/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-19 22:28:29,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 22:28:29,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 22:28:29,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 22:28:29,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 22:28:29,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 22:28:29,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 22:28:29,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 22:28:29,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 22:28:29,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 22:28:29,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 22:28:29,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-03-19 22:28:29,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 22:28:29,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 22:28:29,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 22:28:29,180 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 [2022-03-19 22:28:29,205 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 22:28:29,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 22:28:29,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-19 22:28:29,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-19 22:28:29,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-19 22:28:29,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-19 22:28:29,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-19 22:28:29,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-19 22:28:29,207 INFO L138 SettingsManager]: * Use SBE=true [2022-03-19 22:28:29,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 22:28:29,208 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-19 22:28:29,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 22:28:29,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-19 22:28:29,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 22:28:29,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 22:28:29,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 22:28:29,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 22:28:29,209 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-19 22:28:29,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 22:28:29,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 22:28:29,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 22:28:29,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 22:28:29,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 22:28:29,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 22:28:29,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 22:28:29,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 22:28:29,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-19 22:28:29,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-19 22:28:29,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-19 22:28:29,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-19 22:28:29,211 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-19 22:28:29,211 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-19 22:28:29,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 22:28:29,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 22:28:29,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 22:28:29,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 22:28:29,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 22:28:29,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 22:28:29,378 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 22:28:29,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2022-03-19 22:28:29,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749666a49/a8686039401e47759998f242f809a8c1/FLAGb1017f8ec [2022-03-19 22:28:29,751 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 22:28:29,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2022-03-19 22:28:29,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749666a49/a8686039401e47759998f242f809a8c1/FLAGb1017f8ec [2022-03-19 22:28:30,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749666a49/a8686039401e47759998f242f809a8c1 [2022-03-19 22:28:30,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 22:28:30,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 22:28:30,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 22:28:30,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 22:28:30,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 22:28:30,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5522de12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30, skipping insertion in model container [2022-03-19 22:28:30,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 22:28:30,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 22:28:30,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2022-03-19 22:28:30,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2022-03-19 22:28:30,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2022-03-19 22:28:30,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2022-03-19 22:28:30,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2022-03-19 22:28:30,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2022-03-19 22:28:30,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2022-03-19 22:28:30,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2022-03-19 22:28:30,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2022-03-19 22:28:30,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2022-03-19 22:28:30,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2022-03-19 22:28:30,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2022-03-19 22:28:30,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2022-03-19 22:28:30,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2022-03-19 22:28:30,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2022-03-19 22:28:30,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2022-03-19 22:28:30,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2022-03-19 22:28:30,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2022-03-19 22:28:30,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 22:28:30,340 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 22:28:30,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2022-03-19 22:28:30,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2022-03-19 22:28:30,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2022-03-19 22:28:30,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2022-03-19 22:28:30,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2022-03-19 22:28:30,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2022-03-19 22:28:30,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2022-03-19 22:28:30,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2022-03-19 22:28:30,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2022-03-19 22:28:30,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2022-03-19 22:28:30,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2022-03-19 22:28:30,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2022-03-19 22:28:30,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2022-03-19 22:28:30,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2022-03-19 22:28:30,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2022-03-19 22:28:30,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2022-03-19 22:28:30,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2022-03-19 22:28:30,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2022-03-19 22:28:30,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 22:28:30,377 INFO L208 MainTranslator]: Completed translation [2022-03-19 22:28:30,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30 WrapperNode [2022-03-19 22:28:30,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 22:28:30,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 22:28:30,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 22:28:30,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 22:28:30,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 22:28:30,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 22:28:30,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 22:28:30,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 22:28:30,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30" (1/1) ... [2022-03-19 22:28:30,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 22:28:30,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 22:28:30,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 22:28:30,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 22:28:30,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 22:28:30,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 22:28:30,447 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 22:28:30,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-19 22:28:30,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 22:28:30,447 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 22:28:30,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 22:28:30,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 22:28:30,496 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 22:28:30,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 22:28:30,707 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 22:28:30,711 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 22:28:30,712 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-19 22:28:30,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:28:30 BoogieIcfgContainer [2022-03-19 22:28:30,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 22:28:30,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 22:28:30,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 22:28:30,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 22:28:30,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 10:28:30" (1/3) ... [2022-03-19 22:28:30,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ae51cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:28:30, skipping insertion in model container [2022-03-19 22:28:30,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:28:30" (2/3) ... [2022-03-19 22:28:30,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ae51cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:28:30, skipping insertion in model container [2022-03-19 22:28:30,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:28:30" (3/3) ... [2022-03-19 22:28:30,718 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2022-03-19 22:28:30,721 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-19 22:28:30,721 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-03-19 22:28:30,769 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 22:28:30,777 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 22:28:30,778 INFO L341 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-03-19 22:28:30,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 64 states have (on average 1.875) internal successors, (120), 82 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-19 22:28:30,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-19 22:28:30,806 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:30,806 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:30,807 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:30,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:30,813 INFO L85 PathProgramCache]: Analyzing trace with hash 129930232, now seen corresponding path program 1 times [2022-03-19 22:28:30,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:30,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902368019] [2022-03-19 22:28:30,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:30,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:31,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:31,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902368019] [2022-03-19 22:28:31,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902368019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:31,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:31,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 22:28:31,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368767701] [2022-03-19 22:28:31,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:31,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 22:28:31,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:31,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 22:28:31,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 22:28:31,038 INFO L87 Difference]: