/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:02:09,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:02:09,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:02:09,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 23:02:09,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 23:02:09,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 23:02:09,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 23:02:09,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 23:02:09,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 23:02:09,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 23:02:09,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 23:02:09,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 23:02:09,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:02:09,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:02:09,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:02:09,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:02:09,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:02:09,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:02:09,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:02:09,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:02:09,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:02:09,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:02:09,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:02:09,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:02:09,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:02:09,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:02:09,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:02:09,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:02:09,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:02:09,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:02:09,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:02:09,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:02:09,418 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:02:09,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:02:09,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:02:09,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:02:09,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:02:09,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:02:09,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:02:09,420 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:02:09,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:02:09,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:02:09,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:02:09,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:02:09,422 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:02:09,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:02:09,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:02:09,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:02:09,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:02:09,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:02:09,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:02:09,424 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:02:09,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:02:09,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:02:09,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:02:09,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:02:09,927 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:02:09,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2021-02-23 23:02:10,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bb3a5ddf/6a9430598e484e0da729d96b96805bcd/FLAG64dfdb7f2 [2021-02-23 23:02:10,794 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:02:10,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2021-02-23 23:02:10,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bb3a5ddf/6a9430598e484e0da729d96b96805bcd/FLAG64dfdb7f2 [2021-02-23 23:02:11,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bb3a5ddf/6a9430598e484e0da729d96b96805bcd [2021-02-23 23:02:11,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:02:11,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:02:11,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:02:11,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:02:11,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:02:11,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:02:11" (1/1) ... [2021-02-23 23:02:11,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eee16a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11, skipping insertion in model container [2021-02-23 23:02:11,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:02:11" (1/1) ... [2021-02-23 23:02:11,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:02:11,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:02:11,458 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i[22634,22647] [2021-02-23 23:02:11,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:02:11,548 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:02:11,584 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i[22634,22647] [2021-02-23 23:02:11,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:02:11,711 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:02:11,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11 WrapperNode [2021-02-23 23:02:11,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:02:11,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:02:11,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:02:11,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:02:11,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11" (1/1) ... [2021-02-23 23:02:11,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11" (1/1) ... [2021-02-23 23:02:11,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11" (1/1) ... [2021-02-23 23:02:11,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11" (1/1) ... [2021-02-23 23:02:11,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11" (1/1) ... [2021-02-23 23:02:11,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11" (1/1) ... [2021-02-23 23:02:11,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11" (1/1) ... [2021-02-23 23:02:11,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:02:11,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:02:11,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:02:11,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:02:11,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:02:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:02:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:02:11,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-02-23 23:02:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:02:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-23 23:02:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-23 23:02:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-02-23 23:02:11,999 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2021-02-23 23:02:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2021-02-23 23:02:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2021-02-23 23:02:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2021-02-23 23:02:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2021-02-23 23:02:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2021-02-23 23:02:12,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2021-02-23 23:02:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2021-02-23 23:02:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2021-02-23 23:02:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2021-02-23 23:02:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2021-02-23 23:02:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2021-02-23 23:02:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2021-02-23 23:02:12,002 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2021-02-23 23:02:12,002 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2021-02-23 23:02:12,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:02:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:02:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:02:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 23:02:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 23:02:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:02:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:02:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-23 23:02:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-23 23:02:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-23 23:02:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-23 23:02:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-23 23:02:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-23 23:02:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-23 23:02:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-23 23:02:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-23 23:02:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-23 23:02:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-23 23:02:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-23 23:02:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-23 23:02:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-23 23:02:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-23 23:02:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-23 23:02:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-23 23:02:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-23 23:02:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-23 23:02:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-23 23:02:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-23 23:02:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-23 