./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/dll-01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/dll-01-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdf63a831807312c569006a76efbe1414243703d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 03:57:27,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:57:27,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:57:27,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:57:27,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:57:27,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:57:27,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:57:27,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:57:27,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:57:27,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:57:27,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:57:27,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:57:27,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:57:27,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:57:27,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:57:27,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:57:27,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:57:27,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:57:27,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:57:27,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:57:27,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:57:27,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:57:27,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:57:27,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:57:27,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:57:27,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:57:27,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:57:27,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:57:27,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:57:27,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:57:27,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:57:27,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:57:27,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:57:27,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:57:27,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:57:27,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:57:27,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:57:27,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:57:27,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:57:27,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:57:27,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:57:27,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-26 03:57:27,304 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:57:27,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:57:27,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:57:27,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:57:27,308 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:57:27,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:57:27,308 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:57:27,309 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:57:27,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:57:27,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:57:27,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:57:27,311 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:57:27,311 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:57:27,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:57:27,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:57:27,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:57:27,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:57:27,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:57:27,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:57:27,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:57:27,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:57:27,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:57:27,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:57:27,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:57:27,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:57:27,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:57:27,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:57:27,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf63a831807312c569006a76efbe1414243703d [2020-10-26 03:57:27,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:57:27,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:57:27,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:57:27,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:57:27,778 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:57:27,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-01-1.i [2020-10-26 03:57:27,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d09c4c25/7400f9c5ff3d4f19a7365401c91b8c11/FLAG69e78deee [2020-10-26 03:57:28,462 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:57:28,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-01-1.i [2020-10-26 03:57:28,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d09c4c25/7400f9c5ff3d4f19a7365401c91b8c11/FLAG69e78deee [2020-10-26 03:57:28,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d09c4c25/7400f9c5ff3d4f19a7365401c91b8c11 [2020-10-26 03:57:28,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:57:28,778 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:57:28,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:57:28,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:57:28,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:57:28,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:57:28" (1/1) ... [2020-10-26 03:57:28,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30dbfc7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:28, skipping insertion in model container [2020-10-26 03:57:28,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:57:28" (1/1) ... [2020-10-26 03:57:28,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:57:28,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:57:29,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:57:29,213 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:57:29,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:57:29,325 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:57:29,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29 WrapperNode [2020-10-26 03:57:29,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:57:29,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:57:29,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:57:29,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:57:29,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29" (1/1) ... [2020-10-26 03:57:29,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29" (1/1) ... [2020-10-26 03:57:29,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29" (1/1) ... [2020-10-26 03:57:29,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29" (1/1) ... [2020-10-26 03:57:29,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29" (1/1) ... [2020-10-26 03:57:29,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29" (1/1) ... [2020-10-26 03:57:29,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29" (1/1) ... [2020-10-26 03:57:29,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:57:29,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:57:29,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:57:29,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:57:29,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:57:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:57:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:57:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 03:57:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:57:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-26 03:57:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-26 03:57:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-26 03:57:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-26 03:57:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-26 03:57:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-26 03:57:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-26 03:57:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-26 03:57:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-26 03:57:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-26 03:57:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-26 03:57:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-26 03:57:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-26 03:57:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-26 03:57:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-26 03:57:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-26 03:57:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-26 03:57:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-26 03:57:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-26 03:57:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-26 03:57:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-26 03:57:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-26 03:57:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-26 03:57:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-26 03:57:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-26 03:57:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-26 03:57:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-26 03:57:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-26 03:57:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-26 03:57:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-26 03:57:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-26 03:57:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-26 03:57:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-26 03:57:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-26 03:57:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-26 03:57:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-26 03:57:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-26 03:57:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-26 03:57:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-26 03:57:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-26 03:57:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-26 03:57:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-26 03:57:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-26 03:57:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-26 03:57:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-26 03:57:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-26 03:57:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-26 03:57:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-26 03:57:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-26 03:57:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-26 03:57:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 03:57:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-26 03:57:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-26 03:57:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-26 03:57:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-26 03:57:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-26 03:57:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-26 03:57:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-26 03:57:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-26 03:57:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 03:57:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-26 03:57:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-26 03:57:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-26 03:57:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 03:57:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-26 03:57:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-26 03:57:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-26 03:57:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-26 03:57:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-26 03:57:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-26 03:57:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-26 03:57:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-26 03:57:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-26 03:57:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-26 03:57:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-26 03:57:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-26 03:57:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-26 03:57:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-26 03:57:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-26 03:57:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-26 03:57:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-26 03:57:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-26 03:57:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-26 03:57:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-26 03:57:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-26 03:57:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-26 03:57:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-26 03:57:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-26 03:57:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-26 03:57:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-26 03:57:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-26 03:57:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-26 03:57:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-26 03:57:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-26 03:57:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-26 03:57:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-26 03:57:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-26 03:57:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-26 03:57:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-26 03:57:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-26 03:57:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-26 