Start difference. First operand has 87 states, 64 states have (on average 1.875) internal successors, (120), 82 states have internal predecessors, (120), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:31,133 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2022-03-19 22:28:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 22:28:31,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-03-19 22:28:31,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:31,143 INFO L225 Difference]: With dead ends: 93 [2022-03-19 22:28:31,144 INFO L226 Difference]: Without dead ends: 80 [2022-03-19 22:28:31,145 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-19 22:28:31,150 INFO L913 BasicCegarLoop]: 94 mSDtfsCounter, 170 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:31,154 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 105 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-19 22:28:31,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-03-19 22:28:31,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-03-19 22:28:31,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 76 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2022-03-19 22:28:31,187 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2022-03-19 22:28:31,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:31,187 INFO L478 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2022-03-19 22:28:31,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,188 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2022-03-19 22:28:31,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-19 22:28:31,189 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:31,189 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:31,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 22:28:31,189 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:31,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:31,192 INFO L85 PathProgramCache]: Analyzing trace with hash -267127005, now seen corresponding path program 1 times [2022-03-19 22:28:31,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:31,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855763291] [2022-03-19 22:28:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:31,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:31,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:31,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855763291] [2022-03-19 22:28:31,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855763291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:31,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:31,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 22:28:31,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541219899] [2022-03-19 22:28:31,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:31,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 22:28:31,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:31,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 22:28:31,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-19 22:28:31,315 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:31,432 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2022-03-19 22:28:31,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-19 22:28:31,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-03-19 22:28:31,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:31,435 INFO L225 Difference]: With dead ends: 80 [2022-03-19 22:28:31,435 INFO L226 Difference]: Without dead ends: 78 [2022-03-19 22:28:31,436 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-19 22:28:31,437 INFO L913 BasicCegarLoop]: 57 mSDtfsCounter, 319 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:31,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 74 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:31,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-03-19 22:28:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-03-19 22:28:31,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 74 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2022-03-19 22:28:31,451 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2022-03-19 22:28:31,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:31,451 INFO L478 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2022-03-19 22:28:31,451 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,451 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2022-03-19 22:28:31,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-19 22:28:31,452 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:31,452 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:31,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 22:28:31,452 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:31,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash 989082342, now seen corresponding path program 1 times [2022-03-19 22:28:31,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:31,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217885792] [2022-03-19 22:28:31,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:31,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:31,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:31,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217885792] [2022-03-19 22:28:31,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217885792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:31,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:31,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 22:28:31,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325282300] [2022-03-19 22:28:31,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:31,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 22:28:31,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:31,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 22:28:31,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 22:28:31,511 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:31,645 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2022-03-19 22:28:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:28:31,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-03-19 22:28:31,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:31,648 INFO L225 Difference]: With dead ends: 101 [2022-03-19 22:28:31,648 INFO L226 Difference]: Without dead ends: 99 [2022-03-19 22:28:31,649 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-19 22:28:31,651 INFO L913 BasicCegarLoop]: 66 mSDtfsCounter, 207 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:31,652 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 78 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:31,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-03-19 22:28:31,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2022-03-19 22:28:31,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 72 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2022-03-19 22:28:31,667 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2022-03-19 22:28:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:31,667 INFO L478 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2022-03-19 22:28:31,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,668 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2022-03-19 22:28:31,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-19 22:28:31,668 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:31,668 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:31,668 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 22:28:31,668 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:31,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:31,669 INFO L85 PathProgramCache]: Analyzing trace with hash 596784644, now seen corresponding path program 1 times [2022-03-19 22:28:31,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:31,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150296112] [2022-03-19 22:28:31,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:31,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:31,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:31,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150296112] [2022-03-19 22:28:31,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150296112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:31,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:31,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:31,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565207894] [2022-03-19 22:28:31,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:31,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:31,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:31,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:31,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:31,715 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:31,811 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2022-03-19 22:28:31,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:28:31,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-03-19 22:28:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:31,813 INFO L225 Difference]: With dead ends: 76 [2022-03-19 22:28:31,813 INFO L226 Difference]: Without dead ends: 74 [2022-03-19 22:28:31,813 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-19 22:28:31,815 INFO L913 BasicCegarLoop]: 53 mSDtfsCounter, 234 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:31,816 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 70 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-19 22:28:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-03-19 22:28:31,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-03-19 22:28:31,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 70 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2022-03-19 22:28:31,825 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2022-03-19 22:28:31,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:31,825 INFO L478 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2022-03-19 22:28:31,825 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:31,826 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2022-03-19 22:28:31,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-19 22:28:31,826 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:31,826 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:31,826 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 22:28:31,826 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:31,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:31,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1944836287, now seen corresponding path program 1 times [2022-03-19 22:28:31,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:31,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201872972] [2022-03-19 22:28:31,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:31,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:31,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:31,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:31,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201872972] [2022-03-19 22:28:31,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201872972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:31,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:31,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:31,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756886678] [2022-03-19 22:28:31,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:31,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:31,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:31,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:31,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:31,896 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:32,164 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2022-03-19 22:28:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 22:28:32,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-03-19 22:28:32,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:32,166 INFO L225 Difference]: With dead ends: 141 [2022-03-19 22:28:32,166 INFO L226 Difference]: Without dead ends: 139 [2022-03-19 22:28:32,166 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-19 22:28:32,167 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 235 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:32,167 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 125 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-19 