23:02:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-23 23:02:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-23 23:02:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-23 23:02:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-23 23:02:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-23 23:02:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-23 23:02:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-23 23:02:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-23 23:02:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-23 23:02:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-23 23:02:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-23 23:02:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-23 23:02:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-23 23:02:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-23 23:02:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-23 23:02:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-23 23:02:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-23 23:02:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-23 23:02:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-23 23:02:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-23 23:02:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-23 23:02:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-23 23:02:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-23 23:02:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-23 23:02:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-23 23:02:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-23 23:02:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-23 23:02:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-23 23:02:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-23 23:02:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-23 23:02:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 23:02:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 23:02:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-23 23:02:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 23:02:12,011 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-23 23:02:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-23 23:02:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-23 23:02:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-23 23:02:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-23 23:02:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-23 23:02:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-23 23:02:12,012 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-23 23:02:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 23:02:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-23 23:02:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-23 23:02:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-23 23:02:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-23 23:02:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-23 23:02:12,013 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-23 23:02:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-23 23:02:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-23 23:02:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-23 23:02:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-23 23:02:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-23 23:02:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-23 23:02:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-23 23:02:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-23 23:02:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-23 23:02:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-23 23:02:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-23 23:02:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-23 23:02:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-23 23:02:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-23 23:02:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-23 23:02:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-23 23:02:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-23 23:02:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-23 23:02:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-23 23:02:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-23 23:02:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-23 23:02:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-23 23:02:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-23 23:02:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-23 23:02:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-23 23:02:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-23 23:02:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-23 23:02:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-23 23:02:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-23 23:02:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-23 23:02:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-23 23:02:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-23 23:02:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-23 23:02:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:02:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-02-23 23:02:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2021-02-23 23:02:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 23:02:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 23:02:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2021-02-23 23:02:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2021-02-23 23:02:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 23:02:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2021-02-23 23:02:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-02-23 23:02:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-23 23:02:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:02:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2021-02-23 23:02:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2021-02-23 23:02:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2021-02-23 23:02:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2021-02-23 23:02:12,020 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2021-02-23 23:02:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2021-02-23 23:02:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2021-02-23 23:02:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2021-02-23 23:02:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2021-02-23 23:02:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2021-02-23 23:02:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2021-02-23 23:02:12,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:02:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:02:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:02:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:02:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:02:12,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:02:13,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:02:13,079 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-02-23 23:02:13,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:02:13 BoogieIcfgContainer [2021-02-23 23:02:13,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:02:13,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:02:13,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:02:13,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:02:13,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:02:11" (1/3) ... [2021-02-23 23:02:13,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103348eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:02:13, skipping insertion in model container [2021-02-23 23:02:13,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:02:11" (2/3) ... [2021-02-23 23:02:13,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103348eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:02:13, skipping insertion in model container [2021-02-23 23:02:13,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:02:13" (3/3) ... [2021-02-23 23:02:13,109 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2021-02-23 23:02:13,117 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:02:13,125 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:02:13,147 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:02:13,178 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:02:13,178 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:02:13,178 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:02:13,178 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:02:13,178 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:02:13,179 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:02:13,179 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:02:13,179 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:02:13,211 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2021-02-23 23:02:13,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-02-23 23:02:13,233 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:02:13,235 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:02:13,235 INFO L428 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:02:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:02:13,250 INFO L82 PathProgramCache]: Analyzing trace with hash -307813688, now seen corresponding path program 1 times [2021-02-23 23:02:13,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:02:13,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328565230] [2021-02-23 