/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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:12:56,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:12:56,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:12:56,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:12:56,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:12:56,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:12:56,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:12:56,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:12:56,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:12:56,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:12:56,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:12:56,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:12:56,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:12:56,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:12:56,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:12:56,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:12:56,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:12:56,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:12:56,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:12:56,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:12:56,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:12:56,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:12:56,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:12:56,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:12:56,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 05:12:56,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 05:12:56,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 05:12:56,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 05:12:56,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 05:12:56,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 05:12:56,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 05:12:56,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 05:12:56,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 05:12:56,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 05:12:56,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 05:12:56,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 05:12:56,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 05:12:56,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 05:12:56,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:12:57,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:12:57,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:12:57,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:12:57,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:12:57,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:12:57,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:12:57,031 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:12:57,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:12:57,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:12:57,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:12:57,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:12:57,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:12:57,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:12:57,033 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:12:57,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:12:57,034 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:12:57,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:12:57,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:12:57,035 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:12:57,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:12:57,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:12:57,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:12:57,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:12:57,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:12:57,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:12:57,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:12:57,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:12:57,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:12:57,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:12:57,542 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:12:57,543 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:12:57,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-11-07 05:12:57,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55c55d320/b0f7e65e548a4c7ebf00abe178eed60e/FLAG916c9a140 [2020-11-07 05:12:58,495 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:12:58,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-11-07 05:12:58,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55c55d320/b0f7e65e548a4c7ebf00abe178eed60e/FLAG916c9a140 [2020-11-07 05:12:58,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55c55d320/b0f7e65e548a4c7ebf00abe178eed60e [2020-11-07 05:12:58,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:12:58,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:12:58,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:12:58,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:12:58,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:12:58,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:12:58" (1/1) ... [2020-11-07 05:12:58,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f965597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:58, skipping insertion in model container [2020-11-07 05:12:58,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:12:58" (1/1) ... [2020-11-07 05:12:58,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:12:58,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:12:59,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:12:59,314 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:12:59,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:12:59,464 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:12:59,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59 WrapperNode [2020-11-07 05:12:59,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:12:59,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:12:59,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:12:59,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:12:59,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59" (1/1) ... [2020-11-07 05:12:59,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59" (1/1) ... [2020-11-07 05:12:59,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59" (1/1) ... [2020-11-07 05:12:59,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59" (1/1) ... [2020-11-07 05:12:59,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59" (1/1) ... [2020-11-07 05:12:59,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59" (1/1) ... [2020-11-07 05:12:59,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59" (1/1) ... [2020-11-07 05:12:59,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:12:59,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:12:59,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:12:59,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:12:59,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:12:59,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:12:59,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:12:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-07 05:12:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:12:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 05:12:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 05:12:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-11-07 05:12:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-11-07 05:12:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-11-07 05:12:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-11-07 05:12:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-11-07 05:12:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-11-07 05:12:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-11-07 05:12:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-11-07 05:12:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-11-07 05:12:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-11-07 05:12:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-11-07 05:12:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-11-07 05:12:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-11-07 05:12:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-11-07 05:12:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-11-07 05:12:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-11-07 05:12:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:12:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:12:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:12:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 05:12:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 05:12:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:12:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:12:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 05:12:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 05:12:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 05:12:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 05:12:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 05:12:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 05:12:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 05:12:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 05:12:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 05:12:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 05:12:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 05:12:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 05:12:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 05:12:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 05:12:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 05:12:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 05:12:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 05:12:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 05:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 05:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 05:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 05:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 05:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 05:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 05:12:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 05:12:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 05:12:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 05:12:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 