22:28:32,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-03-19 22:28:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2022-03-19 22:28:32,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 73 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-03-19 22:28:32,172 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2022-03-19 22:28:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:32,172 INFO L478 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-03-19 22:28:32,172 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,172 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-03-19 22:28:32,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-19 22:28:32,173 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:32,173 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:32,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 22:28:32,173 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:32,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:32,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1948570096, now seen corresponding path program 1 times [2022-03-19 22:28:32,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:32,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590299736] [2022-03-19 22:28:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:32,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:32,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:32,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590299736] [2022-03-19 22:28:32,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590299736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:32,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:32,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:32,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406173230] [2022-03-19 22:28:32,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:32,233 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:32,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:32,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:32,235 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:32,410 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2022-03-19 22:28:32,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 22:28:32,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-03-19 22:28:32,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:32,411 INFO L225 Difference]: With dead ends: 108 [2022-03-19 22:28:32,411 INFO L226 Difference]: Without dead ends: 106 [2022-03-19 22:28:32,412 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-19 22:28:32,414 INFO L913 BasicCegarLoop]: 64 mSDtfsCounter, 220 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:32,415 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 81 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:32,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-03-19 22:28:32,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2022-03-19 22:28:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 75 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2022-03-19 22:28:32,423 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2022-03-19 22:28:32,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:32,424 INFO L478 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2022-03-19 22:28:32,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,424 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2022-03-19 22:28:32,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-19 22:28:32,425 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:32,425 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:32,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 22:28:32,425 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:32,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:32,426 INFO L85 PathProgramCache]: Analyzing trace with hash 160385998, now seen corresponding path program 1 times [2022-03-19 22:28:32,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:32,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006943194] [2022-03-19 22:28:32,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:32,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:32,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:32,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:32,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:32,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006943194] [2022-03-19 22:28:32,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006943194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:32,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:32,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:32,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070421950] [2022-03-19 22:28:32,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:32,500 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:32,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:32,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:32,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:32,501 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:32,648 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2022-03-19 22:28:32,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:28:32,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-03-19 22:28:32,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:32,649 INFO L225 Difference]: With dead ends: 121 [2022-03-19 22:28:32,649 INFO L226 Difference]: Without dead ends: 119 [2022-03-19 22:28:32,649 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-19 22:28:32,650 INFO L913 BasicCegarLoop]: 87 mSDtfsCounter, 215 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:32,650 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 104 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:32,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-03-19 22:28:32,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2022-03-19 22:28:32,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 73 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-03-19 22:28:32,655 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2022-03-19 22:28:32,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:32,655 INFO L478 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-03-19 22:28:32,655 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-03-19 22:28:32,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-19 22:28:32,656 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:32,656 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:32,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 22:28:32,656 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:32,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:32,657 INFO L85 PathProgramCache]: Analyzing trace with hash 276133967, now seen corresponding path program 1 times [2022-03-19 22:28:32,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:32,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064913967] [2022-03-19 22:28:32,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:32,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:32,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:32,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:32,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:32,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064913967] [2022-03-19 22:28:32,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064913967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:32,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:32,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:32,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960133965] [2022-03-19 22:28:32,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:32,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:32,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:32,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:32,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:32,715 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:32,815 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2022-03-19 22:28:32,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:28:32,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-03-19 22:28:32,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:32,816 INFO L225 Difference]: With dead ends: 77 [2022-03-19 22:28:32,816 INFO L226 Difference]: Without dead ends: 75 [2022-03-19 22:28:32,816 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-19 22:28:32,816 INFO L913 BasicCegarLoop]: 53 mSDtfsCounter, 197 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:32,818 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 70 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-19 22:28:32,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-03-19 22:28:32,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-03-19 22:28:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 71 states have internal predecessors, (77), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2022-03-19 22:28:32,824 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2022-03-19 22:28:32,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:32,824 INFO L478 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2022-03-19 22:28:32,825 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,825 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2022-03-19 22:28:32,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-19 22:28:32,829 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:32,829 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:32,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 22:28:32,830 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:32,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:32,830 INFO L85 PathProgramCache]: Analyzing trace with hash -923129547, now seen corresponding path program 1 times [2022-03-19 22:28:32,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:32,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509500475] [2022-03-19 22:28:32,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:32,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:32,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:32,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509500475] [2022-03-19 22:28:32,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509500475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:32,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:32,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 22:28:32,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266525188] [2022-03-19 22:28:32,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:32,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 22:28:32,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:32,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 22:28:32,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 22:28:32,880 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:32,951 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2022-03-19 22:28:32,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 22:28:32,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-03-19 22:28:32,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:32,952 INFO L225 Difference]: With dead ends: 115 [2022-03-19 22:28:32,952 INFO L226 Difference]: Without dead ends: 75 [2022-03-19 22:28:32,953 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-19 22:28:32,954 INFO L913 BasicCegarLoop]: 71 mSDtfsCounter, 71 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:32,954 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 78 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:32,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-03-19 22:28:32,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-03-19 22:28:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.25) internal successors, (75), 71 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2022-03-19 22:28:32,964 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2022-03-19 22:28:32,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:32,965 INFO L478 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2022-03-19 22:28:32,965 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:32,965 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2022-03-19 22:28:32,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-19 22:28:32,966 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:32,966 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:32,967 