23:02:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:02:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:13,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:13,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:13,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:13,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:13,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:13,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:13,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:13,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 23:02:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:13,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:13,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:13,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:14,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:14,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:14,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:14,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:14,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:14,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:14,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:14,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:14,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:14,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:14,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:14,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:14,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:14,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:02:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:14,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:14,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:14,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:14,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:14,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:14,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:14,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:14,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-02-23 23:02:14,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328565230] [2021-02-23 23:02:14,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:02:14,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:02:14,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066719320] [2021-02-23 23:02:14,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:02:14,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:02:14,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:02:14,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:02:14,248 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2021-02-23 23:02:15,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:02:15,190 INFO L93 Difference]: Finished difference Result 573 states and 772 transitions. [2021-02-23 23:02:15,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 23:02:15,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2021-02-23 23:02:15,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:02:15,212 INFO L225 Difference]: With dead ends: 573 [2021-02-23 23:02:15,212 INFO L226 Difference]: Without dead ends: 279 [2021-02-23 23:02:15,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 23:02:15,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-02-23 23:02:15,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 259. [2021-02-23 23:02:15,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2021-02-23 23:02:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 288 transitions. [2021-02-23 23:02:15,342 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 288 transitions. Word has length 89 [2021-02-23 23:02:15,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:02:15,344 INFO L480 AbstractCegarLoop]: Abstraction has 259 states and 288 transitions. [2021-02-23 23:02:15,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:02:15,344 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 288 transitions. [2021-02-23 23:02:15,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-02-23 23:02:15,350 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:02:15,350 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:02:15,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:02:15,351 INFO L428 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:02:15,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:02:15,352 INFO L82 PathProgramCache]: Analyzing trace with hash -206201793, now seen corresponding path program 1 times [2021-02-23 23:02:15,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:02:15,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035098723] [2021-02-23 23:02:15,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:02:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:15,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:15,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:15,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:15,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:15,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:15,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 23:02:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:02:15,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:02:15,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,802 WARN L141 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-02-23 23:02:15,804 WARN L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-02-23 23:02:15,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:02:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:15,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:15,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-02-23 23:02:15,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035098723] [2021-02-23 23:02:15,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:02:15,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-02-23 23:02:15,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790824904] [2021-02-23 23:02:15,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 23:02:15,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:02:15,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 23:02:15,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-02-23 23:02:15,977 INFO L87 Difference]: Start difference. First operand 259 states and 288 transitions. Second operand 13 states. [2021-02-23 23:02:18,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:02:18,050 INFO L93 Difference]: Finished difference Result 546 states and 625 transitions. [2021-02-23 23:02:18,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 23:02:18,051 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2021-02-23 23:02:18,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:02:18,056 INFO L225 Difference]: With dead ends: 546 [2021-02-23 23:02:18,057 INFO L226 Difference]: Without dead ends: 300 [2021-02-23 23:02:18,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-02-23 23:02:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-02-23 23:02:18,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 280. [2021-02-23 23:02:18,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2021-02-23 23:02:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 311 transitions. [2021-02-23 23:02:18,110 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 311 transitions. Word has length 91 [2021-02-23 23:02:18,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:02:18,110 INFO L480 AbstractCegarLoop]: Abstraction has 280 states and 311 transitions. [2021-02-23 23:02:18,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 23:02:18,111 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 311 transitions. [2021-02-23 23:02:18,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-02-23 23:02:18,114 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:02:18,115 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:02:18,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:02:18,115 INFO L428 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:02:18,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:02:18,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1644354155, now seen corresponding path program 1 times [2021-02-23 23:02:18,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:02:18,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685505989] [2021-02-23 23:02:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:02:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:18,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:18,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:18,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:18,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:18,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:18,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:18,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:18,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:18,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:18,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:18,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 23:02:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:18,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:18,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:18,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:18,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:02:18,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:18,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:18,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:18,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:18,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:02:19,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:02:19,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:02:19,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:02:19,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:02:19,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:02:19,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:19,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:19,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:19,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 