05:12:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 05:12:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 05:12:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 05:12:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 05:12:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 05:12:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 05:12:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 05:12:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 05:12:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 05:12:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 05:12:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 05:12:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 05:12:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 05:12:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 05:12:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 05:12:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 05:12:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 05:12:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 05:12:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 05:12:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 05:12:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 05:12:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 05:12:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 05:12:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 05:12:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 05:12:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 05:12:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 05:12:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 05:12:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 05:12:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 05:12:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 05:12:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 05:12:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-07 05:12:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 05:12:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-07 05:12:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 05:12:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:12:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-07 05:12:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 05:12:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 05:12:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 05:12:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 05:12:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 05:12:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 05:12:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 05:12:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 05:12:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 05:12:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 05:12:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 05:12:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 05:12:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 05:12:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 05:12:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 05:12:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 05:12:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 05:12:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 05:12:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 05:12:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 05:12:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 05:12:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 05:12:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 05:12:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 05:12:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 05:12:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 05:12:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 05:12:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 05:12:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 05:12:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 05:12:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 05:12:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 05:12:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 05:12:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 05:12:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 05:12:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 05:12:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 05:12:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 05:12:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:12:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-11-07 05:12:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-11-07 05:12:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 05:12:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 05:12:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-11-07 05:12:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-11-07 05:12:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 05:12:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-11-07 05:12:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-07 05:12:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-07 05:12:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:12:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-11-07 05:12:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-11-07 05:12:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-11-07 05:12:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-11-07 05:12:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-11-07 05:12:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-11-07 05:12:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-11-07 05:12:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-11-07 05:12:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-11-07 05:12:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-11-07 05:12:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-11-07 05:12:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:12:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:12:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:12:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:12:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:12:59,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:13:00,726 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:13:00,726 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-11-07 05:13:00,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:13:00 BoogieIcfgContainer [2020-11-07 05:13:00,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:13:00,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:13:00,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:13:00,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:13:00,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:12:58" (1/3) ... [2020-11-07 05:13:00,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e132d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:13:00, skipping insertion in model container [2020-11-07 05:13:00,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:12:59" (2/3) ... [2020-11-07 05:13:00,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e132d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:13:00, skipping insertion in model container [2020-11-07 05:13:00,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:13:00" (3/3) ... [2020-11-07 05:13:00,743 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-11-07 05:13:00,762 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:13:00,767 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:13:00,782 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:13:00,818 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:13:00,819 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:13:00,819 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:13:00,819 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:13:00,819 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:13:00,819 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:13:00,819 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:13:00,820 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:13:00,842 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2020-11-07 05:13:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-11-07 05:13:00,857 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:00,858 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] [2020-11-07 05:13:00,858 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:00,865 INFO L82 PathProgramCache]: Analyzing trace with hash 460633146, now seen corresponding path program 1 times [2020-11-07 05:13:00,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:00,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947091819] [2020-11-07 05:13:00,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-07 05:13:01,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947091819] [2020-11-07 05:13:01,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:13:01,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 05:13:01,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489861096] [2020-11-07 05:13:01,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 05:13:01,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:01,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 05:13:01,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 05:13:01,607 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2020-11-07 05:13:02,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:02,302 INFO L93 Difference]: Finished difference Result 580 states and 782 transitions. [2020-11-07 05:13:02,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 05:13:02,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2020-11-07 05:13:02,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:02,320 INFO L225 Difference]: With dead ends: 580 [2020-11-07 05:13:02,320 INFO L226 Difference]: Without dead ends: 281 [2020-11-07 05:13:02,330 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 [2020-11-07 05:13:02,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-11-07 05:13:02,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2020-11-07 05:13:02,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-07 05:13:02,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 290 transitions. [2020-11-07 05:13:02,448 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 290 transitions. Word has length 91 [2020-11-07 05:13:02,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:02,448 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 