03:57:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-26 03:57:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-26 03:57:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:57:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 03:57:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-26 03:57:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-26 03:57:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 03:57:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 03:57:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:57:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 03:57:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-26 03:57:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-26 03:57:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:57:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:57:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 03:57:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:57:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 03:57:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 03:57:30,397 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:57:30,398 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-26 03:57:30,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:30 BoogieIcfgContainer [2020-10-26 03:57:30,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:57:30,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:57:30,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:57:30,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:57:30,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:57:28" (1/3) ... [2020-10-26 03:57:30,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1113d8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:57:30, skipping insertion in model container [2020-10-26 03:57:30,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:29" (2/3) ... [2020-10-26 03:57:30,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1113d8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:57:30, skipping insertion in model container [2020-10-26 03:57:30,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:30" (3/3) ... [2020-10-26 03:57:30,408 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-10-26 03:57:30,420 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:57:30,425 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 72 error locations. [2020-10-26 03:57:30,438 INFO L253 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2020-10-26 03:57:30,461 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:57:30,461 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:57:30,461 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:57:30,461 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:57:30,461 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:57:30,461 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:57:30,462 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:57:30,462 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:57:30,484 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-26 03:57:30,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 03:57:30,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:30,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:30,494 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:30,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:30,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1936971074, now seen corresponding path program 1 times [2020-10-26 03:57:30,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:30,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367848531] [2020-10-26 03:57:30,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:30,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:30,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:30,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367848531] [2020-10-26 03:57:30,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:30,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:57:30,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839979495] [2020-10-26 03:57:30,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:57:30,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:30,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:57:30,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:30,760 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-26 03:57:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:31,276 INFO L93 Difference]: Finished difference Result 192 states and 214 transitions. [2020-10-26 03:57:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:57:31,278 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-26 03:57:31,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:31,290 INFO L225 Difference]: With dead ends: 192 [2020-10-26 03:57:31,290 INFO L226 Difference]: Without dead ends: 188 [2020-10-26 03:57:31,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-26 03:57:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 183. [2020-10-26 03:57:31,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-26 03:57:31,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 207 transitions. [2020-10-26 03:57:31,350 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 207 transitions. Word has length 7 [2020-10-26 03:57:31,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:31,350 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 207 transitions. [2020-10-26 03:57:31,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:57:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 207 transitions. [2020-10-26 03:57:31,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 03:57:31,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:31,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:31,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 03:57:31,352 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:31,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:31,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1936971075, now seen corresponding path program 1 times [2020-10-26 03:57:31,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:31,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755113782] [2020-10-26 03:57:31,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:31,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:31,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:31,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755113782] [2020-10-26 03:57:31,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:31,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:57:31,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516698720] [2020-10-26 03:57:31,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:57:31,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:31,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:57:31,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:31,477 INFO L87 Difference]: Start difference. First operand 183 states and 207 transitions. Second operand 4 states. [2020-10-26 03:57:31,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:31,896 INFO L93 Difference]: Finished difference Result 209 states and 235 transitions. [2020-10-26 03:57:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:57:31,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-26 03:57:31,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:31,899 INFO L225 Difference]: With dead ends: 209 [2020-10-26 03:57:31,899 INFO L226 Difference]: Without dead ends: 209 [2020-10-26 03:57:31,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:31,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-26 03:57:31,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 192. [2020-10-26 03:57:31,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-26 03:57:31,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 227 transitions. [2020-10-26 03:57:31,914 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 227 transitions. Word has length 7 [2020-10-26 03:57:31,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:31,914 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 227 transitions. [2020-10-26 03:57:31,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:57:31,915 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 227 transitions. [2020-10-26 03:57:31,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 03:57:31,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:31,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:31,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 03:57:31,916 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:31,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:31,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1535588995, now seen corresponding path program 1 times [2020-10-26 03:57:31,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:31,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892634095] [2020-10-26 03:57:31,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:32,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:32,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892634095] [2020-10-26 03:57:32,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:32,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:57:32,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173921183] [2020-10-26 03:57:32,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:57:32,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:32,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:57:32,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:32,051 INFO L87 Difference]: Start difference. First operand 192 states and 227 transitions. Second operand 4 states. [2020-10-26 03:57:32,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:32,416 INFO L93 Difference]: Finished difference Result 205 states and 230 transitions. [2020-10-26 03:57:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:57:32,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-26 03:57:32,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:32,419 INFO L225 Difference]: With dead ends: 205 [2020-10-26 03:57:32,419 INFO L226 Difference]: Without dead ends: 205 [2020-10-26 03:57:32,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:32,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-26 03:57:32,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 191. [2020-10-26 03:57:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-26 03:57:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 224 transitions. [2020-10-26 03:57:32,448 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 224 transitions. Word has length 12 [2020-10-26 03:57:32,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:32,448 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 224 transitions. [2020-10-26 03:57:32,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:57:32,449 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 224 transitions. [2020-10-26 03:57:32,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 03:57:32,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:32,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:32,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 03:57:32,450 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:32,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:32,454 INFO L82 PathProgramCache]: Analyzing trace with hash -945873449, now seen corresponding path program 1 times [2020-10-26 03:57:32,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:32,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995405327] [2020-10-26 03:57:32,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:32,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:32,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995405327] [2020-10-26 03:57:32,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:32,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:57:32,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571138386] [2020-10-26 03:57:32,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:57:32,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:32,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:57:32,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:32,583 INFO L87 Difference]: Start difference. First operand 191 states and 224 transitions. Second operand 6 states. [2020-10-26 03:57:33,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:33,560 INFO L93 Difference]: Finished difference Result 326 states and 379 transitions. [2020-10-26 03:57:33,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:57:33,560 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-26 03:57:33,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:33,563 INFO L225 Difference]: With dead ends: 326 [2020-10-26 03:57:33,563 INFO L226 Difference]: Without dead ends: 326 [2020-10-26 03:57:33,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:57:33,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-26 03:57:33,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 190. [2020-10-26 03:57:33,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-26 03:57:33,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 223 transitions. [2020-10-26 03:57:33,579 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 223 transitions. Word has length 15 [2020-10-26 03:57:33,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:33,579 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 223 transitions. [2020-10-26 03:57:33,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:57:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 223 transitions. [2020-10-26 03:57:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 03:57:33,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:33,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:33,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 03:57:33,581 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:33,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:33,581 INFO L82 PathProgramCache]: Analyzing trace with hash -945873448, now seen corresponding path program 1 times [2020-10-26 