23:02:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:02:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-02-23 23:02:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 23:02:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:02:19,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:19,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:19,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:19,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:02:19,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:19,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:02:19,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:20,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:02:20,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:02:20,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:02:20,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:02:20,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:20,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:20,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:20,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:20,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:02:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:20,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:02:20,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 23:02:20,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:20,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:20,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 23:02:20,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 23:02:20,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 23:02:20,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:02:20,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:02:20,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 23:02:20,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:20,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:02:20,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:20,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:02:20,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:21,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:21,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:21,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:21,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:21,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-23 23:02:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 141 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-02-23 23:02:21,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685505989] [2021-02-23 23:02:21,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:02:21,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2021-02-23 23:02:21,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971181633] [2021-02-23 23:02:21,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-02-23 23:02:21,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:02:21,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-02-23 23:02:21,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1540, Unknown=0, NotChecked=0, Total=1640 [2021-02-23 23:02:21,613 INFO L87 Difference]: Start difference. First operand 280 states and 311 transitions. Second operand 41 states. [2021-02-23 23:02:29,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:02:29,916 INFO L93 Difference]: Finished difference Result 578 states and 659 transitions. [2021-02-23 23:02:29,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-23 23:02:29,917 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 239 [2021-02-23 23:02:29,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:02:29,923 INFO L225 Difference]: With dead ends: 578 [2021-02-23 23:02:29,923 INFO L226 Difference]: Without dead ends: 315 [2021-02-23 23:02:29,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=341, Invalid=5061, Unknown=0, NotChecked=0, Total=5402 [2021-02-23 23:02:29,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-02-23 23:02:29,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 290. [2021-02-23 23:02:29,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-02-23 23:02:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 323 transitions. [2021-02-23 23:02:29,995 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 323 transitions. Word has length 239 [2021-02-23 23:02:29,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:02:29,996 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 323 transitions. [2021-02-23 23:02:29,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2021-02-23 23:02:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 323 transitions. [2021-02-23 23:02:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-23 23:02:30,000 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:02:30,000 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:02:30,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:02:30,001 INFO L428 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:02:30,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:02:30,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1822223879, now seen corresponding path program 1 times [2021-02-23 23:02:30,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:02:30,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617252525] [2021-02-23 23:02:30,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:02:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:30,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:30,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:30,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:30,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:30,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:30,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 23:02:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 23:02:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 23:02:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 23:02:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:30,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:30,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:30,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 23:02:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:31,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:31,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:31,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:31,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:02:31,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 23:02:31,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:31,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:31,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 23:02:31,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:02:31,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:31,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:02:31,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 23:02:31,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 23:02:31,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 23:02:31,397 WARN L141 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-02-23 23:02:31,399 WARN L147 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size 28 [2021-02-23 23:02:31,448 WARN L141 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size [2021-02-23 23:02:31,449 WARN L147 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size 34 [2021-02-23 23:02:31,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:02:31,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:31,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 23:02:31,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 23:02:31,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:02:31,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:02:31,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-02-23 23:02:31,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 23:02:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:31,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:31,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:31,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:31,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:31,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:31,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:32,347 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 95 proven. 