/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/forester-heap/dll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:39:07,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:39:07,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:39:07,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:39:07,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:39:07,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:39:07,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:39:07,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:39:07,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:39:07,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:39:07,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:39:07,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:39:07,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:39:07,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:39:07,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:39:07,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:39:07,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:39:07,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:39:07,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:39:07,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:39:07,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:39:07,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:39:07,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:39:07,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:39:07,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 13:39:07,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 13:39:07,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 13:39:07,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 13:39:07,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 13:39:07,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 13:39:07,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 13:39:07,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 13:39:07,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 13:39:07,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 13:39:07,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 13:39:07,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 13:39:07,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 13:39:07,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 13:39:07,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:39:07,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:39:07,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:39:07,573 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 [2021-02-23 13:39:07,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:39:07,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:39:07,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:39:07,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:39:07,607 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:39:07,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:39:07,607 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:39:07,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:39:07,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:39:07,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:39:07,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:39:07,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:39:07,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:39:07,609 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:39:07,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:39:07,609 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:39:07,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:39:07,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:39:07,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:39:07,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:39:07,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:39:07,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:39:07,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:39:07,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:39:07,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:39:07,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:39:07,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:39:07,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:39:07,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:39:07,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:39:08,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:39:08,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:39:08,009 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:39:08,010 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:39:08,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2021-02-23 13:39:08,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ef66bf5/05fcb03e802d47948cea84d318e4aae1/FLAG5b1a89fd8 [2021-02-23 13:39:08,789 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:39:08,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i [2021-02-23 13:39:08,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ef66bf5/05fcb03e802d47948cea84d318e4aae1/FLAG5b1a89fd8 [2021-02-23 13:39:09,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ef66bf5/05fcb03e802d47948cea84d318e4aae1 [2021-02-23 13:39:09,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:39:09,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:39:09,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:39:09,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:39:09,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:39:09,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:39:09" (1/1) ... [2021-02-23 13:39:09,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbeb01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09, skipping insertion in model container [2021-02-23 13:39:09,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:39:09" (1/1) ... [2021-02-23 13:39:09,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:39:09,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:39:09,463 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22080,22093] [2021-02-23 13:39:09,483 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22353,22366] [2021-02-23 13:39:09,488 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22587,22600] [2021-02-23 13:39:09,489 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22657,22670] [2021-02-23 13:39:09,494 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22924,22937] [2021-02-23 13:39:09,495 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23032,23045] [2021-02-23 13:39:09,502 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23263,23276] [2021-02-23 13:39:09,505 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23343,23356] [2021-02-23 13:39:09,507 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23422,23435] [2021-02-23 13:39:09,513 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23512,23525] [2021-02-23 13:39:09,516 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23690,23703] [2021-02-23 13:39:09,517 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23768,23781] [2021-02-23 13:39:09,519 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23845,23858] [2021-02-23 13:39:09,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:39:09,542 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:39:09,609 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22080,22093] [2021-02-23 13:39:09,615 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22353,22366] [2021-02-23 13:39:09,620 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22587,22600] [2021-02-23 13:39:09,621 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22657,22670] [2021-02-23 13:39:09,626 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[22924,22937] [2021-02-23 13:39:09,627 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23032,23045] [2021-02-23 13:39:09,632 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23263,23276] [2021-02-23 13:39:09,635 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23343,23356] [2021-02-23 13:39:09,636 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23422,23435] [2021-02-23 13:39:09,637 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23512,23525] [2021-02-23 13:39:09,640 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23690,23703] [2021-02-23 13:39:09,641 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23768,23781] [2021-02-23 13:39:09,644 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i[23845,23858] [2021-02-23 13:39:09,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:39:09,708 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:39:09,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09 WrapperNode [2021-02-23 13:39:09,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:39:09,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:39:09,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:39:09,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:39:09,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09" (1/1) ... [2021-02-23 