/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 [2021-02-21 16:26:58,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:26:58,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:26:58,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:26:58,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:26:58,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:26:58,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:26:58,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:26:58,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:26:58,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:26:58,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:26:58,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:26:58,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:26:58,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:26:58,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:26:58,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:26:58,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:26:58,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:26:58,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:26:58,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:26:58,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:26:58,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:26:58,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:26:58,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:26:58,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:26:58,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:26:58,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:26:58,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:26:58,886 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 [2021-02-21 16:26:58,937 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:26:58,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:26:58,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:26:58,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:26:58,943 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:26:58,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:26:58,943 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:26:58,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:26:58,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:26:58,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:26:58,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:26:58,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:26:58,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:26:58,946 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:26:58,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:26:58,946 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:26:58,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:26:58,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:26:58,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:26:58,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:26:58,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:26:58,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:26:58,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:26:58,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:26:58,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:26:58,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:26:58,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:26:58,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:26:58,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:26:59,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:26:59,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:26:59,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:26:59,449 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:26:59,450 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:26:59,451 INFO L432 ainManager$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 [2021-02-21 16:26:59,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15fb0a919/361f0c812c144c3bafb8ab4e23863aa3/FLAG191823c43 [2021-02-21 16:27:00,114 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:27:00,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2021-02-21 16:27:00,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15fb0a919/361f0c812c144c3bafb8ab4e23863aa3/FLAG191823c43 [2021-02-21 16:27:00,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15fb0a919/361f0c812c144c3bafb8ab4e23863aa3 [2021-02-21 16:27:00,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:27:00,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:27:00,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:27:00,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:27:00,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:27:00,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:27:00" (1/1) ... [2021-02-21 16:27:00,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0ee4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00, skipping insertion in model container [2021-02-21 16:27:00,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:27:00" (1/1) ... [2021-02-21 16:27:00,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:27:00,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:27:00,758 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] [2021-02-21 16:27:00,764 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] [2021-02-21 16:27:00,767 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] [2021-02-21 16:27:00,769 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] [2021-02-21 16:27:00,772 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] [2021-02-21 16:27:00,774 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] [2021-02-21 16:27:00,778 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[2629,2642] [2021-02-21 16:27:00,780 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] [2021-02-21 16:27:00,782 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[3040,3053] [2021-02-21 16:27:00,784 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[3243,3256] [2021-02-21 16:27:00,788 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[3583,3596] [2021-02-21 16:27:00,790 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[3786,3799] [2021-02-21 16:27:00,792 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2021-02-21 16:27:00,795 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[4203,4216] [2021-02-21 16:27:00,798 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[4547,4560] [2021-02-21 16:27:00,800 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[4750,4763] [2021-02-21 16:27:00,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:27:00,816 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:27:00,836 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] [2021-02-21 16:27:00,838 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] [2021-02-21 16:27:00,840 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] [2021-02-21 16:27:00,841 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] [2021-02-21 16:27:00,843 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] [2021-02-21 16:27:00,845 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] [2021-02-21 16:27:00,847 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] [2021-02-21 16:27:00,850 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] [2021-02-21 16:27:00,855 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] [2021-02-21 16:27:00,857 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] [2021-02-21 16:27:00,865 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3583,3596] [2021-02-21 16:27:00,867 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[3786,3799] [2021-02-21 16:27:00,869 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2021-02-21 16:27:00,870 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4203,4216] [2021-02-21 16:27:00,873 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4547,4560] [2021-02-21 16:27:00,875 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c[4750,4763] [2021-02-21 16:27:00,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:27:00,896 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:27:00,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00 WrapperNode [2021-02-21 16:27:00,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:27:00,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:27:00,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:27:00,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:27:00,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00" (1/1) ... [2021-02-21 16:27:00,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00" (1/1) ... [2021-02-21 16:27:00,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00" (1/1) ... [2021-02-21 