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 22:28:32,967 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:32,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:32,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1988983653, now seen corresponding path program 1 times [2022-03-19 22:28:32,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:32,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325986247] [2022-03-19 22:28:32,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:32,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:33,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:33,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325986247] [2022-03-19 22:28:33,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325986247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:33,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:33,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:33,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200956727] [2022-03-19 22:28:33,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:33,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:33,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:33,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:33,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:33,032 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:33,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:33,104 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2022-03-19 22:28:33,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-19 22:28:33,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-19 22:28:33,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:33,107 INFO L225 Difference]: With dead ends: 76 [2022-03-19 22:28:33,108 INFO L226 Difference]: Without dead ends: 74 [2022-03-19 22:28:33,108 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-03-19 22:28:33,108 INFO L913 BasicCegarLoop]: 50 mSDtfsCounter, 183 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:33,108 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 62 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-19 22:28:33,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-03-19 22:28:33,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2022-03-19 22:28:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 69 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2022-03-19 22:28:33,111 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2022-03-19 22:28:33,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:33,111 INFO L478 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2022-03-19 22:28:33,112 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:33,112 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2022-03-19 22:28:33,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-19 22:28:33,112 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:33,112 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:33,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 22:28:33,112 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:33,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:33,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2054875672, now seen corresponding path program 1 times [2022-03-19 22:28:33,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:33,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460894130] [2022-03-19 22:28:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:33,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-19 22:28:33,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:33,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460894130] [2022-03-19 22:28:33,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460894130] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 22:28:33,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137521680] [2022-03-19 22:28:33,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:33,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 22:28:33,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 22:28:33,153 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 22:28:33,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-19 22:28:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-19 22:28:33,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 22:28:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-19 22:28:33,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 22:28:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-19 22:28:33,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137521680] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 22:28:33,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 22:28:33,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2022-03-19 22:28:33,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768341000] [2022-03-19 22:28:33,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-19 22:28:33,408 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 22:28:33,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:33,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 22:28:33,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-19 22:28:33,409 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:33,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:33,537 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2022-03-19 22:28:33,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-19 22:28:33,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-19 22:28:33,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:33,538 INFO L225 Difference]: With dead ends: 111 [2022-03-19 22:28:33,538 INFO L226 Difference]: Without dead ends: 109 [2022-03-19 22:28:33,539 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-19 22:28:33,539 INFO L913 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:33,539 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 97 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:33,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-03-19 22:28:33,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2022-03-19 22:28:33,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 66 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2022-03-19 22:28:33,544 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2022-03-19 22:28:33,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:33,544 INFO L478 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2022-03-19 22:28:33,544 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:33,544 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2022-03-19 22:28:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-19 22:28:33,545 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:33,545 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:33,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-19 22:28:33,759 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-19 22:28:33,759 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:33,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:33,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1528947946, now seen corresponding path program 1 times [2022-03-19 22:28:33,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:33,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083582793] [2022-03-19 22:28:33,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:33,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:33,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:33,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083582793] [2022-03-19 22:28:33,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083582793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:33,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:33,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:33,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094673666] [2022-03-19 22:28:33,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:33,794 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:33,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:33,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:33,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:33,794 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:33,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:33,882 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-03-19 22:28:33,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:28:33,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-03-19 22:28:33,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:33,883 INFO L225 Difference]: With dead ends: 70 [2022-03-19 22:28:33,883 INFO L226 Difference]: Without dead ends: 68 [2022-03-19 22:28:33,883 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-19 22:28:33,883 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 170 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:33,884 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 60 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-03-19 22:28:33,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-03-19 22:28:33,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 64 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:33,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2022-03-19 22:28:33,888 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2022-03-19 22:28:33,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:33,888 INFO L478 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2022-03-19 22:28:33,889 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:33,889 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2022-03-19 22:28:33,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-19 22:28:33,889 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:33,890 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:33,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 22:28:33,890 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:33,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:33,890 INFO L85 PathProgramCache]: Analyzing trace with hash -726812143, now seen corresponding path program 1 times [2022-03-19 22:28:33,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:33,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805997735] [2022-03-19 22:28:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:33,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-19 22:28:33,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:33,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805997735] [2022-03-19 22:28:33,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805997735] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 22:28:33,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397358502] [2022-03-19 22:28:33,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:33,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 22:28:33,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 22:28:33,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 22:28:33,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-19 22:28:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:33,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-19 22:28:33,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 22:28:34,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-19 22:28:34,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 22:28:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-19 22:28:34,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397358502] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 22:28:34,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 22:28:34,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2022-03-19 22:28:34,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062130215] [2022-03-19 22:28:34,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-19 22:28:34,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 22:28:34,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:34,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 22:28:34,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-19 22:28:34,117 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:34,188 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2022-03-19 22:28:34,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-19 22:28:34,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-03-19 22:28:34,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:34,189 INFO L225 Difference]: With dead ends: 69 [2022-03-19 22:28:34,189 INFO L226 Difference]: Without dead ends: 67 [2022-03-19 22:28:34,189 