13:39:09,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09" (1/1) ... [2021-02-23 13:39:09,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09" (1/1) ... [2021-02-23 13:39:09,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09" (1/1) ... [2021-02-23 13:39:09,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09" (1/1) ... [2021-02-23 13:39:09,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09" (1/1) ... [2021-02-23 13:39:09,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09" (1/1) ... [2021-02-23 13:39:09,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:39:09,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:39:09,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:39:09,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:39:09,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09" (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 [2021-02-23 13:39:09,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:39:09,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:39:09,884 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:39:09,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:39:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-23 13:39:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-23 13:39:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-23 13:39:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-23 13:39:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-23 13:39:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-23 13:39:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-23 13:39:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-23 13:39:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-23 13:39:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-23 13:39:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-23 13:39:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-23 13:39:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-23 13:39:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-23 13:39:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-23 13:39:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-23 13:39:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-23 13:39:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-23 13:39:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-23 13:39:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-23 13:39:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-23 13:39:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-23 13:39:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-23 13:39:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-23 13:39:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-23 13:39:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-23 13:39:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-23 13:39:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-23 13:39:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-23 13:39:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-23 13:39:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-23 13:39:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-23 13:39:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-23 13:39:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-23 13:39:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-23 13:39:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-23 13:39:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-23 13:39:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-23 13:39:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-23 13:39:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-23 13:39:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-23 13:39:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-23 13:39:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-23 13:39:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-23 13:39:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-23 13:39:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-23 13:39:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-23 13:39:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-23 13:39:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-23 13:39:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-23 13:39:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 13:39:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 13:39:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-23 13:39:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 13:39:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-23 13:39:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-23 13:39:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-23 13:39:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-23 13:39:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-23 13:39:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:39:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-23 13:39:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-23 13:39:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-23 13:39:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 13:39:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-23 13:39:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-23 13:39:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-23 13:39:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-23 13:39:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-23 13:39:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-23 13:39:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-23 13:39:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-23 13:39:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-23 13:39:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-23 13:39:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-23 13:39:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-23 13:39:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-23 13:39:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-23 13:39:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-23 13:39:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-23 13:39:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-23 13:39:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-23 13:39:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-23 13:39:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-23 13:39:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-23 13:39:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-23 13:39:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-23 13:39:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-23 13:39:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-23 13:39:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-23 13:39:09,905 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-23 13:39:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-23 13:39:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-23 13:39:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-23 13:39:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-23 13:39:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-23 13:39:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-23 13:39:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-23 13:39:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-23 13:39:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-23 13:39:09,908 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-23 13:39:09,908 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-23 13:39:09,908 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-23 13:39:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 13:39:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:39:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 13:39:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 13:39:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:39:09,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:39:09,911 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:39:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 13:39:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 13:39:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 13:39:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:39:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:39:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:39:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:39:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:39:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:39:10,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:39:10,746 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-02-23 13:39:10,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:39:10 BoogieIcfgContainer [2021-02-23 