16:27:00,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00" (1/1) ... [2021-02-21 16:27:00,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00" (1/1) ... [2021-02-21 16:27:00,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00" (1/1) ... [2021-02-21 16:27:00,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00" (1/1) ... [2021-02-21 16:27:00,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:27:00,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:27:00,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:27:00,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:27:00,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:27:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:27:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:27:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:27:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-21 16:27:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:27:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:27:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:27:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:27:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:27:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-21 16:27:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 16:27:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 16:27:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:27:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:27:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:27:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:27:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:27:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:27:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:27:01,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:27:01,680 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 16:27:01,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:27:01 BoogieIcfgContainer [2021-02-21 16:27:01,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:27:01,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:27:01,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:27:01,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:27:01,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:27:00" (1/3) ... [2021-02-21 16:27:01,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a09c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:27:01, skipping insertion in model container [2021-02-21 16:27:01,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:00" (2/3) ... [2021-02-21 16:27:01,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a09c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:27:01, skipping insertion in model container [2021-02-21 16:27:01,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:27:01" (3/3) ... [2021-02-21 16:27:01,696 INFO L111 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2021-02-21 16:27:01,707 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:27:01,714 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2021-02-21 16:27:01,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-02-21 16:27:01,782 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:27:01,782 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:27:01,783 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:27:01,783 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:27:01,783 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:27:01,784 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:27:01,785 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:27:01,786 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:27:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2021-02-21 16:27:01,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-02-21 16:27:01,837 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:01,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:01,840 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]=== [2021-02-21 16:27:01,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:01,851 INFO L82 PathProgramCache]: Analyzing trace with hash -189701311, now seen corresponding path program 1 times [2021-02-21 16:27:01,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:01,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613088466] [2021-02-21 16:27:01,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:02,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:02,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:02,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:02,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:02,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:02,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:02,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613088466] [2021-02-21 16:27:02,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:02,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 16:27:02,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183040421] [2021-02-21 16:27:02,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 16:27:02,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:02,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 16:27:02,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:27:02,336 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2021-02-21 16:27:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:02,632 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2021-02-21 16:27:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 16:27:02,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-02-21 16:27:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:02,645 INFO L225 Difference]: With dead ends: 90 [2021-02-21 16:27:02,645 INFO L226 Difference]: Without dead ends: 76 [2021-02-21 16:27:02,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:27:02,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-02-21 16:27:02,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2021-02-21 16:27:02,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-02-21 16:27:02,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2021-02-21 16:27:02,698 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 13 [2021-02-21 16:27:02,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:02,699 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2021-02-21 16:27:02,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 16:27:02,699 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2021-02-21 16:27:02,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-21 16:27:02,700 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:02,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:02,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:27:02,701 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]=== [2021-02-21 16:27:02,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:02,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1582601500, now seen corresponding path program 1 times [2021-02-21 16:27:02,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:02,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149126341] [2021-02-21 16:27:02,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:02,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:02,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:02,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:02,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:02,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:02,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:02,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:02,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:02,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:02,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149126341] [2021-02-21 16:27:02,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:02,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 16:27:02,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590411624] [2021-02-21 16:27:02,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 16:27:02,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:02,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 16:27:02,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:27:02,895 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2021-02-21 16:27:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:03,495 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2021-02-21 16:27:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 16:27:03,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-02-21 16:27:03,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:03,498 INFO L225 Difference]: With dead ends: 153 [2021-02-21 16:27:03,498 INFO L226 Difference]: Without