290 transitions. [2020-11-07 05:13:02,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 05:13:02,449 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 290 transitions. [2020-11-07 05:13:02,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-07 05:13:02,453 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:02,454 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, 1, 1] [2020-11-07 05:13:02,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:13:02,454 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:02,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:02,455 INFO L82 PathProgramCache]: Analyzing trace with hash -409331855, now seen corresponding path program 1 times [2020-11-07 05:13:02,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:02,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88211056] [2020-11-07 05:13:02,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:02,953 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-11-07 05:13:02,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88211056] [2020-11-07 05:13:02,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:02,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-07 05:13:02,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104150393] [2020-11-07 05:13:02,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 05:13:02,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:02,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 05:13:02,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:13:02,958 INFO L87 Difference]: Start difference. First operand 261 states and 290 transitions. Second operand 13 states. [2020-11-07 05:13:05,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:05,214 INFO L93 Difference]: Finished difference Result 550 states and 629 transitions. [2020-11-07 05:13:05,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:13:05,215 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2020-11-07 05:13:05,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:05,220 INFO L225 Difference]: With dead ends: 550 [2020-11-07 05:13:05,220 INFO L226 Difference]: Without dead ends: 302 [2020-11-07 05:13:05,223 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 [2020-11-07 05:13:05,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-11-07 05:13:05,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 282. [2020-11-07 05:13:05,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-07 05:13:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 313 transitions. [2020-11-07 05:13:05,291 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 313 transitions. Word has length 93 [2020-11-07 05:13:05,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:05,291 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 313 transitions. [2020-11-07 05:13:05,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 05:13:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 313 transitions. [2020-11-07 05:13:05,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-07 05:13:05,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:05,301 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, 1, 1] [2020-11-07 05:13:05,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:13:05,302 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:05,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:05,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1433981389, now seen corresponding path program 1 times [2020-11-07 05:13:05,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:05,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131163009] [2020-11-07 05:13:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:05,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:05,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:05,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:05,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-11-07 05:13:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:06,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:07,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:07,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:07,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:07,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:08,328 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 141 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-11-07 05:13:08,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131163009] [2020-11-07 05:13:08,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:08,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-11-07 05:13:08,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954324684] [2020-11-07 05:13:08,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-11-07 05:13:08,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:08,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-11-07 05:13:08,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1392, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 05:13:08,332 INFO L87 Difference]: Start difference. First operand 282 states and 313 transitions. Second operand 39 states. [2020-11-07 05:13:10,931 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-11-07 05:13:17,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:17,036 INFO L93 Difference]: Finished difference Result 582 states and 663 transitions. [2020-11-07 05:13:17,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-07 05:13:17,041 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 241 [2020-11-07 05:13:17,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:17,046 INFO L225 Difference]: With dead ends: 582 [2020-11-07 05:13:17,046 INFO L226 Difference]: Without dead ends: 317 [2020-11-07 05:13:17,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=327, Invalid=4785, Unknown=0, NotChecked=0, Total=5112 [2020-11-07 05:13:17,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-11-07 05:13:17,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 292. [2020-11-07 05:13:17,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-11-07 05:13:17,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 325 transitions. [2020-11-07 05:13:17,135 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 325 transitions. Word has length 241 [2020-11-07 05:13:17,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:17,136 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 325 transitions. [2020-11-07 05:13:17,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-11-07 05:13:17,136 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 325 transitions. [2020-11-07 05:13:17,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-11-07 05:13:17,147 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:17,148 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, 1, 1] [2020-11-07 05:13:17,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:13:17,148 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:17,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:17,149 INFO L82 PathProgramCache]: Analyzing trace with hash 790601, now seen corresponding path program 1 times [2020-11-07 05:13:17,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:17,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745028082] [2020-11-07 05:13:17,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-07 05:13:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 05:13:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:17,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:18,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:18,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:18,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:18,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:18,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:18,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:18,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-07 05:13:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:18,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:18,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 95 proven. 23 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-11-07 05:13:19,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745028082] [2020-11-07 05:13:19,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:19,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-11-07 05:13:19,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108928307] [2020-11-07 05:13:19,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-07 05:13:19,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:19,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-07 05:13:19,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2020-11-07 05:13:19,297 INFO L87 Difference]: Start difference. First operand 292 states and 325 transitions. Second operand 23 states. [2020-11-07 05:13:20,765 WARN L194 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-11-07 05:13:21,129 WARN L194 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-11-07 05:13:21,530 WARN L194 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-11-07 05:13:21,801 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-11-07 05:13:25,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:25,550 INFO L93 Difference]: Finished difference Result 585 states and 660 transitions. [2020-11-07 05:13:25,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 05:13:25,553 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 245 [2020-11-07 05:13:25,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:25,556 INFO L225 Difference]: With dead ends: 585 [2020-11-07 05:13:25,557 INFO L226 Difference]: Without dead ends: 312 [2020-11-07 05:13:25,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2020-11-07 05:13:25,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-11-07 05:13:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 292. [2020-11-07 05:13:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-11-07 05:13:25,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 323 transitions. [2020-11-07 05:13:25,602 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 323 transitions. Word has length 245 [2020-11-07 05:13:25,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:25,603 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 323 transitions. [2020-11-07 05:13:25,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-07 05:13:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 323 transitions. [2020-11-07 05:13:25,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-11-07 05:13:25,606 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:25,607 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, 1, 1] [2020-11-07 05:13:25,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:13:25,607 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:25,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:25,608 INFO L82 PathProgramCache]: Analyzing trace with hash 820570067, now seen corresponding path program 1 times [2020-11-07 05:13:25,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:25,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159967309] [2020-11-07 05:13:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 05:13:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:27,904 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 38 proven. 