13:39:10,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:39:10,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:39:10,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:39:10,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:39:10,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:39:09" (1/3) ... [2021-02-23 13:39:10,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fa9c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:39:10, skipping insertion in model container [2021-02-23 13:39:10,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:09" (2/3) ... [2021-02-23 13:39:10,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fa9c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:39:10, skipping insertion in model container [2021-02-23 13:39:10,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:39:10" (3/3) ... [2021-02-23 13:39:10,758 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2021-02-23 13:39:10,766 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:39:10,773 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2021-02-23 13:39:10,796 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-02-23 13:39:10,829 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:39:10,829 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:39:10,829 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:39:10,829 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:39:10,830 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:39:10,830 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:39:10,830 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:39:10,830 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:39:10,855 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2021-02-23 13:39:10,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-02-23 13:39:10,861 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:10,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:10,863 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:10,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:10,870 INFO L82 PathProgramCache]: Analyzing trace with hash -422041064, now seen corresponding path program 1 times [2021-02-23 13:39:10,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:10,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190563199] [2021-02-23 13:39:10,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:11,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:11,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:11,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:11,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:39:11,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:11,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:11,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:11,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:11,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:11,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190563199] [2021-02-23 13:39:11,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:11,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:39:11,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851907460] [2021-02-23 13:39:11,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:39:11,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:11,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:39:11,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:11,188 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2021-02-23 13:39:11,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:11,578 INFO L93 Difference]: Finished difference Result 186 states and 302 transitions. [2021-02-23 13:39:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 13:39:11,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-02-23 13:39:11,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:11,598 INFO L225 Difference]: With dead ends: 186 [2021-02-23 13:39:11,598 INFO L226 Difference]: Without dead ends: 99 [2021-02-23 13:39:11,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:11,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-02-23 13:39:11,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2021-02-23 13:39:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2021-02-23 13:39:11,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2021-02-23 13:39:11,682 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 8 [2021-02-23 13:39:11,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:11,682 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2021-02-23 13:39:11,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:39:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2021-02-23 13:39:11,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-23 13:39:11,683 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:11,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:11,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:39:11,685 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:11,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:11,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1671475460, now seen corresponding path program 1 times [2021-02-23 13:39:11,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:11,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463848936] [2021-02-23 13:39:11,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:11,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:11,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:11,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:11,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:11,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:11,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:11,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:11,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:11,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:11,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463848936] [2021-02-23 13:39:11,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:11,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:39:11,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815915866] [2021-02-23 13:39:11,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:39:11,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:11,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:39:11,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:11,805 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand 4 states. [2021-02-23 13:39:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:11,991 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2021-02-23 13:39:11,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 13:39:11,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-02-23 13:39:11,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:11,995 INFO L225 Difference]: With dead ends: 84 [2021-02-23 13:39:11,995 INFO L226 Difference]: Without dead ends: 82 [2021-02-23 13:39:11,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-02-23 13:39:12,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-02-23 13:39:12,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2021-02-23 13:39:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2021-02-23 13:39:12,017 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 14 [2021-02-23 13:39:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:12,019 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2021-02-23 13:39:12,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:39:12,023 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2021-02-23 13:39:12,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-23 13:39:12,023 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:12,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:12,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 13:39:12,027 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:12,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:12,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1671477382, now seen corresponding path program 1 times [2021-02-23 13:39:12,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:12,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399353826] [2021-02-23 13:39:12,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:12,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:12,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 13:39:12,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:12,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:12,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:12,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:12,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399353826] [2021-02-23 13:39:12,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:12,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 13:39:12,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524164137] [2021-02-23 13:39:12,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 13:39:12,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:12,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 13:39:12,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:39:12,167 