~main__j~0)) (.cse3 (let ((.cse5 (<= 0 main_~main__j~0)) (.cse6 (<= 1 main_~main__i~0))) (or (and .cse5 .cse6 .cse0 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse1) (and .cse5 .cse6 .cse4 .cse0 .cse1))))) (or (and (<= 0 main_~main__i~0) (= main_~main__j~0 0) (< main_~main__i~0 main_~main__len~0) .cse0 .cse1) (and .cse2 .cse3 (not (= main_~__VERIFIER_assert__cond~14 0))) (and .cse2 .cse3 .cse4)))) [2021-02-19 18:00:10,169 INFO L189 CegarLoopUtils]: For program point L165(line 165) no Hoare annotation was computed. [2021-02-19 18:00:10,169 INFO L189 CegarLoopUtils]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-02-19 18:00:10,169 INFO L189 CegarLoopUtils]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-02-19 18:00:10,169 INFO L189 CegarLoopUtils]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-02-19 18:00:10,170 INFO L189 CegarLoopUtils]: For program point L141(line 141) no Hoare annotation was computed. [2021-02-19 18:00:10,170 INFO L189 CegarLoopUtils]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-02-19 18:00:10,170 INFO L189 CegarLoopUtils]: For program point L100(line 100) no Hoare annotation was computed. [2021-02-19 18:00:10,170 INFO L189 CegarLoopUtils]: For program point L257(line 257) no Hoare annotation was computed. [2021-02-19 18:00:10,170 INFO L189 CegarLoopUtils]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-02-19 18:00:10,170 INFO L189 CegarLoopUtils]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-02-19 18:00:10,170 INFO L189 CegarLoopUtils]: For program point L59(line 59) no Hoare annotation was computed. [2021-02-19 18:00:10,170 INFO L189 CegarLoopUtils]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-02-19 18:00:10,170 INFO L189 CegarLoopUtils]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-02-19 18:00:10,171 INFO L189 CegarLoopUtils]: For program point L76(line 76) no Hoare annotation was computed. [2021-02-19 18:00:10,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 06:00:10 BoogieIcfgContainer [2021-02-19 18:00:10,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 18:00:10,198 INFO L168 Benchmark]: Toolchain (without parser) took 10753.16 ms. Allocated memory was 174.1 MB in the beginning and 312.5 MB in the end (delta: 138.4 MB). Free memory was 149.0 MB in the beginning and 269.2 MB in the end (delta: -120.2 MB). Peak memory consumption was 175.7 MB. Max. memory is 8.0 GB. [2021-02-19 18:00:10,198 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 174.1 MB. Free memory is still 144.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 18:00:10,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.07 ms. Allocated memory is still 174.1 MB. Free memory was 147.9 MB in the beginning and 132.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-19 18:00:10,199 INFO L168 Benchmark]: Boogie Preprocessor took 44.44 ms. Allocated memory is still 174.1 MB. Free memory was 132.3 MB in the beginning and 130.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-19 18:00:10,200 INFO L168 Benchmark]: RCFGBuilder took 716.18 ms. Allocated memory is still 174.1 MB. Free memory was 130.5 MB in the beginning and 144.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. [2021-02-19 18:00:10,201 INFO L168 Benchmark]: TraceAbstraction took 9605.82 ms. Allocated memory was 174.1 MB in the beginning and 312.5 MB in the end (delta: 138.4 MB). Free memory was 143.7 MB in the beginning and 269.2 MB in the end (delta: -125.5 MB). Peak memory consumption was 169.1 MB. Max. memory is 8.0 GB. [2021-02-19 18:00:10,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 174.1 MB. Free memory is still 144.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 367.07 ms. Allocated memory is still 174.1 MB. Free memory was 147.9 MB in the beginning and 132.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.44 ms. Allocated memory is still 174.1 MB. Free memory was 132.3 MB in the beginning and 130.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 716.18 ms. Allocated memory is still 174.1 MB. Free memory was 130.5 MB in the beginning and 144.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9605.82 ms. Allocated memory was 174.1 MB in the beginning and 312.5 MB in the end (delta: 138.4 MB). Free memory was 143.7 MB in the beginning and 269.2 MB in the end (delta: -125.5 MB). Peak memory consumption was 169.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 153]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 165]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 229]: 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: 193]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 245]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 217]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 100]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 205]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 76]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 141]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 112]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 88]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 59]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((0 <= main__i && main__j == 0) && main__i < main__len) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize) || ((1 <= main__j && (((((0 <= main__j && 1 <= main__i) && \old(__return_334) == __return_334) && !(__VERIFIER_assert__cond == 0)) && main__limit + 4 <= main__bufsize) || ((((0 <= main__j && 1 <= main__i) && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize))) && !(__VERIFIER_assert__cond == 0))) || ((1 <= main__j && (((((0 <= main__j && 1 <= main__i) && \old(__return_334) == __return_334) && !(__VERIFIER_assert__cond == 0)) && main__limit + 4 <= main__bufsize) || ((((0 <= main__j && 1 <= main__i) && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize))) && main__j + 4 <= main__bufsize) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((0 <= main__i && main__i < main__len) && 0 <= main__j) && main__j + 5 <= main__bufsize) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (0 <= main__i && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 72 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.0s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 941 SDtfs, 1948 SDslu, 201 SDs, 0 SdLazy, 1688 SolverSat, 170 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 435 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 26 NumberOfFragments, 193 HoareAnnotationTreeSize, 7 FomulaSimplifications, 3449650758 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 697078 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 23112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...