03:57:33,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:33,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626499393] [2020-10-26 03:57:33,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:33,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:33,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626499393] [2020-10-26 03:57:33,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:33,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:57:33,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565855677] [2020-10-26 03:57:33,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:57:33,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:33,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:57:33,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:33,708 INFO L87 Difference]: Start difference. First operand 190 states and 223 transitions. Second operand 6 states. [2020-10-26 03:57:34,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:34,699 INFO L93 Difference]: Finished difference Result 353 states and 419 transitions. [2020-10-26 03:57:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:57:34,700 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-26 03:57:34,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:34,703 INFO L225 Difference]: With dead ends: 353 [2020-10-26 03:57:34,704 INFO L226 Difference]: Without dead ends: 353 [2020-10-26 03:57:34,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:57:34,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-10-26 03:57:34,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 189. [2020-10-26 03:57:34,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-26 03:57:34,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 222 transitions. [2020-10-26 03:57:34,713 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 222 transitions. Word has length 15 [2020-10-26 03:57:34,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:34,713 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 222 transitions. [2020-10-26 03:57:34,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:57:34,714 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 222 transitions. [2020-10-26 03:57:34,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 03:57:34,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:34,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:34,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 03:57:34,715 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:34,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:34,716 INFO L82 PathProgramCache]: Analyzing trace with hash 764533764, now seen corresponding path program 1 times [2020-10-26 03:57:34,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:34,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634219101] [2020-10-26 03:57:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:34,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:34,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634219101] [2020-10-26 03:57:34,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:34,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:57:34,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874626841] [2020-10-26 03:57:34,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:57:34,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:34,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:57:34,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:57:34,925 INFO L87 Difference]: Start difference. First operand 189 states and 222 transitions. Second operand 9 states. [2020-10-26 03:57:36,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:36,326 INFO L93 Difference]: Finished difference Result 325 states and 377 transitions. [2020-10-26 03:57:36,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:57:36,327 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-26 03:57:36,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:36,329 INFO L225 Difference]: With dead ends: 325 [2020-10-26 03:57:36,329 INFO L226 Difference]: Without dead ends: 325 [2020-10-26 03:57:36,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:57:36,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-26 03:57:36,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 188. [2020-10-26 03:57:36,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-26 03:57:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2020-10-26 03:57:36,338 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 18 [2020-10-26 03:57:36,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:36,338 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2020-10-26 03:57:36,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:57:36,338 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2020-10-26 03:57:36,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 03:57:36,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:36,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:36,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 03:57:36,340 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:36,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:36,340 INFO L82 PathProgramCache]: Analyzing trace with hash 764533765, now seen corresponding path program 1 times [2020-10-26 03:57:36,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:36,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132144806] [2020-10-26 03:57:36,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:36,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:36,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:36,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132144806] [2020-10-26 03:57:36,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:36,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:57:36,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702338066] [2020-10-26 03:57:36,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:57:36,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:36,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:57:36,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:57:36,486 INFO L87 Difference]: Start difference. First operand 188 states and 221 transitions. Second operand 9 states. [2020-10-26 03:57:37,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:37,963 INFO L93 Difference]: Finished difference Result 326 states and 378 transitions. [2020-10-26 03:57:37,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 03:57:37,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-26 03:57:37,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:37,966 INFO L225 Difference]: With dead ends: 326 [2020-10-26 03:57:37,966 INFO L226 Difference]: Without dead ends: 326 [2020-10-26 03:57:37,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:57:37,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-26 03:57:37,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 187. [2020-10-26 03:57:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-26 03:57:37,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 220 transitions. [2020-10-26 03:57:37,983 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 220 transitions. Word has length 18 [2020-10-26 03:57:37,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:37,984 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 220 transitions. [2020-10-26 03:57:37,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:57:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 220 transitions. [2020-10-26 03:57:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-26 03:57:37,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:37,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:37,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 03:57:37,985 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:37,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:37,986 INFO L82 PathProgramCache]: Analyzing trace with hash -987995704, now seen corresponding path program 1 times [2020-10-26 03:57:37,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:37,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738488121] [2020-10-26 03:57:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:38,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:38,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738488121] [2020-10-26 03:57:38,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:38,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:57:38,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430031342] [2020-10-26 03:57:38,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:57:38,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:38,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:57:38,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:38,067 INFO L87 Difference]: Start difference. First operand 187 states and 220 transitions. Second operand 4 states. [2020-10-26 03:57:38,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:38,364 INFO L93 Difference]: Finished difference Result 188 states and 221 transitions. [2020-10-26 03:57:38,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:57:38,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-26 03:57:38,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:38,366 INFO L225 Difference]: With dead ends: 188 [2020-10-26 03:57:38,366 INFO L226 Difference]: Without dead ends: 188 [2020-10-26 03:57:38,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-26 03:57:38,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-26 03:57:38,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-26 03:57:38,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2020-10-26 03:57:38,376 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 20 [2020-10-26 03:57:38,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:38,376 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2020-10-26 03:57:38,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:57:38,376 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2020-10-26 03:57:38,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 03:57:38,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:38,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:38,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 03:57:38,378 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:38,381 INFO L82 PathProgramCache]: Analyzing trace with hash 952139725, now seen corresponding path program 1 times [2020-10-26 03:57:38,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:38,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737849917] [2020-10-26 03:57:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:38,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:38,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:38,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737849917] [2020-10-26 03:57:38,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:38,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:57:38,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923945138] [2020-10-26 03:57:38,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 03:57:38,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:38,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 03:57:38,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:57:38,530 INFO L87 Difference]: Start difference. First operand 188 states and 221 transitions. Second operand 8 states. [2020-10-26 03:57:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:39,152 INFO L93 Difference]: Finished difference Result 268 states and 314 transitions. [2020-10-26 03:57:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 03:57:39,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-26 03:57:39,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:39,156 INFO L225 Difference]: With dead ends: 268 [2020-10-26 03:57:39,156 INFO L226 Difference]: Without dead ends: 268 [2020-10-26 03:57:39,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:57:39,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-10-26 03:57:39,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 186. [2020-10-26 03:57:39,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-26 03:57:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 218 transitions. [2020-10-26 03:57:39,163 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 218 transitions. Word has length 22 [2020-10-26 03:57:39,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:39,163 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 218 transitions. [2020-10-26 03:57:39,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 03:57:39,163 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 218 transitions. [2020-10-26 03:57:39,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 03:57:39,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:39,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:39,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 03:57:39,164 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:39,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:39,165 INFO L82 PathProgramCache]: Analyzing trace with hash -496816356, now seen corresponding path program 1 times [2020-10-26 03:57:39,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:39,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172228995] [2020-10-26 03:57:39,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:39,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:39,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172228995] [2020-10-26 03:57:39,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:39,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 03:57:39,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517433359] [2020-10-26 03:57:39,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:57:39,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:39,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:57:39,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:39,245 INFO L87 Difference]: Start difference. First operand 186 states and 218 transitions. Second operand 6 states. [2020-10-26 03:57:39,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:39,746 INFO L93 Difference]: Finished difference Result 269 states and 314 transitions. [2020-10-26 