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2021-02-23 13:39:12,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:12,350 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2021-02-23 13:39:12,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 13:39:12,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-02-23 13:39:12,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:12,351 INFO L225 Difference]: With dead ends: 83 [2021-02-23 13:39:12,351 INFO L226 Difference]: Without dead ends: 81 [2021-02-23 13:39:12,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:39:12,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-02-23 13:39:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2021-02-23 13:39:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-02-23 13:39:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2021-02-23 13:39:12,362 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 14 [2021-02-23 13:39:12,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:12,362 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2021-02-23 13:39:12,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 13:39:12,362 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2021-02-23 13:39:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-23 13:39:12,363 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:12,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:12,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 13:39:12,364 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:12,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:12,365 INFO L82 PathProgramCache]: Analyzing trace with hash -740181574, now seen corresponding path program 1 times [2021-02-23 13:39:12,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:12,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749001420] [2021-02-23 13:39:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:12,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:12,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 13:39:12,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 13:39:12,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 13:39:12,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:39:12,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:12,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:12,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:12,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749001420] [2021-02-23 13:39:12,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:12,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 13:39:12,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541268815] [2021-02-23 13:39:12,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 13:39:12,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:12,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 13:39:12,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 13:39:12,636 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand 6 states. [2021-02-23 13:39:12,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:12,912 INFO L93 Difference]: Finished difference Result 124 states and 138 transitions. [2021-02-23 13:39:12,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 13:39:12,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2021-02-23 13:39:12,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:12,914 INFO L225 Difference]: With dead ends: 124 [2021-02-23 13:39:12,914 INFO L226 Difference]: Without dead ends: 120 [2021-02-23 13:39:12,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-23 13:39:12,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-02-23 13:39:12,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 75. [2021-02-23 13:39:12,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2021-02-23 13:39:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2021-02-23 13:39:12,923 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 19 [2021-02-23 13:39:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:12,923 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2021-02-23 13:39:12,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 13:39:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2021-02-23 13:39:12,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-23 13:39:12,924 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:12,924 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] [2021-02-23 13:39:12,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 13:39:12,925 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:12,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:12,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1470788107, now seen corresponding path program 1 times [2021-02-23 13:39:12,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:12,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112712497] [2021-02-23 13:39:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:12,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:12,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:39:12,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:39:12,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:12,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:12,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:12,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:13,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112712497] [2021-02-23 13:39:13,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:13,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 13:39:13,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099910855] [2021-02-23 13:39:13,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 13:39:13,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:13,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 13:39:13,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:39:13,003 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand 5 states. [2021-02-23 13:39:13,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:13,200 INFO L93 Difference]: Finished difference Result 134 states and 148 transitions. [2021-02-23 13:39:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 13:39:13,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2021-02-23 13:39:13,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:13,202 INFO L225 Difference]: With dead ends: 134 [2021-02-23 13:39:13,202 INFO L226 Difference]: Without dead ends: 114 [2021-02-23 13:39:13,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 13:39:13,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-02-23 13:39:13,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 74. [2021-02-23 13:39:13,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-02-23 13:39:13,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2021-02-23 13:39:13,210 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 20 [2021-02-23 13:39:13,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:13,210 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2021-02-23 13:39:13,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 13:39:13,210 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2021-02-23 13:39:13,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-23 13:39:13,211 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:13,211 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] [2021-02-23 13:39:13,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 13:39:13,212 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:13,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:13,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1304901536, now seen corresponding path program 1 times [2021-02-23 13:39:13,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:13,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732475017] [2021-02-23 13:39:13,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:13,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:39:13,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:13,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:13,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732475017] [2021-02-23 13:39:13,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:13,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:39:13,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216142362] [2021-02-23 13:39:13,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:39:13,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:13,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:39:13,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:13,279 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 4 states. [2021-02-23 13:39:13,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:13,432 INFO L93 Difference]: Finished difference Result 139 states and 157 transitions. [2021-02-23 13:39:13,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 13:39:13,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2021-02-23 13:39:13,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:13,433 