23 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-02-23 23:02:32,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617252525] [2021-02-23 23:02:32,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:02:32,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2021-02-23 23:02:32,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425444264] [2021-02-23 23:02:32,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-23 23:02:32,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:02:32,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-23 23:02:32,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-23 23:02:32,351 INFO L87 Difference]: Start difference. First operand 290 states and 323 transitions. Second operand 25 states. [2021-02-23 23:02:33,765 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2021-02-23 23:02:34,156 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-02-23 23:02:34,495 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-02-23 23:02:34,776 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-02-23 23:02:38,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:02:38,337 INFO L93 Difference]: Finished difference Result 581 states and 656 transitions. [2021-02-23 23:02:38,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 23:02:38,344 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 243 [2021-02-23 23:02:38,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:02:38,348 INFO L225 Difference]: With dead ends: 581 [2021-02-23 23:02:38,348 INFO L226 Difference]: Without dead ends: 310 [2021-02-23 23:02:38,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 23:02:38,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-02-23 23:02:38,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 290. [2021-02-23 23:02:38,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-02-23 23:02:38,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 321 transitions. [2021-02-23 23:02:38,434 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 321 transitions. Word has length 243 [2021-02-23 23:02:38,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:02:38,435 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 321 transitions. [2021-02-23 23:02:38,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-23 23:02:38,435 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 321 transitions. [2021-02-23 23:02:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-02-23 23:02:38,439 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:02:38,440 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:02:38,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 23:02:38,440 INFO L428 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:02:38,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:02:38,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1985515759, now seen corresponding path program 1 times [2021-02-23 23:02:38,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:02:38,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200930661] [2021-02-23 23:02:38,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:02:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:38,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:38,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:38,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:38,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:38,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:38,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:38,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:38,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:38,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:38,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:38,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 23:02:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:38,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:38,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:38,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:38,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:02:38,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:38,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:38,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:38,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:02:39,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:02:39,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:02:39,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:02:39,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:02:39,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:02:39,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:39,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:39,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:39,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 23:02:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:39,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:39,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:39,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:39,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:39,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:02:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:39,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:39,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:39,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 23:02:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:02:39,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 23:02:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:39,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 23:02:39,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 23:02:39,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 23:02:39,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:02:39,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:02:39,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 23:02:39,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:39,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:02:39,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:39,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:02:40,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:40,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:40,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:02:40,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-02-23 23:02:40,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 23:02:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:40,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:40,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:40,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:40,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:40,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:40,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:40,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:40,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:40,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:40,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:02:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:40,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:40,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:40,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:40,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:40,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:40,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:40,663 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 38 proven. 38 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-02-23 23:02:40,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200930661] [2021-02-23 23:02:40,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:02:40,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2021-02-23 23:02:40,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328361173] [2021-02-23 23:02:40,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-02-23 23:02:40,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:02:40,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-02-23 23:02:40,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1038, Unknown=0, NotChecked=0, Total=1122 [2021-02-23 23:02:40,666 INFO L87 Difference]: Start difference. First operand 290 states and 321 transitions. Second operand 34 states. [2021-02-23 23:02:42,232 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2021-02-23 23:02:42,431 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2021-02-23 23:02:42,677 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-02-23 23:02:42,934 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-02-23 23:02:43,166 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-02-23 23:02:48,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:02:48,247 INFO L93 Difference]: Finished difference Result 592 states and 663 transitions. [2021-02-23 23:02:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-02-23 23:02:48,247 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 241 [2021-02-23 23:02:48,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:02:48,252 INFO L225 Difference]: With dead ends: 592 [2021-02-23 23:02:48,252 INFO L226 Difference]: Without dead ends: 321 [2021-02-23 23:02:48,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=270, Invalid=3036, Unknown=0, NotChecked=0, Total=3306 [2021-02-23 23:02:48,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-02-23 23:02:48,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 299. [2021-02-23 23:02:48,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-02-23 23:02:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 331 transitions. [2021-02-23 23:02:48,298 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 331 transitions. Word has length 241 [2021-02-23 23:02:48,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:02:48,299 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 331 transitions. [2021-02-23 23:02:48,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-02-23 23:02:48,299 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 331 transitions. [2021-02-23 23:02:48,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-23 23:02:48,302 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:02:48,303 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:02:48,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 23:02:48,303 INFO L428 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:02:48,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:02:48,304 INFO L82 PathProgramCache]: Analyzing trace with hash -159569349, now seen corresponding path program 1 times [2021-02-23 23:02:48,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:02:48,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671606958] [2021-02-23 