dead ends: 101 [2021-02-21 16:27:03,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-21 16:27:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-02-21 16:27:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 58. [2021-02-21 16:27:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-02-21 16:27:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-02-21 16:27:03,513 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 14 [2021-02-21 16:27:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:03,513 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-02-21 16:27:03,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 16:27:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-02-21 16:27:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-21 16:27:03,514 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:03,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:03,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 16:27:03,515 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]=== [2021-02-21 16:27:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:03,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1585770269, now seen corresponding path program 1 times [2021-02-21 16:27:03,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:03,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252144048] [2021-02-21 16:27:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:03,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:03,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:03,583 WARN L141 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-02-21 16:27:03,584 WARN L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-02-21 16:27:03,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:03,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:03,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:03,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:03,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:03,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:03,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:03,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252144048] [2021-02-21 16:27:03,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:03,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 16:27:03,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149173177] [2021-02-21 16:27:03,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 16:27:03,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:03,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 16:27:03,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:27:03,690 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 5 states. [2021-02-21 16:27:03,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:03,996 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2021-02-21 16:27:03,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 16:27:03,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-02-21 16:27:03,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:03,999 INFO L225 Difference]: With dead ends: 75 [2021-02-21 16:27:03,999 INFO L226 Difference]: Without dead ends: 73 [2021-02-21 16:27:04,000 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 [2021-02-21 16:27:04,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-02-21 16:27:04,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2021-02-21 16:27:04,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-02-21 16:27:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-02-21 16:27:04,010 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 14 [2021-02-21 16:27:04,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:04,011 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-02-21 16:27:04,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 16:27:04,011 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-02-21 16:27:04,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-21 16:27:04,012 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:04,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:04,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 16:27:04,013 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]=== [2021-02-21 16:27:04,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:04,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1816003151, now seen corresponding path program 1 times [2021-02-21 16:27:04,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:04,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490584208] [2021-02-21 16:27:04,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:04,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:04,060 WARN L141 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-02-21 16:27:04,061 WARN L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-02-21 16:27:04,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:04,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:04,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:04,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:04,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490584208] [2021-02-21 16:27:04,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:04,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 16:27:04,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223017685] [2021-02-21 16:27:04,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 16:27:04,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:04,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 16:27:04,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:27:04,133 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2021-02-21 16:27:04,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:04,372 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2021-02-21 16:27:04,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 16:27:04,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-02-21 16:27:04,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:04,374 INFO L225 Difference]: With dead ends: 96 [2021-02-21 16:27:04,374 INFO L226 Difference]: Without dead ends: 94 [2021-02-21 16:27:04,375 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 [2021-02-21 16:27:04,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-02-21 16:27:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 54. [2021-02-21 16:27:04,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-02-21 16:27:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2021-02-21 16:27:04,384 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 15 [2021-02-21 16:27:04,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:04,385 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2021-02-21 16:27:04,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 16:27:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2021-02-21 16:27:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-21 16:27:04,385 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:04,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:04,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 16:27:04,386 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]=== [2021-02-21 16:27:04,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:04,387 INFO L82 PathProgramCache]: Analyzing trace with hash -461519734, now seen corresponding path program 1 times [2021-02-21 16:27:04,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:04,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569021136] [2021-02-21 16:27:04,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:04,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:04,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:04,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:04,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:04,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:04,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:04,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:04,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:04,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:04,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569021136] [2021-02-21 16:27:04,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:04,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:27:04,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546607979] [2021-02-21 16:27:04,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:27:04,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:04,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:27:04,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:27:04,519 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 6 states. [2021-02-21 16:27:04,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:04,936 