INFO L225 Difference]: With dead ends: 139 [2021-02-23 13:39:13,433 INFO L226 Difference]: Without dead ends: 98 [2021-02-23 13:39:13,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-02-23 13:39:13,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 77. [2021-02-23 13:39:13,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-02-23 13:39:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2021-02-23 13:39:13,441 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 24 [2021-02-23 13:39:13,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:13,441 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2021-02-23 13:39:13,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:39:13,441 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2021-02-23 13:39:13,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-23 13:39:13,442 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:13,442 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] [2021-02-23 13:39:13,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 13:39:13,443 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:13,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:13,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1797237457, now seen corresponding path program 1 times [2021-02-23 13:39:13,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:13,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577846120] [2021-02-23 13:39:13,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:13,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 13:39:13,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:13,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:13,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577846120] [2021-02-23 13:39:13,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:13,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:39:13,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718891150] [2021-02-23 13:39:13,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:39:13,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:13,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:39:13,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:13,511 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand 4 states. [2021-02-23 13:39:13,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:13,644 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2021-02-23 13:39:13,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 13:39:13,645 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-02-23 13:39:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:13,646 INFO L225 Difference]: With dead ends: 77 [2021-02-23 13:39:13,646 INFO L226 Difference]: Without dead ends: 75 [2021-02-23 13:39:13,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:13,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-02-23 13:39:13,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-02-23 13:39:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2021-02-23 13:39:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2021-02-23 13:39:13,652 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 25 [2021-02-23 13:39:13,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:13,652 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2021-02-23 13:39:13,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:39:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2021-02-23 13:39:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-23 13:39:13,653 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:13,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:13,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 13:39:13,654 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:13,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:13,655 INFO L82 PathProgramCache]: Analyzing trace with hash -947223864, now seen corresponding path program 1 times [2021-02-23 13:39:13,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:13,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548166619] [2021-02-23 13:39:13,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:13,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:13,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:13,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548166619] [2021-02-23 13:39:13,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:13,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:39:13,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836133919] [2021-02-23 13:39:13,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:39:13,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:13,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:39:13,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:13,716 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 4 states. [2021-02-23 13:39:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:13,844 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2021-02-23 13:39:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 13:39:13,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2021-02-23 13:39:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:13,846 INFO L225 Difference]: With dead ends: 78 [2021-02-23 13:39:13,846 INFO L226 Difference]: Without dead ends: 76 [2021-02-23 13:39:13,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:13,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-02-23 13:39:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-02-23 13:39:13,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-02-23 13:39:13,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2021-02-23 13:39:13,851 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 27 [2021-02-23 13:39:13,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:13,851 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2021-02-23 13:39:13,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:39:13,852 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2021-02-23 13:39:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-23 13:39:13,853 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:13,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:13,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 13:39:13,853 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:13,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:13,854 INFO L82 PathProgramCache]: Analyzing trace with hash -947221942, now seen corresponding path program 1 times [2021-02-23 13:39:13,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:13,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668391681] [2021-02-23 13:39:13,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:13,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 13:39:13,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:13,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:13,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:13,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668391681] [2021-02-23 13:39:13,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:13,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 13:39:13,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324944842] [2021-02-23 13:39:13,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 13:39:13,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:13,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 13:39:13,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:39:13,936 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 5 states. [2021-02-23 13:39:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:14,126 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2021-02-23 13:39:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 13:39:14,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-02-23 13:39:14,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:14,128 INFO L225 Difference]: With dead ends: 77 [2021-02-23 13:39:14,128 INFO L226 Difference]: Without dead ends: 75 [2021-02-23 13:39:14,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:39:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-02-23 13:39:14,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2021-02-23 13:39:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-02-23 13:39:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2021-02-23 13:39:14,133 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 27 [2021-02-23 13:39:14,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:14,133 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2021-02-23 13:39:14,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 13:39:14,133 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2021-02-23 13:39:14,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 13:39:14,134 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:14,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:14,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 13:39:14,135 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:14,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:14,135 