23:02:48,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:02:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:48,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:48,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:48,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:48,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:48,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:48,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:48,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:02:48,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:48,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:48,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:48,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 23:02:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:48,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:48,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:48,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:48,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:02:48,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 23:02:48,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:48,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:48,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:49,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 23:02:49,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:02:49,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:49,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:02:49,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 23:02:49,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 23:02:49,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 23:02:49,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-23 23:02:49,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 23:02:49,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:02:49,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:49,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 23:02:49,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 23:02:49,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:02:49,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:02:49,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 23:02:49,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:49,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 487 [2021-02-23 23:02:49,998 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-23 23:02:50,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 23:02:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:02:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 23:02:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 23:02:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:02:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:02:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:02:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:02:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:02:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:02:50,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:02:50,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:02:50,808 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 25 proven. 40 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-02-23 23:02:50,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671606958] [2021-02-23 23:02:50,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:02:50,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2021-02-23 23:02:50,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786566237] [2021-02-23 23:02:50,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-23 23:02:50,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:02:50,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-23 23:02:50,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-23 23:02:50,812 INFO L87 Difference]: Start difference. First operand 299 states and 331 transitions. Second operand 25 states. [2021-02-23 23:02:51,409 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-23 23:02:51,838 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-23 23:02:53,158 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-02-23 23:02:53,874 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-02-23 23:02:54,632 WARN L202 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-02-23 23:02:55,275 WARN L202 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-02-23 23:03:00,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:03:00,190 INFO L93 Difference]: Finished difference Result 596 states and 661 transitions. [2021-02-23 23:03:00,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 23:03:00,191 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 243 [2021-02-23 23:03:00,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:03:00,196 INFO L225 Difference]: With dead ends: 596 [2021-02-23 23:03:00,196 INFO L226 Difference]: Without dead ends: 319 [2021-02-23 23:03:00,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 23:03:00,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-02-23 23:03:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 299. [2021-02-23 23:03:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-02-23 23:03:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 329 transitions. [2021-02-23 23:03:00,238 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 329 transitions. Word has length 243 [2021-02-23 23:03:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:03:00,239 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 329 transitions. [2021-02-23 23:03:00,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-23 23:03:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 329 transitions. [2021-02-23 23:03:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-02-23 23:03:00,242 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:03:00,242 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:03:00,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 23:03:00,243 INFO L428 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:03:00,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:03:00,244 INFO L82 PathProgramCache]: Analyzing trace with hash -279275528, now seen corresponding path program 1 times [2021-02-23 23:03:00,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:03:00,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523469960] [2021-02-23 23:03:00,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:03:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:00,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:00,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:00,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:03:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:00,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:00,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 23:03:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:00,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:03:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:00,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:00,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:00,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:00,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:03:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:00,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:00,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:00,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:00,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:00,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:00,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 23:03:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:00,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:00,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:00,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:03:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:03:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:03:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 23:03:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:03:01,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:01,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:03:01,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:03:01,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:03:01,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:01,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:01,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:01,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:01,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 23:03:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:03:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:03:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:03:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:01,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:01,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:01,735 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-02-23 23:03:01,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523469960] [2021-02-23 23:03:01,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:03:01,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2021-02-23 23:03:01,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336147568] [2021-02-23 23:03:01,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-23 23:03:01,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:03:01,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-23 23:03:01,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2021-02-23 23:03:01,737 INFO L87 Difference]: Start difference. First operand 299 states and 329 transitions. Second operand 24 states. [2021-02-23 23:03:06,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:03:06,305 INFO L93 