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2021-02-21 16:27:04,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 16:27:04,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-02-21 16:27:04,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:04,939 INFO L225 Difference]: With dead ends: 95 [2021-02-21 16:27:04,939 INFO L226 Difference]: Without dead ends: 93 [2021-02-21 16:27:04,939 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 [2021-02-21 16:27:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-02-21 16:27:04,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 52. [2021-02-21 16:27:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-02-21 16:27:04,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2021-02-21 16:27:04,956 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 16 [2021-02-21 16:27:04,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:04,957 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2021-02-21 16:27:04,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:27:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2021-02-21 16:27:04,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-21 16:27:04,958 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:04,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:04,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 16:27:04,960 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]=== [2021-02-21 16:27:04,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:04,961 INFO L82 PathProgramCache]: Analyzing trace with hash 788286019, now seen corresponding path program 1 times [2021-02-21 16:27:04,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:04,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993074911] [2021-02-21 16:27:04,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:05,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:05,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:05,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:05,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:05,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993074911] [2021-02-21 16:27:05,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:05,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 16:27:05,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600644626] [2021-02-21 16:27:05,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 16:27:05,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:05,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 16:27:05,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:27:05,100 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 5 states. [2021-02-21 16:27:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:05,340 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2021-02-21 16:27:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 16:27:05,341 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2021-02-21 16:27:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:05,344 INFO L225 Difference]: With dead ends: 69 [2021-02-21 16:27:05,345 INFO L226 Difference]: Without dead ends: 67 [2021-02-21 16:27:05,351 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 [2021-02-21 16:27:05,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-02-21 16:27:05,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2021-02-21 16:27:05,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-02-21 16:27:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2021-02-21 16:27:05,371 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 16 [2021-02-21 16:27:05,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:05,371 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2021-02-21 16:27:05,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 16:27:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2021-02-21 16:27:05,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-21 16:27:05,372 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:05,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:05,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 16:27:05,374 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]=== [2021-02-21 16:27:05,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:05,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1422206761, now seen corresponding path program 1 times [2021-02-21 16:27:05,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:05,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425088473] [2021-02-21 16:27:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:05,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,448 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-21 16:27:05,448 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-21 16:27:05,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:05,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:05,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:05,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425088473] [2021-02-21 16:27:05,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:05,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 16:27:05,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205935530] [2021-02-21 16:27:05,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 16:27:05,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:05,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 16:27:05,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:27:05,502 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 5 states. [2021-02-21 16:27:05,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:05,700 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2021-02-21 16:27:05,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 16:27:05,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-02-21 16:27:05,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:05,702 INFO L225 Difference]: With dead ends: 91 [2021-02-21 16:27:05,702 INFO L226 Difference]: Without dead ends: 89 [2021-02-21 16:27:05,703 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 [2021-02-21 16:27:05,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-02-21 16:27:05,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 48. [2021-02-21 16:27:05,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-02-21 16:27:05,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-02-21 16:27:05,712 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 17 [2021-02-21 16:27:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:05,712 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-02-21 16:27:05,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 16:27:05,713 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-02-21 16:27:05,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-21 16:27:05,714 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:05,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:05,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 16:27:05,714 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]=== [2021-02-21 16:27:05,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:05,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1332934067, now seen corresponding path program 1 times [2021-02-21 16:27:05,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:05,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431455069] [2021-02-21 16:27:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:05,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,741 WARN L141 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size [2021-02-21 16:27:05,742 WARN L147 QuantifierPusher]: treesize reduction 1, result has 93.8 percent of original size 15 [2021-02-21 16:27:05,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:27:05,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:05,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:05,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:05,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:05,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431455069] [2021-02-21 16:27:05,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:05,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:27:05,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123998208] [2021-02-21 16:27:05,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:27:05,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:05,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:27:05,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:27:05,830 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 6 states. [2021-02-21 16:27:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:06,166 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2021-02-21 16:27:06,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 