INFO L82 PathProgramCache]: Analyzing trace with hash 442870869, now seen corresponding path program 1 times [2021-02-23 13:39:14,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:14,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160249930] [2021-02-23 13:39:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:14,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:14,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:14,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:14,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 13:39:14,234 WARN L141 QuantifierPusher]: treesize reduction 10, result has 81.1 percent of original size [2021-02-23 13:39:14,235 WARN L147 QuantifierPusher]: treesize reduction 10, result has 81.1 percent of original size 43 [2021-02-23 13:39:14,250 WARN L141 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-02-23 13:39:14,251 WARN L147 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size 39 [2021-02-23 13:39:14,266 WARN L141 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-02-23 13:39:14,267 WARN L147 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size 22 [2021-02-23 13:39:14,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:14,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:39:14,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:14,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:14,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:14,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:14,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:14,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160249930] [2021-02-23 13:39:14,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:14,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 13:39:14,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388627216] [2021-02-23 13:39:14,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 13:39:14,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:14,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 13:39:14,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-23 13:39:14,342 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand 8 states. [2021-02-23 13:39:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:15,062 INFO L93 Difference]: Finished difference Result 227 states and 252 transitions. [2021-02-23 13:39:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 13:39:15,063 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2021-02-23 13:39:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:15,066 INFO L225 Difference]: With dead ends: 227 [2021-02-23 13:39:15,066 INFO L226 Difference]: Without dead ends: 225 [2021-02-23 13:39:15,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-02-23 13:39:15,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-02-23 13:39:15,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 90. [2021-02-23 13:39:15,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-02-23 13:39:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2021-02-23 13:39:15,076 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 28 [2021-02-23 13:39:15,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:15,076 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2021-02-23 13:39:15,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 13:39:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2021-02-23 13:39:15,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 13:39:15,078 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:15,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:15,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 13:39:15,078 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:15,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:15,079 INFO L82 PathProgramCache]: Analyzing trace with hash 2131814611, now seen corresponding path program 1 times [2021-02-23 13:39:15,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:15,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64137930] [2021-02-23 13:39:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:15,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:15,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 13:39:15,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-23 13:39:15,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:15,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:15,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:15,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:15,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64137930] [2021-02-23 13:39:15,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:15,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 13:39:15,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259124747] [2021-02-23 13:39:15,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 13:39:15,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:15,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 13:39:15,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-23 13:39:15,149 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 5 states. [2021-02-23 13:39:15,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:15,466 INFO L93 Difference]: Finished difference Result 199 states and 226 transitions. [2021-02-23 13:39:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 13:39:15,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2021-02-23 13:39:15,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:15,468 INFO L225 Difference]: With dead ends: 199 [2021-02-23 13:39:15,469 INFO L226 Difference]: Without dead ends: 138 [2021-02-23 13:39:15,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 13:39:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-02-23 13:39:15,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 90. [2021-02-23 13:39:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-02-23 13:39:15,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2021-02-23 13:39:15,476 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 28 [2021-02-23 13:39:15,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:15,476 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2021-02-23 13:39:15,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 13:39:15,477 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2021-02-23 13:39:15,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 13:39:15,478 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:15,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:15,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 13:39:15,478 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:15,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:15,479 INFO L82 PathProgramCache]: Analyzing trace with hash 543466709, now seen corresponding path program 1 times [2021-02-23 13:39:15,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:15,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93995527] [2021-02-23 13:39:15,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:15,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:15,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 13:39:15,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 13:39:15,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 13:39:15,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:39:15,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:15,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:15,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:15,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:15,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:15,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93995527] [2021-02-23 13:39:15,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:15,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 13:39:15,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066108219] [2021-02-23 13:39:15,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 13:39:15,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:15,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 13:39:15,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 13:39:15,584 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand 7 states. [2021-02-23 13:39:16,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:16,027 INFO L93 Difference]: Finished difference Result 206 states and 234 transitions. [2021-02-23 13:39:16,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 13:39:16,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2021-02-23 13:39:16,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:16,029 INFO L225 Difference]: With dead ends: 206 [2021-02-23 13:39:16,029 INFO L226 Difference]: Without dead ends: 159 [2021-02-23 13:39:16,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-23 13:39:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-02-23 13:39:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 97. [2021-02-23 13:39:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-02-23 