03:57:39,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:57:39,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-26 03:57:39,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:39,749 INFO L225 Difference]: With dead ends: 269 [2020-10-26 03:57:39,749 INFO L226 Difference]: Without dead ends: 269 [2020-10-26 03:57:39,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:57:39,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-10-26 03:57:39,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 189. [2020-10-26 03:57:39,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-26 03:57:39,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 221 transitions. [2020-10-26 03:57:39,756 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 221 transitions. Word has length 22 [2020-10-26 03:57:39,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:39,756 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 221 transitions. [2020-10-26 03:57:39,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:57:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 221 transitions. [2020-10-26 03:57:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-26 03:57:39,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:39,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:39,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 03:57:39,758 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:39,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:39,759 INFO L82 PathProgramCache]: Analyzing trace with hash -42475551, now seen corresponding path program 1 times [2020-10-26 03:57:39,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:39,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059682935] [2020-10-26 03:57:39,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:39,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:39,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059682935] [2020-10-26 03:57:39,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:39,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:57:39,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184808328] [2020-10-26 03:57:39,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:57:39,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:39,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:57:39,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:57:39,825 INFO L87 Difference]: Start difference. First operand 189 states and 221 transitions. Second operand 5 states. [2020-10-26 03:57:40,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:40,255 INFO L93 Difference]: Finished difference Result 184 states and 214 transitions. [2020-10-26 03:57:40,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:57:40,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-26 03:57:40,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:40,257 INFO L225 Difference]: With dead ends: 184 [2020-10-26 03:57:40,257 INFO L226 Difference]: Without dead ends: 184 [2020-10-26 03:57:40,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-26 03:57:40,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 179. [2020-10-26 03:57:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-26 03:57:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 211 transitions. [2020-10-26 03:57:40,263 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 211 transitions. Word has length 24 [2020-10-26 03:57:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:40,264 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 211 transitions. [2020-10-26 03:57:40,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:57:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 211 transitions. [2020-10-26 03:57:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-26 03:57:40,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:40,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:40,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 03:57:40,266 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:40,266 INFO L82 PathProgramCache]: Analyzing trace with hash -42475550, now seen corresponding path program 1 times [2020-10-26 03:57:40,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:40,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577294580] [2020-10-26 03:57:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:40,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:40,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577294580] [2020-10-26 03:57:40,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:40,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:57:40,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814368159] [2020-10-26 03:57:40,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:57:40,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:40,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:57:40,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:57:40,357 INFO L87 Difference]: Start difference. First operand 179 states and 211 transitions. Second operand 5 states. [2020-10-26 03:57:40,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:40,869 INFO L93 Difference]: Finished difference Result 232 states and 264 transitions. [2020-10-26 03:57:40,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:57:40,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-26 03:57:40,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:40,872 INFO L225 Difference]: With dead ends: 232 [2020-10-26 03:57:40,872 INFO L226 Difference]: Without dead ends: 232 [2020-10-26 03:57:40,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:40,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-26 03:57:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2020-10-26 03:57:40,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-26 03:57:40,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 248 transitions. [2020-10-26 03:57:40,879 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 248 transitions. Word has length 24 [2020-10-26 03:57:40,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:40,879 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 248 transitions. [2020-10-26 03:57:40,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:57:40,879 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 248 transitions. [2020-10-26 03:57:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-26 03:57:40,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:40,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:40,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 03:57:40,880 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:40,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:40,881 INFO L82 PathProgramCache]: Analyzing trace with hash 2130670948, now seen corresponding path program 1 times [2020-10-26 03:57:40,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:40,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715937023] [2020-10-26 03:57:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:40,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:40,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715937023] [2020-10-26 03:57:40,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:40,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:57:40,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696780464] [2020-10-26 03:57:40,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:57:40,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:40,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:57:40,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:40,959 INFO L87 Difference]: Start difference. First operand 202 states and 248 transitions. Second operand 6 states. [2020-10-26 03:57:41,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:41,573 INFO L93 Difference]: Finished difference Result 284 states and 354 transitions. [2020-10-26 03:57:41,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:57:41,574 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-26 03:57:41,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:41,576 INFO L225 Difference]: With dead ends: 284 [2020-10-26 03:57:41,576 INFO L226 Difference]: Without dead ends: 284 [2020-10-26 03:57:41,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:57:41,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-26 03:57:41,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 201. [2020-10-26 03:57:41,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-26 03:57:41,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2020-10-26 03:57:41,583 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 26 [2020-10-26 03:57:41,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:41,584 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2020-10-26 03:57:41,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:57:41,584 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2020-10-26 03:57:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-26 03:57:41,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:41,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:41,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 03:57:41,585 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:41,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:41,585 INFO L82 PathProgramCache]: Analyzing trace with hash 2130670949, now seen corresponding path program 1 times [2020-10-26 03:57:41,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:41,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101479846] [2020-10-26 03:57:41,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:41,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:41,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101479846] [2020-10-26 03:57:41,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:41,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:57:41,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447662950] [2020-10-26 03:57:41,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:57:41,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:41,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:57:41,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:41,695 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand 6 states. [2020-10-26 03:57:42,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:42,424 INFO L93 Difference]: Finished difference Result 311 states and 391 transitions. [2020-10-26 03:57:42,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:57:42,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-26 03:57:42,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:42,433 INFO L225 Difference]: With dead ends: 311 [2020-10-26 03:57:42,434 INFO L226 Difference]: Without dead ends: 311 [2020-10-26 03:57:42,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:57:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-10-26 03:57:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 200. [2020-10-26 03:57:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-26 03:57:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 244 transitions. [2020-10-26 03:57:42,441 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 244 transitions. Word has length 26 [2020-10-26 03:57:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:42,441 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 244 transitions. [2020-10-26 03:57:42,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:57:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 244 transitions. [2020-10-26 03:57:42,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-26 03:57:42,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:42,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:42,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 03:57:42,443 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:42,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:42,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1073726397, now seen corresponding path program 1 times [2020-10-26 03:57:42,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:42,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017076182] [2020-10-26 03:57:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:42,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:42,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017076182] [2020-10-26 03:57:42,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:42,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:57:42,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253930422] [2020-10-26 03:57:42,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:57:42,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:42,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:57:42,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:57:42,510 INFO L87 Difference]: Start difference. First operand 200 states and 244 transitions. Second operand 5 states. [2020-10-26 03:57:42,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:42,887 INFO L93 Difference]: Finished difference Result 224 states and 254 transitions. [2020-10-26 03:57:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:57:42,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-26 03:57:42,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:42,890 INFO L225 Difference]: With dead ends: 224 [2020-10-26 03:57:42,890 INFO L226 Difference]: Without dead ends: 224 [2020-10-26 03:57:42,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:42,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-26 03:57:42,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 199. [2020-10-26 03:57:42,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-26 03:57:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 241 transitions. [2020-10-26 03:57:42,902 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 241 transitions. Word has length 28 [2020-10-26 03:57:42,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:42,902 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 241 transitions. [2020-10-26 03:57:42,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:57:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 241 transitions. [2020-10-26 03:57:42,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-26 