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-19 22:28:34,189 INFO L913 BasicCegarLoop]: 44 mSDtfsCounter, 166 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:34,190 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 61 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-19 22:28:34,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-03-19 22:28:34,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2022-03-19 22:28:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.196078431372549) internal successors, (61), 58 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2022-03-19 22:28:34,192 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2022-03-19 22:28:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:34,193 INFO L478 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2022-03-19 22:28:34,193 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2022-03-19 22:28:34,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-03-19 22:28:34,193 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:34,193 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:34,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-19 22:28:34,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-19 22:28:34,410 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:34,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:34,411 INFO L85 PathProgramCache]: Analyzing trace with hash -756981884, now seen corresponding path program 1 times [2022-03-19 22:28:34,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:34,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586447831] [2022-03-19 22:28:34,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:34,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:34,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:34,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586447831] [2022-03-19 22:28:34,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586447831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:34,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:34,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:34,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481067759] [2022-03-19 22:28:34,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:34,454 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:34,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:34,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:34,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:34,454 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:34,517 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2022-03-19 22:28:34,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-19 22:28:34,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-03-19 22:28:34,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:34,518 INFO L225 Difference]: With dead ends: 63 [2022-03-19 22:28:34,518 INFO L226 Difference]: Without dead ends: 61 [2022-03-19 22:28:34,518 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-03-19 22:28:34,519 INFO L913 BasicCegarLoop]: 42 mSDtfsCounter, 149 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:34,519 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 54 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-19 22:28:34,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-03-19 22:28:34,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-03-19 22:28:34,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.18) internal successors, (59), 56 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2022-03-19 22:28:34,521 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2022-03-19 22:28:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:34,522 INFO L478 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2022-03-19 22:28:34,522 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2022-03-19 22:28:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-19 22:28:34,523 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:34,523 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:34,523 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 22:28:34,523 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:34,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:34,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1991598751, now seen corresponding path program 1 times [2022-03-19 22:28:34,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:34,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175663296] [2022-03-19 22:28:34,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:34,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:34,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:34,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:34,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175663296] [2022-03-19 22:28:34,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175663296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:34,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:34,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 22:28:34,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393959796] [2022-03-19 22:28:34,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:34,572 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 22:28:34,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:34,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 22:28:34,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-19 22:28:34,572 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:34,660 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2022-03-19 22:28:34,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-19 22:28:34,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-03-19 22:28:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:34,661 INFO L225 Difference]: With dead ends: 71 [2022-03-19 22:28:34,661 INFO L226 Difference]: Without dead ends: 69 [2022-03-19 22:28:34,661 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-19 22:28:34,662 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 153 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:34,662 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 62 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:34,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-03-19 22:28:34,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2022-03-19 22:28:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.163265306122449) internal successors, (57), 54 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2022-03-19 22:28:34,665 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2022-03-19 22:28:34,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:34,665 INFO L478 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2022-03-19 22:28:34,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2022-03-19 22:28:34,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-03-19 22:28:34,666 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:34,666 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:34,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 22:28:34,666 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:34,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:34,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1037071699, now seen corresponding path program 1 times [2022-03-19 22:28:34,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:34,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271820669] [2022-03-19 22:28:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:34,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:34,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:34,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271820669] [2022-03-19 22:28:34,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271820669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:34,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:34,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:34,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714573245] [2022-03-19 22:28:34,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:34,713 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:34,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:34,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:34,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:34,714 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:34,864 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2022-03-19 22:28:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 22:28:34,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-03-19 22:28:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:34,865 INFO L225 Difference]: With dead ends: 91 [2022-03-19 22:28:34,865 INFO L226 Difference]: Without dead ends: 89 [2022-03-19 22:28:34,866 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-19 22:28:34,866 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 178 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:34,866 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 60 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:34,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-03-19 22:28:34,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2022-03-19 22:28:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 57 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2022-03-19 22:28:34,870 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2022-03-19 22:28:34,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:34,870 INFO L478 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2022-03-19 22:28:34,870 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:34,870 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2022-03-19 22:28:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-19 22:28:34,870 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:34,870 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:34,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 22:28:34,871 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr11ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:34,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:34,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2084448405, now seen corresponding path program 1 times [2022-03-19 22:28:34,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:34,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575424479] [2022-03-19 22:28:34,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:34,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:34,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:34,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:34,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:34,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575424479] [2022-03-19 22:28:34,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575424479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:34,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:34,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:34,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785322123] [2022-03-19 22:28:34,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:34,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:34,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:34,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:34,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:34,916 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:35,013 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2022-03-19 22:28:35,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:28:35,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-03-19 22:28:35,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:35,013 INFO L225 Difference]: With dead ends: 61 [2022-03-19 22:28:35,013 INFO L226 Difference]: Without dead ends: 59 [2022-03-19 22:28:35,014 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-19 22:28:35,014 INFO L913 BasicCegarLoop]: 50 mSDtfsCounter, 110 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:35,014 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 67 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-19 22:28:35,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-03-19 22:28:35,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-03-19 22:28:35,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 55 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2022-03-19 22:28:35,017 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2022-03-19 22:28:35,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:35,018 