13:39:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2021-02-23 13:39:16,038 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 28 [2021-02-23 13:39:16,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:16,038 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2021-02-23 13:39:16,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 13:39:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2021-02-23 13:39:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-23 13:39:16,040 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:16,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:16,040 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 13:39:16,040 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:16,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:16,041 INFO L82 PathProgramCache]: Analyzing trace with hash -242151861, now seen corresponding path program 1 times [2021-02-23 13:39:16,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:16,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184189461] [2021-02-23 13:39:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:16,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:16,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:16,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:16,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 13:39:16,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:16,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:16,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:16,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:16,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 13:39:16,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184189461] [2021-02-23 13:39:16,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:16,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 13:39:16,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913748472] [2021-02-23 13:39:16,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 13:39:16,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:16,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 13:39:16,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:16,140 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand 4 states. [2021-02-23 13:39:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:16,325 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2021-02-23 13:39:16,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 13:39:16,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-02-23 13:39:16,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:16,327 INFO L225 Difference]: With dead ends: 97 [2021-02-23 13:39:16,327 INFO L226 Difference]: Without dead ends: 95 [2021-02-23 13:39:16,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 13:39:16,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-02-23 13:39:16,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-02-23 13:39:16,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2021-02-23 13:39:16,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-02-23 13:39:16,336 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 30 [2021-02-23 13:39:16,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:16,337 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-02-23 13:39:16,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 13:39:16,337 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-02-23 13:39:16,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-23 13:39:16,338 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:16,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:16,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 13:39:16,338 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_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]=== [2021-02-23 13:39:16,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:16,339 INFO L82 PathProgramCache]: Analyzing trace with hash -569355741, now seen corresponding path program 1 times [2021-02-23 13:39:16,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:16,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648545618] [2021-02-23 13:39:16,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:39:16,359 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:39:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:39:16,377 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:39:16,410 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:39:16,410 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:39:16,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 13:39:16,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:39:16 BoogieIcfgContainer [2021-02-23 13:39:16,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:39:16,456 INFO L168 Benchmark]: Toolchain (without parser) took 7409.31 ms. Allocated memory was 153.1 MB in the beginning and 238.0 MB in the end (delta: 84.9 MB). Free memory was 126.4 MB in the beginning and 176.9 MB in the end (delta: -50.5 MB). Peak memory consumption was 34.8 MB. Max. memory is 8.0 GB. [2021-02-23 13:39:16,456 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 108.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:39:16,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.75 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 100.8 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:39:16,457 INFO L168 Benchmark]: Boogie Preprocessor took 77.10 ms. Allocated memory is still 153.1 MB. Free memory was 100.8 MB in the beginning and 97.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:39:16,458 INFO L168 Benchmark]: RCFGBuilder took 961.18 ms. Allocated memory is still 153.1 MB. Free memory was 97.5 MB in the beginning and 86.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:39:16,458 INFO L168 Benchmark]: TraceAbstraction took 5704.22 ms. Allocated memory was 153.1 MB in the beginning and 238.0 MB in the end (delta: 84.9 MB). Free memory was 86.1 MB in the beginning and 176.9 MB in the end (delta: -90.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:39:16,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 108.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 650.75 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 100.8 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 77.10 ms. Allocated memory is still 153.1 MB. Free memory was 100.8 MB in the beginning and 97.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 961.18 ms. Allocated memory is still 153.1 MB. Free memory was 97.5 MB in the beginning and 86.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5704.22 ms. Allocated memory was 153.1 MB in the beginning and 238.0 MB in the end (delta: 84.9 MB). Free memory was 86.1 MB in the beginning and 176.9 MB in the end (delta: -90.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1040]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1003] SLL* list = malloc(sizeof(SLL)); [L1004] list->next = ((void*)0) [L1005] list->prev = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(!(list != ((void*)0))) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1006] list->inner = malloc(sizeof(SLL)) [L1006] EXPR list->inner [L1006] list->inner->next = ((void*)0) [L1006] EXPR list->inner [L1006] list->inner->inner = ((void*)0) [L1006] EXPR list->inner [L1006] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, list->inner != ((void*)0) || list->inner == ((void*)0)=1, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1006] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1008] SLL* end = list; VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1022] end = ((void*)0) [L1023] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1026] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1028] COND TRUE ((void*)0) != end [L1030] int len = 0; [L1031] EXPR end->inner [L1031] SLL* inner = end->inner; [L1032] COND TRUE ((void*)0) != inner VAL [end={-1:0}, inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1034] COND TRUE len == 0 [L1035] len = 1 VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1038] COND FALSE !(!(((void*)0) != inner)) VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1039] EXPR inner->inner VAL [end={-1:0}, inner={-2:0}, inner->inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1039] COND FALSE !(!(((void*)0) == inner->inner)) [L1040] EXPR inner->next VAL [end={-1:0}, inner={-2:0}, inner->next={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1040] COND TRUE !(((void*)0) != inner->next) [L1040] reach_error() VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.5s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1023 SDtfs, 922 SDslu, 1282 SDs, 0 SdLazy, 1763 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=12, 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, 13 MinimizatonAttempts, 373 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 37949 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 1/1 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 incorrect! Received shutdown request...