16:27:06,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-02-21 16:27:06,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:06,168 INFO L225 Difference]: With dead ends: 73 [2021-02-21 16:27:06,168 INFO L226 Difference]: Without dead ends: 71 [2021-02-21 16:27:06,168 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 [2021-02-21 16:27:06,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-02-21 16:27:06,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2021-02-21 16:27:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-02-21 16:27:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-02-21 16:27:06,177 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2021-02-21 16:27:06,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:06,177 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-02-21 16:27:06,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:27:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-02-21 16:27:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-02-21 16:27:06,178 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:06,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:06,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-21 16:27:06,179 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]=== [2021-02-21 16:27:06,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:06,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1628720009, now seen corresponding path program 1 times [2021-02-21 16:27:06,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:06,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629276441] [2021-02-21 16:27:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:06,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:06,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:06,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:06,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:06,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:06,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:06,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:06,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:06,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:06,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629276441] [2021-02-21 16:27:06,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:06,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:27:06,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930573769] [2021-02-21 16:27:06,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:27:06,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:06,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:27:06,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:27:06,286 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 6 states. [2021-02-21 16:27:06,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:06,558 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2021-02-21 16:27:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 16:27:06,560 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-02-21 16:27:06,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:06,561 INFO L225 Difference]: With dead ends: 61 [2021-02-21 16:27:06,565 INFO L226 Difference]: Without dead ends: 59 [2021-02-21 16:27:06,565 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 [2021-02-21 16:27:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-02-21 16:27:06,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 44. [2021-02-21 16:27:06,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-02-21 16:27:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-02-21 16:27:06,579 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 18 [2021-02-21 16:27:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:06,582 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-02-21 16:27:06,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:27:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-02-21 16:27:06,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-21 16:27:06,586 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:06,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:06,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-21 16:27:06,586 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]=== [2021-02-21 16:27:06,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:06,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1049284141, now seen corresponding path program 1 times [2021-02-21 16:27:06,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:06,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184587428] [2021-02-21 16:27:06,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:06,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:06,656 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-21 16:27:06,657 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-21 16:27:06,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:06,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:06,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:06,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:06,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184587428] [2021-02-21 16:27:06,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:06,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 16:27:06,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557375979] [2021-02-21 16:27:06,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 16:27:06,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:06,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 16:27:06,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:27:06,706 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2021-02-21 16:27:06,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:06,850 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2021-02-21 16:27:06,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 16:27:06,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2021-02-21 16:27:06,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:06,852 INFO L225 Difference]: With dead ends: 61 [2021-02-21 16:27:06,852 INFO L226 Difference]: Without dead ends: 59 [2021-02-21 16:27:06,852 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 [2021-02-21 16:27:06,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-02-21 16:27:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 42. [2021-02-21 16:27:06,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-02-21 16:27:06,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-02-21 16:27:06,860 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 19 [2021-02-21 16:27:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:06,860 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-02-21 16:27:06,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 16:27:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-02-21 16:27:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-21 16:27:06,861 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:06,861 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] [2021-02-21 16:27:06,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-21 16:27:06,862 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]=== [2021-02-21 16:27:06,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:06,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1831933135, now seen corresponding path program 1 times [2021-02-21 16:27:06,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:06,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576771596] [2021-02-21 16:27:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:06,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:06,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:06,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:06,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:06,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:06,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:06,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:06,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:06,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576771596] [2021-02-21 16:27:06,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:06,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 16:27:06,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375825066] [2021-02-21 16:27:06,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 16:27:06,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:06,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 16:27:06,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 16:27:06,947 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2021-02-21 16:27:07,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:07,204 