INFO L478 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2022-03-19 22:28:35,018 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,018 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2022-03-19 22:28:35,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-03-19 22:28:35,018 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:35,018 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:35,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 22:28:35,018 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr12ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:35,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:35,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1700057906, now seen corresponding path program 1 times [2022-03-19 22:28:35,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:35,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351320039] [2022-03-19 22:28:35,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:35,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:35,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:35,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:35,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:35,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351320039] [2022-03-19 22:28:35,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351320039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:35,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:35,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 22:28:35,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450676846] [2022-03-19 22:28:35,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:35,060 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 22:28:35,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:35,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 22:28:35,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 22:28:35,061 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:35,138 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-03-19 22:28:35,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:28:35,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-03-19 22:28:35,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:35,139 INFO L225 Difference]: With dead ends: 70 [2022-03-19 22:28:35,139 INFO L226 Difference]: Without dead ends: 68 [2022-03-19 22:28:35,139 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-19 22:28:35,140 INFO L913 BasicCegarLoop]: 65 mSDtfsCounter, 74 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:35,140 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 77 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-03-19 22:28:35,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2022-03-19 22:28:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.12) internal successors, (56), 53 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2022-03-19 22:28:35,143 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 41 [2022-03-19 22:28:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:35,143 INFO L478 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2022-03-19 22:28:35,143 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,144 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2022-03-19 22:28:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-19 22:28:35,144 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:35,144 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:35,144 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 22:28:35,144 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:35,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1162184327, now seen corresponding path program 1 times [2022-03-19 22:28:35,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:35,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161278643] [2022-03-19 22:28:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:35,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:35,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:35,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:35,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161278643] [2022-03-19 22:28:35,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161278643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:35,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:35,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:35,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962390448] [2022-03-19 22:28:35,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:35,173 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:35,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:35,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:35,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:35,174 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:35,259 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2022-03-19 22:28:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:28:35,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-19 22:28:35,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:35,260 INFO L225 Difference]: With dead ends: 66 [2022-03-19 22:28:35,260 INFO L226 Difference]: Without dead ends: 64 [2022-03-19 22:28:35,260 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-19 22:28:35,260 INFO L913 BasicCegarLoop]: 57 mSDtfsCounter, 91 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:35,261 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 74 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:35,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-03-19 22:28:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2022-03-19 22:28:35,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 51 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2022-03-19 22:28:35,264 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 42 [2022-03-19 22:28:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:35,264 INFO L478 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2022-03-19 22:28:35,264 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,264 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2022-03-19 22:28:35,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-19 22:28:35,264 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:35,264 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:35,265 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-19 22:28:35,265 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:35,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:35,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1667972556, now seen corresponding path program 1 times [2022-03-19 22:28:35,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:35,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253689798] [2022-03-19 22:28:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:35,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:35,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:35,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:35,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253689798] [2022-03-19 22:28:35,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253689798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:35,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:35,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:35,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944600841] [2022-03-19 22:28:35,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:35,303 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:35,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:35,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:35,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:35,304 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:35,456 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2022-03-19 22:28:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 22:28:35,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-19 22:28:35,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:35,457 INFO L225 Difference]: With dead ends: 88 [2022-03-19 22:28:35,457 INFO L226 Difference]: Without dead ends: 86 [2022-03-19 22:28:35,458 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-19 22:28:35,458 INFO L913 BasicCegarLoop]: 45 mSDtfsCounter, 123 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:35,458 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 62 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:35,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-03-19 22:28:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 60. [2022-03-19 22:28:35,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 56 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2022-03-19 22:28:35,461 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 43 [2022-03-19 22:28:35,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:35,462 INFO L478 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-03-19 22:28:35,462 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,462 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2022-03-19 22:28:35,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-19 22:28:35,462 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:35,462 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:35,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-19 22:28:35,462 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:35,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:35,463 INFO L85 PathProgramCache]: Analyzing trace with hash 651621684, now seen corresponding path program 1 times [2022-03-19 22:28:35,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:35,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199291616] [2022-03-19 22:28:35,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:35,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:35,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:35,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:35,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199291616] [2022-03-19 22:28:35,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199291616] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 22:28:35,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289472073] [2022-03-19 22:28:35,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:35,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 22:28:35,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 22:28:35,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 22:28:35,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-19 22:28:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:35,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-19 22:28:35,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 22:28:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:35,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 22:28:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:35,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289472073] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 22:28:35,699 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 22:28:35,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2022-03-19 22:28:35,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425021763] [2022-03-19 22:28:35,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-19 22:28:35,701 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 22:28:35,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:35,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 22:28:35,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-19 22:28:35,702 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:35,787 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2022-03-19 22:28:35,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-19 22:28:35,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-19 22:28:35,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:35,788 INFO L225 Difference]: With dead ends: 60 [2022-03-19 22:28:35,788 INFO L226 Difference]: Without dead ends: 58 [2022-03-19 22:28:35,788 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 7 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-19 22:28:35,789 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 97 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:35,789 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 49 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-19 22:28:35,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-03-19 