Difference]: Finished difference Result 531 states and 594 transitions. [2021-02-23 23:03:06,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-23 23:03:06,308 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 242 [2021-02-23 23:03:06,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:03:06,312 INFO L225 Difference]: With dead ends: 531 [2021-02-23 23:03:06,313 INFO L226 Difference]: Without dead ends: 421 [2021-02-23 23:03:06,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2021-02-23 23:03:06,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-02-23 23:03:06,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 336. [2021-02-23 23:03:06,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2021-02-23 23:03:06,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 371 transitions. [2021-02-23 23:03:06,361 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 371 transitions. Word has length 242 [2021-02-23 23:03:06,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:03:06,362 INFO L480 AbstractCegarLoop]: Abstraction has 336 states and 371 transitions. [2021-02-23 23:03:06,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-23 23:03:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 371 transitions. [2021-02-23 23:03:06,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-02-23 23:03:06,366 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:03:06,366 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:03:06,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 23:03:06,366 INFO L428 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:03:06,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:03:06,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1639303553, now seen corresponding path program 1 times [2021-02-23 23:03:06,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:03:06,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545179180] [2021-02-23 23:03:06,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:03:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:06,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:06,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:06,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:06,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:06,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:06,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:06,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:06,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:03:06,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:06,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:03:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:06,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:06,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:06,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 23:03:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:07,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:07,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:07,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:03:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:07,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:07,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:03:07,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 23:03:07,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 23:03:07,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:07,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:03:07,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:03:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:07,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:03:07,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 23:03:07,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:07,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:03:07,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:03:07,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:03:07,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 23:03:07,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:07,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:07,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:03:08,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:03:08,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:03:08,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 23:03:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:08,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:03:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:08,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 23:03:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:08,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:08,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:08,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 23:03:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:08,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:08,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:03:08,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 23:03:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:03:08,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 23:03:08,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 23:03:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:08,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:08,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:03:08,630 WARN L141 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size [2021-02-23 23:03:08,632 WARN L147 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size 35 [2021-02-23 23:03:08,710 WARN L141 QuantifierPusher]: treesize reduction 48, result has 51.5 percent of original size [2021-02-23 23:03:08,712 WARN L147 QuantifierPusher]: treesize reduction 48, result has 51.5 percent of original size 51 [2021-02-23 23:03:08,814 WARN L141 QuantifierPusher]: treesize reduction 48, result has 54.7 percent of original size [2021-02-23 23:03:08,816 WARN L147 QuantifierPusher]: treesize reduction 48, result has 54.7 percent of original size 58 [2021-02-23 23:03:08,939 WARN L141 QuantifierPusher]: treesize reduction 111, result has 39.7 percent of original size [2021-02-23 23:03:08,940 WARN L147 QuantifierPusher]: treesize reduction 111, result has 39.7 percent of original size 73 [2021-02-23 23:03:09,117 WARN L141 QuantifierPusher]: treesize reduction 137, result has 42.7 percent of original size [2021-02-23 23:03:09,119 WARN L147 QuantifierPusher]: treesize reduction 137, result has 42.7 percent of original size 102 [2021-02-23 23:03:09,333 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-02-23 23:03:09,340 WARN L141 QuantifierPusher]: treesize reduction 137, result has 46.9 percent of original size [2021-02-23 23:03:09,342 WARN L147 QuantifierPusher]: treesize reduction 137, result has 46.9 percent of original size 121 [2021-02-23 23:03:09,657 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-02-23 23:03:09,662 WARN L141 QuantifierPusher]: treesize reduction 101, result has 39.9 percent of original size [2021-02-23 23:03:09,664 WARN L147 QuantifierPusher]: treesize reduction 101, result has 39.9 percent of original size 67 [2021-02-23 23:03:09,810 WARN L141 QuantifierPusher]: treesize reduction 48, result has 56.4 percent of original size [2021-02-23 23:03:09,811 WARN L147 QuantifierPusher]: treesize reduction 48, result has 56.4 percent of original size 62 [2021-02-23 23:03:09,941 WARN L141 QuantifierPusher]: treesize reduction 51, result has 56.0 percent of original size [2021-02-23 23:03:09,942 WARN L147 QuantifierPusher]: treesize reduction 51, result has 56.0 percent of original size 65 [2021-02-23 23:03:10,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:10,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 23:03:10,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 23:03:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:10,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:10,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 23:03:10,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:10,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 23:03:10,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:10,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 23:03:10,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:10,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 23:03:10,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:10,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 23:03:10,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:10,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-02-23 23:03:10,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 23:03:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:03:10,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:10,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-23 23:03:11,757 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-23 23:03:11,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:11,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-23 23:03:11,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:11,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-23 23:03:11,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:03:11,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-23 23:03:11,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:03:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:06:38,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:38,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:06:39,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:39,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 23:06:39,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:06:39,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36