03:57:42,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:42,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:42,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 03:57:42,906 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:42,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:42,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1575328934, now seen corresponding path program 1 times [2020-10-26 03:57:42,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:42,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898416080] [2020-10-26 03:57:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:43,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:43,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898416080] [2020-10-26 03:57:43,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:43,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-26 03:57:43,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130786623] [2020-10-26 03:57:43,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 03:57:43,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:43,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 03:57:43,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-26 03:57:43,090 INFO L87 Difference]: Start difference. First operand 199 states and 241 transitions. Second operand 10 states. [2020-10-26 03:57:43,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:43,952 INFO L93 Difference]: Finished difference Result 199 states and 240 transitions. [2020-10-26 03:57:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:57:43,952 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-10-26 03:57:43,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:43,953 INFO L225 Difference]: With dead ends: 199 [2020-10-26 03:57:43,953 INFO L226 Difference]: Without dead ends: 199 [2020-10-26 03:57:43,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-26 03:57:43,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-26 03:57:43,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 198. [2020-10-26 03:57:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-26 03:57:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 240 transitions. [2020-10-26 03:57:43,964 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 240 transitions. Word has length 30 [2020-10-26 03:57:43,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:43,968 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 240 transitions. [2020-10-26 03:57:43,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 03:57:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 240 transitions. [2020-10-26 03:57:43,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-26 03:57:43,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:43,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:43,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 03:57:43,969 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:43,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:43,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1575328935, now seen corresponding path program 1 times [2020-10-26 03:57:43,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:43,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021064753] [2020-10-26 03:57:43,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:44,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:44,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021064753] [2020-10-26 03:57:44,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:44,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 03:57:44,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493377235] [2020-10-26 03:57:44,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 03:57:44,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:44,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 03:57:44,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:57:44,172 INFO L87 Difference]: Start difference. First operand 198 states and 240 transitions. Second operand 11 states. [2020-10-26 03:57:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:45,293 INFO L93 Difference]: Finished difference Result 191 states and 232 transitions. [2020-10-26 03:57:45,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 03:57:45,293 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-10-26 03:57:45,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:45,295 INFO L225 Difference]: With dead ends: 191 [2020-10-26 03:57:45,296 INFO L226 Difference]: Without dead ends: 191 [2020-10-26 03:57:45,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-26 03:57:45,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-26 03:57:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 181. [2020-10-26 03:57:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-26 03:57:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 222 transitions. [2020-10-26 03:57:45,301 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 222 transitions. Word has length 30 [2020-10-26 03:57:45,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:45,301 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 222 transitions. [2020-10-26 03:57:45,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 03:57:45,301 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 222 transitions. [2020-10-26 03:57:45,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-26 03:57:45,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:45,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:45,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 03:57:45,303 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:45,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:45,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1179979243, now seen corresponding path program 1 times [2020-10-26 03:57:45,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:45,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224893533] [2020-10-26 03:57:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:45,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:45,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:45,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224893533] [2020-10-26 03:57:45,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:45,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:57:45,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234890360] [2020-10-26 03:57:45,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:57:45,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:45,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:57:45,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:45,388 INFO L87 Difference]: Start difference. First operand 181 states and 222 transitions. Second operand 4 states. [2020-10-26 03:57:45,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:45,645 INFO L93 Difference]: Finished difference Result 251 states and 310 transitions. [2020-10-26 03:57:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:57:45,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-26 03:57:45,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:45,647 INFO L225 Difference]: With dead ends: 251 [2020-10-26 03:57:45,648 INFO L226 Difference]: Without dead ends: 251 [2020-10-26 03:57:45,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:45,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-26 03:57:45,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 187. [2020-10-26 03:57:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-26 03:57:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 230 transitions. [2020-10-26 03:57:45,655 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 230 transitions. Word has length 34 [2020-10-26 03:57:45,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:45,655 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 230 transitions. [2020-10-26 03:57:45,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:57:45,655 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 230 transitions. [2020-10-26 03:57:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-26 03:57:45,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:45,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:45,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 03:57:45,657 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:45,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:45,658 INFO L82 PathProgramCache]: Analyzing trace with hash -2096287408, now seen corresponding path program 1 times [2020-10-26 03:57:45,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:45,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332591050] [2020-10-26 03:57:45,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:45,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:45,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:45,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332591050] [2020-10-26 03:57:45,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:45,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 03:57:45,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766825906] [2020-10-26 03:57:45,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 03:57:45,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:45,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 03:57:45,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:57:45,818 INFO L87 Difference]: Start difference. First operand 187 states and 230 transitions. Second operand 11 states. [2020-10-26 03:57:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:46,693 INFO L93 Difference]: Finished difference Result 195 states and 236 transitions. [2020-10-26 03:57:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 03:57:46,694 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-10-26 03:57:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:46,695 INFO L225 Difference]: With dead ends: 195 [2020-10-26 03:57:46,695 INFO L226 Difference]: Without dead ends: 195 [2020-10-26 03:57:46,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-26 03:57:46,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-10-26 03:57:46,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 185. [2020-10-26 03:57:46,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-26 03:57:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 226 transitions. [2020-10-26 03:57:46,700 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 226 transitions. Word has length 34 [2020-10-26 03:57:46,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:46,700 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 226 transitions. [2020-10-26 03:57:46,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 03:57:46,701 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 226 transitions. [2020-10-26 03:57:46,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-26 03:57:46,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:46,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:46,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 03:57:46,702 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:46,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:46,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1179498805, now seen corresponding path program 1 times [2020-10-26 03:57:46,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:46,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970114918] [2020-10-26 03:57:46,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:46,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970114918] [2020-10-26 03:57:46,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:46,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-26 03:57:46,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114253563] [2020-10-26 03:57:46,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:57:46,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:46,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:57:46,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:57:46,836 INFO L87 Difference]: Start difference. First operand 185 states and 226 transitions. Second operand 9 states. [2020-10-26 03:57:47,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:47,550 INFO L93 Difference]: Finished difference Result 282 states and 339 transitions. [2020-10-26 03:57:47,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 03:57:47,551 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-10-26 03:57:47,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:47,553 INFO L225 Difference]: With dead ends: 282 [2020-10-26 03:57:47,553 INFO L226 Difference]: Without dead ends: 282 [2020-10-26 03:57:47,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-26 03:57:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-26 03:57:47,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 197. [2020-10-26 03:57:47,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-26 03:57:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 239 transitions. [2020-10-26 03:57:47,560 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 239 transitions. Word has length 34 [2020-10-26 03:57:47,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:47,561 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 239 transitions. [2020-10-26 03:57:47,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:57:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 239 transitions. [2020-10-26 03:57:47,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-26 03:57:47,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:47,562 INFO L422 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, 1, 1, 1, 1, 1] [2020-10-26 03:57:47,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-26 03:57:47,562 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:47,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:47,563 INFO L82 PathProgramCache]: Analyzing trace with hash 92717896, now seen corresponding path program 1 times [2020-10-26 03:57:47,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:47,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930142903] [2020-10-26 