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2021-02-21 16:27:07,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 16:27:07,205 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2021-02-21 16:27:07,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:07,206 INFO L225 Difference]: With dead ends: 69 [2021-02-21 16:27:07,206 INFO L226 Difference]: Without dead ends: 67 [2021-02-21 16:27:07,207 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 [2021-02-21 16:27:07,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-02-21 16:27:07,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 40. [2021-02-21 16:27:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-02-21 16:27:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-02-21 16:27:07,214 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 20 [2021-02-21 16:27:07,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:07,215 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-02-21 16:27:07,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 16:27:07,215 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2021-02-21 16:27:07,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-02-21 16:27:07,216 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:07,216 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] [2021-02-21 16:27:07,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-21 16:27:07,216 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]=== [2021-02-21 16:27:07,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:07,217 INFO L82 PathProgramCache]: Analyzing trace with hash 955355481, now seen corresponding path program 1 times [2021-02-21 16:27:07,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:07,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266151141] [2021-02-21 16:27:07,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:07,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:07,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:27:07,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:27:07,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:07,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:07,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:07,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:07,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266151141] [2021-02-21 16:27:07,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:07,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:27:07,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926112182] [2021-02-21 16:27:07,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:27:07,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:07,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:27:07,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:27:07,297 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 6 states. [2021-02-21 16:27:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:07,626 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2021-02-21 16:27:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 16:27:07,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2021-02-21 16:27:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:07,627 INFO L225 Difference]: With dead ends: 74 [2021-02-21 16:27:07,627 INFO L226 Difference]: Without dead ends: 72 [2021-02-21 16:27:07,628 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 [2021-02-21 16:27:07,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-02-21 16:27:07,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 38. [2021-02-21 16:27:07,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-21 16:27:07,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2021-02-21 16:27:07,636 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 21 [2021-02-21 16:27:07,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:07,636 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-02-21 16:27:07,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:27:07,636 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2021-02-21 16:27:07,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-21 16:27:07,637 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:07,637 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] [2021-02-21 16:27:07,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-21 16:27:07,637 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]=== [2021-02-21 16:27:07,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:07,638 INFO L82 PathProgramCache]: Analyzing trace with hash -448748011, now seen corresponding path program 1 times [2021-02-21 16:27:07,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:07,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609000991] [2021-02-21 16:27:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:07,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:07,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:07,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:07,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:07,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:07,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:07,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:07,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:07,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:07,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609000991] [2021-02-21 16:27:07,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:07,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 16:27:07,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278411608] [2021-02-21 16:27:07,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 16:27:07,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:07,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 16:27:07,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-21 16:27:07,737 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 7 states. [2021-02-21 16:27:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:08,114 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2021-02-21 16:27:08,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:27:08,115 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2021-02-21 16:27:08,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:08,116 INFO L225 Difference]: With dead ends: 62 [2021-02-21 16:27:08,116 INFO L226 Difference]: Without dead ends: 60 [2021-02-21 16:27:08,116 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 [2021-02-21 16:27:08,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-02-21 16:27:08,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 36. [2021-02-21 16:27:08,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-02-21 16:27:08,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2021-02-21 16:27:08,124 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 22 [2021-02-21 16:27:08,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:08,124 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-02-21 16:27:08,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 16:27:08,124 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2021-02-21 16:27:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-02-21 16:27:08,125 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:08,125 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] [2021-02-21 16:27:08,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-21 16:27:08,125 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]=== [2021-02-21 16:27:08,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:08,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1026283297, now seen corresponding path program 1 times [2021-02-21 16:27:08,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:08,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976740115] [2021-02-21 16:27:08,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:08,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:08,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:27:08,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:27:08,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:08,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:08,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:08,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:08,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976740115] [2021-02-21 16:27:08,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:08,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:27:08,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723051732] [2021-02-21 16:27:08,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:27:08,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:08,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:27:08,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:27:08,229 