22:28:35,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-03-19 22:28:35,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 54 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2022-03-19 22:28:35,792 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 44 [2022-03-19 22:28:35,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:35,792 INFO L478 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2022-03-19 22:28:35,793 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:35,793 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2022-03-19 22:28:35,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-19 22:28:35,793 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:35,793 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:35,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-19 22:28:36,001 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 22:28:36,002 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:36,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash -167538465, now seen corresponding path program 1 times [2022-03-19 22:28:36,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:36,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397412826] [2022-03-19 22:28:36,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:36,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:36,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:28:36,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:36,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397412826] [2022-03-19 22:28:36,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397412826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:36,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:36,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:36,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653401] [2022-03-19 22:28:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:36,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:36,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:36,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:36,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:36,059 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:36,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:36,161 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2022-03-19 22:28:36,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:28:36,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-19 22:28:36,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:36,162 INFO L225 Difference]: With dead ends: 69 [2022-03-19 22:28:36,162 INFO L226 Difference]: Without dead ends: 67 [2022-03-19 22:28:36,163 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-19 22:28:36,163 INFO L913 BasicCegarLoop]: 48 mSDtfsCounter, 73 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:36,164 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 65 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:36,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-03-19 22:28:36,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 56. [2022-03-19 22:28:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.0769230769230769) internal successors, (56), 52 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:36,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2022-03-19 22:28:36,167 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 44 [2022-03-19 22:28:36,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:36,167 INFO L478 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2022-03-19 22:28:36,167 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:36,167 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2022-03-19 22:28:36,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-19 22:28:36,167 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:28:36,168 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:28:36,168 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-19 22:28:36,168 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-03-19 22:28:36,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:28:36,168 INFO L85 PathProgramCache]: Analyzing trace with hash -799157235, now seen corresponding path program 1 times [2022-03-19 22:28:36,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:28:36,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176606717] [2022-03-19 22:28:36,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:28:36,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:28:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:28:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:28:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-19 22:28:36,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:28:36,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176606717] [2022-03-19 22:28:36,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176606717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:28:36,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:28:36,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:28:36,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97683381] [2022-03-19 22:28:36,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:28:36,210 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:28:36,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:28:36,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:28:36,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:28:36,211 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:36,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:28:36,344 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2022-03-19 22:28:36,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-19 22:28:36,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-19 22:28:36,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:28:36,345 INFO L225 Difference]: With dead ends: 75 [2022-03-19 22:28:36,345 INFO L226 Difference]: Without dead ends: 0 [2022-03-19 22:28:36,346 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-03-19 22:28:36,346 INFO L913 BasicCegarLoop]: 38 mSDtfsCounter, 88 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:28:36,346 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 55 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:28:36,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-19 22:28:36,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-19 22:28:36,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-19 22:28:36,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-19 22:28:36,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2022-03-19 22:28:36,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:28:36,347 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-19 22:28:36,347 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:28:36,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-19 22:28:36,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-19 22:28:36,349 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 18 remaining) [2022-03-19 22:28:36,349 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (16 of 18 remaining) [2022-03-19 22:28:36,349 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (15 of 18 remaining) [2022-03-19 22:28:36,349 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONERROR_FUNCTION (14 of 18 remaining) [2022-03-19 22:28:36,349 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONERROR_FUNCTION (13 of 18 remaining) [2022-03-19 22:28:36,349 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONERROR_FUNCTION (12 of 18 remaining) [2022-03-19 22:28:36,349 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONERROR_FUNCTION (11 of 18 remaining) [2022-03-19 22:28:36,349 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONERROR_FUNCTION (10 of 18 remaining) [2022-03-19 22:28:36,349 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONERROR_FUNCTION (9 of 18 remaining) [2022-03-19 22:28:36,350 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONERROR_FUNCTION (8 of 18 remaining) [2022-03-19 22:28:36,350 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONERROR_FUNCTION (7 of 18 remaining) [2022-03-19 22:28:36,350 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONERROR_FUNCTION (6 of 18 remaining) [2022-03-19 22:28:36,350 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONERROR_FUNCTION (5 of 18 remaining) [2022-03-19 22:28:36,350 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONERROR_FUNCTION (4 of 18 remaining) [2022-03-19 22:28:36,350 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONERROR_FUNCTION (3 of 18 remaining) [2022-03-19 22:28:36,350 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONERROR_FUNCTION (2 of 18 remaining) [2022-03-19 22:28:36,350 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONERROR_FUNCTION (1 of 18 remaining) [2022-03-19 22:28:36,350 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONERROR_FUNCTION (0 of 18 remaining) [2022-03-19 22:28:36,350 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-19 22:28:36,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-19 22:29:04,362 WARN L232 SmtUtils]: Spent 22.34s on a formula simplification. DAG size of input: 133 DAG size of output: 128 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-03-19 22:29:04,960 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2022-03-19 22:29:04,960 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2022-03-19 22:29:04,960 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 13 439) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point L374(line 374) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point L308(line 308) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point L143(lines 143 362) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point L234(lines 234 338) no Hoare annotation was computed. [2022-03-19 22:29:04,961 INFO L882 garLoopResultBuilder]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L135(lines 135 397) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L226(line 226) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L61(lines 61 427) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L284(line 284) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L53(lines 53 433) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L243(line 243) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L111(lines 111 405) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 296) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L878 garLoopResultBuilder]: At program point L392(lines 129 403) the Hoare annotation is: (and (< main_~main__cp~0 main_~main__urilen~0) (= |old(~__return_375~0)| ~__return_375~0) (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (= main_~__VERIFIER_assert__cond~3 1)) (.cse4 (<= 1 main_~main__cp~0)) (.cse5 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~17 0)) .cse2 .cse3 (<= 1 main_~__VERIFIER_assert__cond~16) .