03:57:47,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:47,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:47,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930142903] [2020-10-26 03:57:47,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405638964] [2020-10-26 03:57:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:57:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:47,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 22 conjunts are in the unsatisfiable core [2020-10-26 03:57:47,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:57:48,019 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-26 03:57:48,019 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,035 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:57:48,040 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-26 03:57:48,041 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,053 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:57:48,054 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,054 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2020-10-26 03:57:48,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,193 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-26 03:57:48,194 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,211 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:57:48,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,219 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-26 03:57:48,220 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,234 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:57:48,234 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,234 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2020-10-26 03:57:48,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,284 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-10-26 03:57:48,285 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,312 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:57:48,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,321 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-10-26 03:57:48,322 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,341 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:57:48,342 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,342 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:65, output treesize:57 [2020-10-26 03:57:48,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,536 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-26 03:57:48,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,540 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2020-10-26 03:57:48,544 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,592 INFO L625 ElimStorePlain]: treesize reduction 3, result has 93.8 percent of original size [2020-10-26 03:57:48,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,601 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-26 03:57:48,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:57:48,605 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:57:48,605 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 16 [2020-10-26 03:57:48,608 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,619 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:57:48,622 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:57:48,622 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:77, output treesize:7 [2020-10-26 03:57:48,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:48,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:57:48,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 12 [2020-10-26 03:57:48,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417035054] [2020-10-26 03:57:48,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 03:57:48,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:48,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 03:57:48,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:57:48,651 INFO L87 Difference]: Start difference. First operand 197 states and 239 transitions. Second operand 12 states. [2020-10-26 03:57:52,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:52,075 INFO L93 Difference]: Finished difference Result 327 states and 380 transitions. [2020-10-26 03:57:52,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-26 03:57:52,075 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2020-10-26 03:57:52,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:52,077 INFO L225 Difference]: With dead ends: 327 [2020-10-26 03:57:52,078 INFO L226 Difference]: Without dead ends: 327 [2020-10-26 03:57:52,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-26 03:57:52,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-26 03:57:52,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 225. [2020-10-26 03:57:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-26 03:57:52,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 281 transitions. [2020-10-26 03:57:52,094 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 281 transitions. Word has length 36 [2020-10-26 03:57:52,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:52,096 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 281 transitions. [2020-10-26 03:57:52,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 03:57:52,096 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 281 transitions. [2020-10-26 03:57:52,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-26 03:57:52,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:52,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:52,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-10-26 03:57:52,311 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:52,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:52,312 INFO L82 PathProgramCache]: Analyzing trace with hash -971694423, now seen corresponding path program 1 times [2020-10-26 03:57:52,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:52,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489377330] [2020-10-26 03:57:52,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:52,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:52,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:52,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489377330] [2020-10-26 03:57:52,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:52,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 03:57:52,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930317897] [2020-10-26 03:57:52,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 03:57:52,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:52,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 03:57:52,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:57:52,541 INFO L87 Difference]: Start difference. First operand 225 states and 281 transitions. Second operand 12 states. [2020-10-26 03:57:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:54,119 INFO L93 Difference]: Finished difference Result 445 states and 529 transitions. [2020-10-26 03:57:54,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 03:57:54,122 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-26 03:57:54,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:54,126 INFO L225 Difference]: With dead ends: 445 [2020-10-26 03:57:54,126 INFO L226 Difference]: Without dead ends: 445 [2020-10-26 03:57:54,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2020-10-26 03:57:54,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-10-26 03:57:54,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 226. [2020-10-26 03:57:54,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-26 03:57:54,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 280 transitions. [2020-10-26 03:57:54,134 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 280 transitions. Word has length 38 [2020-10-26 03:57:54,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:54,135 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 280 transitions. [2020-10-26 03:57:54,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 03:57:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 280 transitions. [2020-10-26 03:57:54,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-26 03:57:54,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:54,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:54,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-26 03:57:54,137 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:54,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:54,137 INFO L82 PathProgramCache]: Analyzing trace with hash -971694422, now seen corresponding path program 1 times [2020-10-26 03:57:54,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:54,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750562634] [2020-10-26 03:57:54,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:54,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:54,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:54,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750562634] [2020-10-26 03:57:54,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:54,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 03:57:54,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439589901] [2020-10-26 03:57:54,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 03:57:54,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:54,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 03:57:54,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:57:54,398 INFO L87 Difference]: Start difference. First operand 226 states and 280 transitions. Second operand 12 states. [2020-10-26 03:57:56,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:56,368 INFO L93 Difference]: Finished difference Result 495 states and 585 transitions. [2020-10-26 03:57:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-26 03:57:56,369 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-26 03:57:56,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:56,373 INFO L225 Difference]: With dead ends: 495 [2020-10-26 03:57:56,373 INFO L226 Difference]: Without dead ends: 495 [2020-10-26 03:57:56,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2020-10-26 03:57:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-10-26 03:57:56,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 232. [2020-10-26 03:57:56,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-26 03:57:56,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 287 transitions. [2020-10-26 03:57:56,381 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 287 transitions. Word has length 38 [2020-10-26 03:57:56,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:56,382 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 287 transitions. [2020-10-26 03:57:56,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 03:57:56,382 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 287 transitions. [2020-10-26 03:57:56,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-26 03:57:56,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:56,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:56,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-26 03:57:56,383 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:56,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:56,384 INFO L82 PathProgramCache]: Analyzing trace with hash -57702251, now seen corresponding path program 1 times [2020-10-26 03:57:56,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:56,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522904843] [2020-10-26 03:57:56,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:56,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:56,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522904843] [2020-10-26 03:57:56,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:56,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:57:56,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894191773] [2020-10-26 03:57:56,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:57:56,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:56,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:57:56,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:56,464 INFO L87 Difference]: Start difference. First operand 232 states and 287 transitions. Second operand 4 states. [2020-10-26 03:57:56,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:56,728 INFO L93 Difference]: Finished difference Result 231 states and 282 transitions. [2020-10-26 03:57:56,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:57:56,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-26 03:57:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:56,730 INFO L225 Difference]: With dead ends: 231 [2020-10-26 03:57:56,731 INFO L226 Difference]: Without dead ends: 231 [2020-10-26 03:57:56,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:56,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-26 03:57:56,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-10-26 03:57:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-26 03:57:56,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 282 transitions. [2020-10-26 03:57:56,736 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 282 transitions. Word has length 39 [2020-10-26 03:57:56,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:56,737 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 282 transitions. [2020-10-26 03:57:56,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:57:56,737 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 282 transitions. [2020-10-26 03:57:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-26 03:57:56,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:56,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:56,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-26 03:57:56,738 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:56,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:56,739 INFO L82 PathProgramCache]: Analyzing trace with hash -265284683, now seen corresponding path program 1 times [2020-10-26 03:57:56,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:56,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504908599] [2020-10-26 