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2021-02-21 16:27:08,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:08,602 INFO L93 Difference]: Finished difference Result 87 states and 101 transitions. [2021-02-21 16:27:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 16:27:08,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2021-02-21 16:27:08,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:08,604 INFO L225 Difference]: With dead ends: 87 [2021-02-21 16:27:08,604 INFO L226 Difference]: Without dead ends: 85 [2021-02-21 16:27:08,605 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 [2021-02-21 16:27:08,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-02-21 16:27:08,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 34. [2021-02-21 16:27:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-02-21 16:27:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2021-02-21 16:27:08,612 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 23 [2021-02-21 16:27:08,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:08,612 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2021-02-21 16:27:08,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:27:08,613 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2021-02-21 16:27:08,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-21 16:27:08,613 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:08,613 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] [2021-02-21 16:27:08,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-21 16:27:08,614 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]=== [2021-02-21 16:27:08,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:08,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1750007973, now seen corresponding path program 1 times [2021-02-21 16:27:08,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:08,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399310390] [2021-02-21 16:27:08,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:08,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:08,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:08,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:08,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:27:08,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:08,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:08,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:08,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:08,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:08,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:08,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399310390] [2021-02-21 16:27:08,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:08,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 16:27:08,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746327892] [2021-02-21 16:27:08,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 16:27:08,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:08,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 16:27:08,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-21 16:27:08,719 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 7 states. [2021-02-21 16:27:09,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:09,131 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2021-02-21 16:27:09,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:27:09,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2021-02-21 16:27:09,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:09,133 INFO L225 Difference]: With dead ends: 60 [2021-02-21 16:27:09,133 INFO L226 Difference]: Without dead ends: 58 [2021-02-21 16:27:09,134 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 [2021-02-21 16:27:09,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-02-21 16:27:09,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 32. [2021-02-21 16:27:09,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-02-21 16:27:09,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-02-21 16:27:09,141 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2021-02-21 16:27:09,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:09,141 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-02-21 16:27:09,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 16:27:09,141 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2021-02-21 16:27:09,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-21 16:27:09,142 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:09,142 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] [2021-02-21 16:27:09,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-21 16:27:09,142 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]=== [2021-02-21 16:27:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:09,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1584330853, now seen corresponding path program 1 times [2021-02-21 16:27:09,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:09,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042241410] [2021-02-21 16:27:09,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:09,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:09,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:09,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:09,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:27:09,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:09,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:27:09,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:09,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:27:09,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:09,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:09,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:09,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:09,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:09,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:09,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:09,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042241410] [2021-02-21 16:27:09,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:09,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-21 16:27:09,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082317195] [2021-02-21 16:27:09,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-21 16:27:09,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:09,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-21 16:27:09,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-21 16:27:09,231 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2021-02-21 16:27:09,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:09,812 INFO L93 Difference]: Finished difference Result 125 states and 147 transitions. [2021-02-21 16:27:09,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:27:09,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2021-02-21 16:27:09,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:09,813 INFO L225 Difference]: With dead ends: 125 [2021-02-21 16:27:09,813 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 16:27:09,815 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 [2021-02-21 16:27:09,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 16:27:09,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 16:27:09,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 16:27:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 16:27:09,816 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-02-21 16:27:09,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:09,816 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 16:27:09,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-21 16:27:09,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 16:27:09,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 16:27:09,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-21 16:27:09,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 16:27:10,664 WARN L202 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 156 [2021-02-21 16:27:11,097 WARN L202 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 132 [2021-02-21 16:27:11,613 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 113 [2021-02-21 16:27:12,071 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 38 [2021-02-21 16:27:12,309 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 22 [2021-02-21 16:27:12,514 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 13 [2021-02-21 16:27:12,517 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-21 16:27:12,518 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-21 16:27:12,518 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-21 16:27:12,518 