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 (= main_~__VERIFIER_assert__cond~2 1) .cse4 .cse5)))) [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L194(lines 194 354) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L384(lines 384 393) no Hoare annotation was computed. [2022-03-19 22:29:04,962 INFO L882 garLoopResultBuilder]: For program point L95(lines 95 412) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point L29(lines 29 437) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L878 garLoopResultBuilder]: At program point L401(lines 131 402) the Hoare annotation is: (and (let ((.cse0 (not (<= main_~main__scheme~0 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (<= 1 main_~main__cp~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~2 1) .cse3 .cse4) (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse3 .cse4))) (= main_~__VERIFIER_assert__cond~3 1) (= |old(~__return_375~0)| ~__return_375~0) (not (<= main_~main__urilen~0 main_~main__cp~0))) [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 13 439) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 284) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point L104(lines 104 411) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point L71(lines 71 416) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L878 garLoopResultBuilder]: At program point L327(lines 262 328) the Hoare annotation is: (and (= |old(~__return_375~0)| ~__return_375~0) (= main_~__VERIFIER_assert__cond~10 1) (let ((.cse0 (let ((.cse1 (= main_~__VERIFIER_assert__cond~9 1)) (.cse2 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse5 (= main_~__VERIFIER_assert__cond~3 1)) (.cse6 (not (= main_~__VERIFIER_assert__cond~9 0))) (.cse7 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse8 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse9 (< (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse10 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse11 (< 0 main_~main__scheme~0)) (.cse12 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse13 (<= 1 main_~main__cp~0)) (.cse14 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse15 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= (+ 2 main_~main__c~0) main_~main__tokenlen~0)))))) (or (and .cse0 (= main_~main__c~0 0)) (and (not (= main_~__VERIFIER_assert__cond~13 0)) (<= 1 main_~main__c~0) .cse0)))) [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point L294(lines 294 318) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point L162(lines 162 359) no Hoare annotation was computed. [2022-03-19 22:29:04,963 INFO L882 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 85) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L63(lines 63 422) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 13 439) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L253(lines 253 329) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L187(lines 187 355) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L878 garLoopResultBuilder]: At program point L410(lines 104 411) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (= |old(~__return_375~0)| ~__return_375~0)) [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L212(lines 212 346) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L47(lines 47 434) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L270(lines 270 322) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L204(lines 204 353) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 214) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 374) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L262(lines 262 328) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L386(line 386) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L155(lines 155 360) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 189) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point L23(lines 23 438) no Hoare annotation was computed. [2022-03-19 22:29:04,964 INFO L882 garLoopResultBuilder]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 308) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L296(line 296) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L65(lines 65 417) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 113) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L255(line 255) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L189(line 189) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L123(lines 123 403) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L272(line 272) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L41(lines 41 435) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L372(lines 372 395) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L83(lines 83 414) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L306(lines 306 316) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 226) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 386) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L224(lines 224 344) no Hoare annotation was computed. [2022-03-19 22:29:04,965 INFO L882 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point L59(lines 59 432) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L878 garLoopResultBuilder]: At program point L315(lines 230 344) the Hoare annotation is: (let ((.cse8 (= main_~main__c~0 0)) (.cse0 (= main_~__VERIFIER_assert__cond~9 1)) (.cse1 (not (= main_~__VERIFIER_assert__cond~1 0))) (.cse2 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse4 (< main_~main__cp~0 main_~main__urilen~0)) (.cse5 (= main_~__VERIFIER_assert__cond~3 1)) (.cse6 (= |old(~__return_375~0)| ~__return_375~0)) (.cse7 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse9 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse10 (< 0 main_~main__scheme~0)) (.cse11 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse12 (<= 1 main_~main__cp~0)) (.cse13 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse14 (not (= main_~__VERIFIER_assert__cond~2 0)))) (or (and .cse0 .cse1 (= main_~__VERIFIER_assert__cond~8 1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (< (+ main_~main__cp~0 1) main_~main__urilen~0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and (let ((.cse15 (let ((.cse16 (not (= main_~__VERIFIER_assert__cond~11 0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse16 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= (+ 2 main_~main__c~0) main_~main__tokenlen~0)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse7 .cse16 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14))))) (or (and .cse8 .cse15) (and (not (= main_~__VERIFIER_assert__cond~13 0)) (<= 1 main_~main__c~0) .cse15))) (<= 1 main_~__VERIFIER_assert__cond~10)))) [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point L282(lines 282 320) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point L241(lines 241 331) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 272) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point L175(lines 175 357) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point L35(lines 35 436) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_375~0)| ~__return_375~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-03-19 22:29:04,966 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-19 22:29:04,966 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-19 22:29:04,966 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-03-19 22:29:04,968 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:29:04,969 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-19 22:29:04,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 10:29:04 BoogieIcfgContainer [2022-03-19 22:29:04,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-19 22:29:04,988 INFO L158 Benchmark]: Toolchain (without parser) took 34828.74ms. Allocated memory was 218.1MB in the beginning and 498.1MB in the end (delta: 280.0MB). Free memory was 168.0MB in the beginning and 287.6MB in the end (delta: -119.6MB). Peak memory consumption was 274.7MB. Max. memory is 8.0GB. [2022-03-19 22:29:04,988 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 218.1MB. Free memory is still 184.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 22:29:04,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.19ms. Allocated memory is still 218.1MB. Free memory was 167.7MB in the beginning and 184.6MB in the end (delta: -16.9MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. [2022-03-19 22:29:04,989 INFO L158 Benchmark]: Boogie Preprocessor took 27.41ms. Allocated memory is still 218.1MB. Free memory was 184.6MB in the beginning and 182.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-19 22:29:04,989 INFO L158 Benchmark]: RCFGBuilder took 307.33ms. Allocated memory is still 218.1MB. Free memory was 182.9MB in the beginning and 167.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-19 22:29:04,989 INFO L158 Benchmark]: TraceAbstraction took 34273.75ms. Allocated memory was 218.1MB in the beginning and 498.1MB in the end (delta: 280.0MB). Free memory was 166.4MB in the beginning and 287.6MB in the end (delta: -121.2MB). Peak memory consumption was 272.8MB. Max. memory is 8.0GB. [2022-03-19 22:29:04,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 218.1MB. Free memory is still 184.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 215.19ms. Allocated memory is still 218.1MB. Free memory was 167.7MB in the beginning and 184.6MB in the end (delta: -16.9MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.41ms. Allocated memory is still 218.1MB. Free memory was 184.6MB in the beginning and 182.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 307.33ms. Allocated memory is still 218.1MB. Free memory was 182.9MB in the beginning and 167.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 34273.75ms. Allocated memory was 218.1MB in the beginning and 498.1MB in the end (delta: 280.0MB). Free memory was 166.4MB in the beginning and 287.6MB in the end (delta: -121.2MB). Peak memory consumption was 272.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 85]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 97]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 113]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 189]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 214]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 226]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 243]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 255]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 272]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 284]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 296]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 308]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 374]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 386]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 94 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 34.2s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 28.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3669 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3669 mSDsluCounter, 1690 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 365 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2596 IncrementalHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 1325 mSDtfsCounter, 2596 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 461 GetRequests, 269 SyntacticMatches, 18 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 153, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 296 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 732 HoareAnnotationTreeSize, 9 FomulaSimplifications, 75971 FormulaSimplificationTreeSizeReduction, 28.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 370060 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 855 NumberOfCodeBlocks, 855 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 931 ConstructedInterpolants, 0 QuantifiedInterpolants, 2199 SizeOfPredicates, 12 NumberOfNonLiveVariables, 452 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 29 InterpolantComputations, 20 PerfectInterpolantSequences, 11/29 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 - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 262]: Loop Invariant Derived loop invariant: (\old(__return_375) == __return_375 && __VERIFIER_assert__cond == 1) && ((((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) || (((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 2 + main__c <= main__tokenlen)) && main__c == 0) || ((!(__VERIFIER_assert__cond == 0) && 1 <= main__c) && ((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) || (((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 2 + main__c <= main__tokenlen)))) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: (main__cp < main__urilen && \old(__return_375) == __return_375) && ((((((((!(main__scheme <= 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= __VERIFIER_assert__cond) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((((!(main__scheme <= 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0))) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((((((!(main__scheme <= 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || (((((!(main__scheme <= 0) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0))) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(main__urilen <= main__cp) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) && \old(__return_375) == __return_375 - InvariantResult [Line: 230]: Loop Invariant Derived loop invariant: ((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && main__cp + 1 < main__urilen) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) || (((main__c == 0 && ((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 2 + main__c <= main__tokenlen) || (((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)))) || ((!(__VERIFIER_assert__cond == 0) && 1 <= main__c) && ((((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && 2 + main__c <= main__tokenlen) || (((((((((((((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0))))) && 1 <= __VERIFIER_assert__cond) RESULT: Ultimate proved your program to be correct! [2022-03-19 22:29:05,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...