03:57:56,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:56,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:56,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504908599] [2020-10-26 03:57:56,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:56,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:57:56,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704573780] [2020-10-26 03:57:56,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:57:56,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:56,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:57:56,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:56,830 INFO L87 Difference]: Start difference. First operand 231 states and 282 transitions. Second operand 6 states. [2020-10-26 03:57:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:57,484 INFO L93 Difference]: Finished difference Result 339 states and 415 transitions. [2020-10-26 03:57:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:57:57,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-26 03:57:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:57,488 INFO L225 Difference]: With dead ends: 339 [2020-10-26 03:57:57,489 INFO L226 Difference]: Without dead ends: 339 [2020-10-26 03:57:57,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:57:57,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-26 03:57:57,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 230. [2020-10-26 03:57:57,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-26 03:57:57,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 281 transitions. [2020-10-26 03:57:57,495 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 281 transitions. Word has length 39 [2020-10-26 03:57:57,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:57,495 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 281 transitions. [2020-10-26 03:57:57,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:57:57,496 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 281 transitions. [2020-10-26 03:57:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-26 03:57:57,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:57,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:57,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-26 03:57:57,497 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:57,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:57,497 INFO L82 PathProgramCache]: Analyzing trace with hash -265284682, now seen corresponding path program 1 times [2020-10-26 03:57:57,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:57,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205001264] [2020-10-26 03:57:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:57,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:57,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:57,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205001264] [2020-10-26 03:57:57,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:57,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:57:57,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54874680] [2020-10-26 03:57:57,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:57:57,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:57,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:57:57,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:57,612 INFO L87 Difference]: Start difference. First operand 230 states and 281 transitions. Second operand 6 states. [2020-10-26 03:57:58,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:58,375 INFO L93 Difference]: Finished difference Result 366 states and 453 transitions. [2020-10-26 03:57:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:57:58,376 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-26 03:57:58,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:58,378 INFO L225 Difference]: With dead ends: 366 [2020-10-26 03:57:58,378 INFO L226 Difference]: Without dead ends: 366 [2020-10-26 03:57:58,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:57:58,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-10-26 03:57:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 229. [2020-10-26 03:57:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-26 03:57:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 280 transitions. [2020-10-26 03:57:58,385 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 280 transitions. Word has length 39 [2020-10-26 03:57:58,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:58,385 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 280 transitions. [2020-10-26 03:57:58,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:57:58,385 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 280 transitions. [2020-10-26 03:57:58,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-26 03:57:58,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:58,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:58,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-26 03:57:58,387 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:57:58,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:58,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1679773468, now seen corresponding path program 1 times [2020-10-26 03:57:58,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:58,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882815078] [2020-10-26 03:57:58,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:58,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:58,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:58,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882815078] [2020-10-26 03:57:58,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:58,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-26 03:57:58,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481919570] [2020-10-26 03:57:58,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-26 03:57:58,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:58,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-26 03:57:58,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:57:58,757 INFO L87 Difference]: Start difference. First operand 229 states and 280 transitions. Second operand 14 states. [2020-10-26 03:58:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:00,751 INFO L93 Difference]: Finished difference Result 494 states and 573 transitions. [2020-10-26 03:58:00,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-26 03:58:00,752 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 42 [2020-10-26 03:58:00,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:00,755 INFO L225 Difference]: With dead ends: 494 [2020-10-26 03:58:00,755 INFO L226 Difference]: Without dead ends: 494 [2020-10-26 03:58:00,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2020-10-26 03:58:00,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-26 03:58:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 229. [2020-10-26 03:58:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-26 03:58:00,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 279 transitions. [2020-10-26 03:58:00,763 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 279 transitions. Word has length 42 [2020-10-26 03:58:00,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:00,763 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 279 transitions. [2020-10-26 03:58:00,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-26 03:58:00,763 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 279 transitions. [2020-10-26 03:58:00,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-26 03:58:00,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:00,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:00,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-26 03:58:00,765 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:58:00,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:00,765 INFO L82 PathProgramCache]: Analyzing trace with hash 706776470, now seen corresponding path program 1 times [2020-10-26 03:58:00,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:00,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326585538] [2020-10-26 03:58:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:00,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:00,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:58:00,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326585538] [2020-10-26 03:58:00,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:00,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:58:00,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090107677] [2020-10-26 03:58:00,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 03:58:00,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:00,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 03:58:00,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:58:00,892 INFO L87 Difference]: Start difference. First operand 229 states and 279 transitions. Second operand 8 states. [2020-10-26 03:58:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:01,430 INFO L93 Difference]: Finished difference Result 245 states and 295 transitions. [2020-10-26 03:58:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 03:58:01,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-10-26 03:58:01,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:01,432 INFO L225 Difference]: With dead ends: 245 [2020-10-26 03:58:01,432 INFO L226 Difference]: Without dead ends: 245 [2020-10-26 03:58:01,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:58:01,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-10-26 03:58:01,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 238. [2020-10-26 03:58:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-26 03:58:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 288 transitions. [2020-10-26 03:58:01,438 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 288 transitions. Word has length 43 [2020-10-26 03:58:01,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:01,438 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 288 transitions. [2020-10-26 03:58:01,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 03:58:01,439 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 288 transitions. [2020-10-26 03:58:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-26 03:58:01,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:01,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:01,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-26 03:58:01,440 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:58:01,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:01,440 INFO L82 PathProgramCache]: Analyzing trace with hash -356022593, now seen corresponding path program 1 times [2020-10-26 03:58:01,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:01,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499179478] [2020-10-26 03:58:01,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:01,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:01,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499179478] [2020-10-26 03:58:01,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:01,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-26 03:58:01,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039214840] [2020-10-26 03:58:01,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 03:58:01,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:01,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 03:58:01,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-26 03:58:01,733 INFO L87 Difference]: Start difference. First operand 238 states and 288 transitions. Second operand 15 states. [2020-10-26 03:58:03,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:03,183 INFO L93 Difference]: Finished difference Result 255 states and 307 transitions. [2020-10-26 03:58:03,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-26 03:58:03,184 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-10-26 03:58:03,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:03,185 INFO L225 Difference]: With dead ends: 255 [2020-10-26 03:58:03,185 INFO L226 Difference]: Without dead ends: 255 [2020-10-26 03:58:03,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2020-10-26 03:58:03,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-26 03:58:03,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2020-10-26 03:58:03,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-26 03:58:03,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 287 transitions. [2020-10-26 03:58:03,193 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 287 transitions. Word has length 42 [2020-10-26 03:58:03,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:03,193 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 287 transitions. [2020-10-26 03:58:03,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 03:58:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 287 transitions. [2020-10-26 03:58:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-26 03:58:03,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:03,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:03,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-26 03:58:03,195 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:58:03,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:03,195 INFO L82 PathProgramCache]: Analyzing trace with hash -356022592, now seen corresponding path program 1 times [2020-10-26 03:58:03,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:03,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041881271] [2020-10-26 03:58:03,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:03,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:03,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:03,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041881271] [2020-10-26 03:58:03,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:03,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-26 03:58:03,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413217142] [2020-10-26 03:58:03,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 03:58:03,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:03,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 