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:27:12,518 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|)) [2021-02-21 16:27:12,518 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:27:12,518 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:27:12,518 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 16:27:12,518 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 16:27:12,518 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:27:12,519 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2021-02-21 16:27:12,519 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-02-21 16:27:12,519 INFO L189 CegarLoopUtils]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2021-02-21 16:27:12,519 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2021-02-21 16:27:12,519 INFO L189 CegarLoopUtils]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-02-21 16:27:12,519 INFO L189 CegarLoopUtils]: For program point L217(line 217) no Hoare annotation was computed. [2021-02-21 16:27:12,519 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 13 313) no Hoare annotation was computed. [2021-02-21 16:27:12,519 INFO L189 CegarLoopUtils]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-02-21 16:27:12,519 INFO L189 CegarLoopUtils]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point L193(line 193) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point L177(line 177) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-02-21 16:27:12,520 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)) [2021-02-21 16:27:12,520 INFO L189 CegarLoopUtils]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-02-21 16:27:12,521 INFO L189 CegarLoopUtils]: For program point L153(line 153) no Hoare annotation was computed. [2021-02-21 16:27:12,521 INFO L189 CegarLoopUtils]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-02-21 16:27:12,521 INFO L189 CegarLoopUtils]: For program point L112(line 112) no Hoare annotation was computed. [2021-02-21 16:27:12,521 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 13 313) no Hoare annotation was computed. [2021-02-21 16:27:12,521 INFO L189 CegarLoopUtils]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-02-21 16:27:12,521 INFO L189 CegarLoopUtils]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-02-21 16:27:12,521 INFO L189 CegarLoopUtils]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-02-21 16:27:12,521 INFO L189 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-02-21 16:27:12,521 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 13 313) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2021-02-21 16:27:12,522 INFO L189 CegarLoopUtils]: For program point L88(line 88) no Hoare annotation was computed. [2021-02-21 16:27:12,522 INFO L189 CegarLoopUtils]: For program point L245(line 245) no Hoare annotation was computed. [2021-02-21 16:27:12,522 INFO L189 CegarLoopUtils]: For program point L47(line 47) no Hoare annotation was computed. [2021-02-21 16:27:12,522 INFO L189 CegarLoopUtils]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-02-21 16:27:12,522 INFO L189 CegarLoopUtils]: For program point L229(line 229) no Hoare annotation was computed. [2021-02-21 16:27:12,522 INFO L189 CegarLoopUtils]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-02-21 16:27:12,522 INFO L189 CegarLoopUtils]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-02-21 16:27:12,522 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)) [2021-02-21 16:27:12,523 INFO L189 CegarLoopUtils]: For program point L205(line 205) no Hoare annotation was computed. [2021-02-21 16:27:12,523 INFO L189 CegarLoopUtils]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-02-21 16:27:12,523 INFO L189 CegarLoopUtils]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-02-21 16:27:12,523 INFO L189 CegarLoopUtils]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-02-21 16:27:12,523 INFO L189 CegarLoopUtils]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-02-21 16:27:12,523 INFO L189 CegarLoopUtils]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-02-21 16:27:12,523 INFO L189 CegarLoopUtils]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-02-21 16:27:12,523 INFO L189 CegarLoopUtils]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-02-21 16:27:12,523 INFO L189 CegarLoopUtils]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-02-21 16:27:12,524 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)))) [2021-02-21 16:27:12,524 INFO L189 CegarLoopUtils]: For program point L165(line 165) no Hoare annotation was computed. [2021-02-21 16:27:12,524 INFO L189 CegarLoopUtils]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-02-21 16:27:12,524 INFO L189 CegarLoopUtils]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-02-21 16:27:12,524 INFO L189 CegarLoopUtils]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-02-21 16:27:12,524 INFO L189 CegarLoopUtils]: For program point L141(line 141) no Hoare annotation was computed. [2021-02-21 16:27:12,524 INFO L189 CegarLoopUtils]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-02-21 16:27:12,524 INFO L189 CegarLoopUtils]: For program point L100(line 100) no Hoare annotation was computed. [2021-02-21 16:27:12,524 INFO L189 CegarLoopUtils]: For program point L257(line 257) no Hoare annotation was computed. [2021-02-21 16:27:12,525 INFO L189 CegarLoopUtils]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-02-21 16:27:12,525 INFO L189 CegarLoopUtils]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-02-21 16:27:12,525 INFO L189 CegarLoopUtils]: For program point L59(line 59) no Hoare annotation was computed. [2021-02-21 16:27:12,525 INFO L189 CegarLoopUtils]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-02-21 16:27:12,525 INFO L189 CegarLoopUtils]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-02-21 16:27:12,525 INFO L189 CegarLoopUtils]: For program point L76(line 76) no Hoare annotation was computed. [2021-02-21 16:27:12,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:27:12 BoogieIcfgContainer [2021-02-21 16:27:12,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:27:12,548 INFO L168 Benchmark]: Toolchain (without parser) took 12121.70 ms. Allocated memory was 156.2 MB in the beginning and 286.3 MB in the end (delta: 130.0 MB). Free memory was 115.9 MB in the beginning and 151.5 MB in the end (delta: -35.7 MB). Peak memory consumption was 118.7 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:12,548 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory is still 132.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:27:12,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.81 ms. Allocated memory is still 156.2 MB. Free memory was 114.7 MB in the beginning and 128.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:12,549 INFO L168 Benchmark]: Boogie Preprocessor took 45.63 ms. Allocated memory is still 156.2 MB. Free memory was 128.9 MB in the beginning and 127.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:12,549 INFO L168 Benchmark]: RCFGBuilder took 737.80 ms. Allocated memory is still 156.2 MB. Free memory was 127.4 MB in the beginning and 116.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:12,550 INFO L168 Benchmark]: TraceAbstraction took 10860.50 ms. Allocated memory was 156.2 MB in the beginning and 286.3 MB in the end (delta: 130.0 MB). Free memory was 116.8 MB in the beginning and 151.5 MB in the end (delta: -34.7 MB). Peak memory consumption was 119.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:12,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory is still 132.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 451.81 ms. Allocated memory is still 156.2 MB. Free memory was 114.7 MB in the beginning and 128.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.63 ms. Allocated memory is still 156.2 MB. Free memory was 128.9 MB in the beginning and 127.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 737.80 ms. Allocated memory is still 156.2 MB. Free memory was 127.4 MB in the beginning and 116.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10860.50 ms. Allocated memory was 156.2 MB in the beginning and 286.3 MB in the end (delta: 130.0 MB). Free memory was 116.8 MB in the beginning and 151.5 MB in the end (delta: -34.7 MB). Peak memory consumption was 119.5 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: 8.0s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 941 SDtfs, 1948 SDslu, 201 SDs, 0 SdLazy, 1688 SolverSat, 170 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s 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, 1.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 697078 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s 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...