03:58:03,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-26 03:58:03,522 INFO L87 Difference]: Start difference. First operand 237 states and 287 transitions. Second operand 15 states. [2020-10-26 03:58:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:05,060 INFO L93 Difference]: Finished difference Result 254 states and 306 transitions. [2020-10-26 03:58:05,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-26 03:58:05,061 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-10-26 03:58:05,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:05,063 INFO L225 Difference]: With dead ends: 254 [2020-10-26 03:58:05,063 INFO L226 Difference]: Without dead ends: 254 [2020-10-26 03:58:05,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2020-10-26 03:58:05,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-26 03:58:05,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 236. [2020-10-26 03:58:05,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-26 03:58:05,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 286 transitions. [2020-10-26 03:58:05,069 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 286 transitions. Word has length 42 [2020-10-26 03:58:05,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:05,070 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 286 transitions. [2020-10-26 03:58:05,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 03:58:05,070 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 286 transitions. [2020-10-26 03:58:05,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-26 03:58:05,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:05,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:05,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-26 03:58:05,071 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:58:05,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:05,072 INFO L82 PathProgramCache]: Analyzing trace with hash 769555222, now seen corresponding path program 1 times [2020-10-26 03:58:05,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:05,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662998085] [2020-10-26 03:58:05,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:05,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:58:05,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662998085] [2020-10-26 03:58:05,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:05,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:58:05,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339414926] [2020-10-26 03:58:05,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:58:05,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:05,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:58:05,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:58:05,145 INFO L87 Difference]: Start difference. First operand 236 states and 286 transitions. Second operand 4 states. [2020-10-26 03:58:05,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:05,432 INFO L93 Difference]: Finished difference Result 246 states and 290 transitions. [2020-10-26 03:58:05,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:58:05,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-26 03:58:05,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:05,434 INFO L225 Difference]: With dead ends: 246 [2020-10-26 03:58:05,434 INFO L226 Difference]: Without dead ends: 246 [2020-10-26 03:58:05,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:58:05,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-26 03:58:05,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 237. [2020-10-26 03:58:05,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-26 03:58:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 287 transitions. [2020-10-26 03:58:05,449 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 287 transitions. Word has length 43 [2020-10-26 03:58:05,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:05,449 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 287 transitions. [2020-10-26 03:58:05,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:58:05,449 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 287 transitions. [2020-10-26 03:58:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-26 03:58:05,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:05,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:05,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-26 03:58:05,454 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:58:05,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:05,455 INFO L82 PathProgramCache]: Analyzing trace with hash 194026000, now seen corresponding path program 1 times [2020-10-26 03:58:05,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:05,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814530682] [2020-10-26 03:58:05,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:05,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:05,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814530682] [2020-10-26 03:58:05,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:05,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:58:05,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456215789] [2020-10-26 03:58:05,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:58:05,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:05,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:58:05,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:58:05,516 INFO L87 Difference]: Start difference. First operand 237 states and 287 transitions. Second operand 4 states. [2020-10-26 03:58:05,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:05,770 INFO L93 Difference]: Finished difference Result 238 states and 288 transitions. [2020-10-26 03:58:05,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:58:05,770 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-26 03:58:05,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:05,772 INFO L225 Difference]: With dead ends: 238 [2020-10-26 03:58:05,772 INFO L226 Difference]: Without dead ends: 238 [2020-10-26 03:58:05,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:58:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-26 03:58:05,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-26 03:58:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-26 03:58:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 288 transitions. [2020-10-26 03:58:05,778 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 288 transitions. Word has length 44 [2020-10-26 03:58:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:05,778 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 288 transitions. [2020-10-26 03:58:05,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:58:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 288 transitions. [2020-10-26 03:58:05,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-26 03:58:05,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:05,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:05,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-26 03:58:05,780 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr70ENSURES_VIOLATIONMEMORY_LEAK, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:58:05,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:05,781 INFO L82 PathProgramCache]: Analyzing trace with hash 407459685, now seen corresponding path program 1 times [2020-10-26 03:58:05,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:05,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007045848] [2020-10-26 03:58:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:58:05,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:58:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:58:05,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:58:05,849 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 03:58:05,849 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 03:58:05,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-26 03:58:05,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:58:05 BoogieIcfgContainer [2020-10-26 03:58:05,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:58:05,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:58:05,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:58:05,894 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:58:05,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:30" (3/4) ... [2020-10-26 03:58:05,898 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 03:58:05,954 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:58:05,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:58:05,955 INFO L168 Benchmark]: Toolchain (without parser) took 37182.89 ms. Allocated memory was 52.4 MB in the beginning and 161.5 MB in the end (delta: 109.1 MB). Free memory was 29.0 MB in the beginning and 77.3 MB in the end (delta: -48.3 MB). Peak memory consumption was 63.5 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:05,956 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 35.7 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 19.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:58:05,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.61 ms. Allocated memory is still 52.4 MB. Free memory was 28.4 MB in the beginning and 31.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:05,956 INFO L168 Benchmark]: Boogie Preprocessor took 80.03 ms. Allocated memory is still 52.4 MB. Free memory was 31.0 MB in the beginning and 27.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:05,957 INFO L168 Benchmark]: RCFGBuilder took 992.28 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 37.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:05,958 INFO L168 Benchmark]: TraceAbstraction took 35492.12 ms. Allocated memory was 62.9 MB in the beginning and 161.5 MB in the end (delta: 98.6 MB). Free memory was 37.1 MB in the beginning and 79.4 MB in the end (delta: -42.3 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:05,958 INFO L168 Benchmark]: Witness Printer took 59.97 ms. Allocated memory is still 161.5 MB. Free memory was 79.4 MB in the beginning and 77.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:05,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 35.7 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 19.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 544.61 ms. Allocated memory is still 52.4 MB. Free memory was 28.4 MB in the beginning and 31.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.03 ms. Allocated memory is still 52.4 MB. Free memory was 31.0 MB in the beginning and 27.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 992.28 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 37.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35492.12 ms. Allocated memory was 62.9 MB in the beginning and 161.5 MB in the end (delta: 98.6 MB). Free memory was 37.1 MB in the beginning and 79.4 MB in the end (delta: -42.3 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. * Witness Printer took 59.97 ms. Allocated memory is still 161.5 MB. Free memory was 79.4 MB in the beginning and 77.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* list = malloc(sizeof(SLL)); VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1004] list->next = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1005] list->prev = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(!(list != ((void*)0))) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1006] list->inner = malloc(sizeof(SLL)) VAL [list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1006] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1006] list->inner->next = ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1006] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1006] list->inner->inner = ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1006] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1006] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, list->inner != ((void*)0) || list->inner == ((void*)0)=1, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1008] SLL* end = list; VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1022] end = ((void*)0) [L1023] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1026] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1028] COND TRUE ((void*)0) != end [L1030] int len = 0; VAL [end={-1:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1031] EXPR end->inner VAL [end={-1:0}, end->inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1031] SLL* inner = end->inner; [L1032] COND TRUE ((void*)0) != inner VAL [end={-1:0}, inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1034] COND TRUE len == 0 [L1035] len = 1 VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1038] COND FALSE !(!(((void*)0) != inner)) VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1039] EXPR inner->inner VAL [end={-1:0}, inner={-2:0}, inner->inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1039] COND FALSE !(!(((void*)0) == inner->inner)) [L1040] EXPR inner->next VAL [end={-1:0}, inner={-2:0}, inner->next={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1040] COND TRUE !(((void*)0) != inner->next) [L1040] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-01-1.c", 12, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 72 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.3s, OverallIterations: 33, TraceHistogramMax: 2, AutomataDifference: 28.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5017 SDtfs, 6892 SDslu, 13611 SDs, 0 SdLazy, 18595 SolverSat, 871 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 445 GetRequests, 114 SyntacticMatches, 3 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=238occurred in iteration=28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 32 MinimizatonAttempts, 2345 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 1012 NumberOfCodeBlocks, 1012 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 934 ConstructedInterpolants, 9 QuantifiedInterpolants, 266879 SizeOfPredicates, 9 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 33 InterpolantComputations, 31 PerfectInterpolantSequences, 4/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...