38 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2020-11-07 05:13:27,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159967309] [2020-11-07 05:13:27,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:27,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-11-07 05:13:27,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66311053] [2020-11-07 05:13:27,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-11-07 05:13:27,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:27,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-11-07 05:13:27,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2020-11-07 05:13:27,907 INFO L87 Difference]: Start difference. First operand 292 states and 323 transitions. Second operand 32 states. [2020-11-07 05:13:29,513 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-11-07 05:13:29,926 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-07 05:13:30,183 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-11-07 05:13:30,399 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-07 05:13:35,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:35,943 INFO L93 Difference]: Finished difference Result 596 states and 667 transitions. [2020-11-07 05:13:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-07 05:13:35,948 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 243 [2020-11-07 05:13:35,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:35,952 INFO L225 Difference]: With dead ends: 596 [2020-11-07 05:13:35,952 INFO L226 Difference]: Without dead ends: 323 [2020-11-07 05:13:35,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=256, Invalid=2824, Unknown=0, NotChecked=0, Total=3080 [2020-11-07 05:13:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-11-07 05:13:36,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 301. [2020-11-07 05:13:36,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-07 05:13:36,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 333 transitions. [2020-11-07 05:13:36,013 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 333 transitions. Word has length 243 [2020-11-07 05:13:36,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:36,013 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 333 transitions. [2020-11-07 05:13:36,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-11-07 05:13:36,014 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 333 transitions. [2020-11-07 05:13:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-11-07 05:13:36,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:36,017 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] [2020-11-07 05:13:36,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 05:13:36,018 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:36,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:36,019 INFO L82 PathProgramCache]: Analyzing trace with hash 791701158, now seen corresponding path program 1 times [2020-11-07 05:13:36,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:36,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644951006] [2020-11-07 05:13:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:36,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:36,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:36,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:36,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:36,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 05:13:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 05:13:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:37,863 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-11-07 05:13:37,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644951006] [2020-11-07 05:13:37,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:37,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-11-07 05:13:37,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091365543] [2020-11-07 05:13:37,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-07 05:13:37,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:37,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-07 05:13:37,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-11-07 05:13:37,868 INFO L87 Difference]: Start difference. First operand 301 states and 333 transitions. Second operand 24 states. [2020-11-07 05:13:42,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:42,471 INFO L93 Difference]: Finished difference Result 535 states and 600 transitions. [2020-11-07 05:13:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-07 05:13:42,472 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 244 [2020-11-07 05:13:42,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:42,477 INFO L225 Difference]: With dead ends: 535 [2020-11-07 05:13:42,477 INFO L226 Difference]: Without dead ends: 423 [2020-11-07 05:13:42,479 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 [2020-11-07 05:13:42,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-11-07 05:13:42,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 338. [2020-11-07 05:13:42,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-07 05:13:42,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 375 transitions. [2020-11-07 05:13:42,528 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 375 transitions. Word has length 244 [2020-11-07 05:13:42,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:42,529 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 375 transitions. [2020-11-07 05:13:42,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-07 05:13:42,529 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 375 transitions. [2020-11-07 05:13:42,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-11-07 05:13:42,533 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:42,533 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, 1, 1, 1, 1, 1, 1] [2020-11-07 05:13:42,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 05:13:42,534 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:42,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:42,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1801672502, now seen corresponding path program 1 times [2020-11-07 05:13:42,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:42,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840571260] [2020-11-07 05:13:42,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,785 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-07 05:13:43,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 05:13:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 05:13:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 05:13:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:44,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:44,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:44,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:44,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:44,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:44,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:44,450 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 25 proven. 40 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-11-07 05:13:44,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840571260] [2020-11-07 05:13:44,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:44,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-11-07 05:13:44,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192116479] [2020-11-07 05:13:44,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 05:13:44,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:44,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 05:13:44,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-07 05:13:44,456 INFO L87 Difference]: Start difference. First operand 338 states and 375 transitions. Second operand 17 states. [2020-11-07 05:13:44,961 WARN L194 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-07 05:13:45,266 WARN L194 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-11-07 05:13:46,357 WARN L194 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-11-07 05:13:47,001 WARN L194 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-11-07 05:13:47,719 WARN L194 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-11-07 05:13:48,307 WARN L194 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-11-07 05:13:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:51,844 INFO L93 Difference]: Finished difference Result 674 states and 749 transitions. [2020-11-07 05:13:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 05:13:51,845 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 249 [2020-11-07 05:13:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:51,850 INFO L225 Difference]: With dead ends: 674 [2020-11-07 05:13:51,850 INFO L226 Difference]: Without dead ends: 358 [2020-11-07 05:13:51,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2020-11-07 05:13:51,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-11-07 05:13:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 338. [2020-11-07 05:13:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-07 05:13:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 373 transitions. [2020-11-07 05:13:51,891 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 373 transitions. Word has length 249 [2020-11-07 05:13:51,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:51,892 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 373 transitions. [2020-11-07 05:13:51,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 05:13:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 373 transitions. [2020-11-07 05:13:51,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-11-07 05:13:51,896 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:51,896 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, 1, 1] [2020-11-07 05:13:51,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 05:13:51,897 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:51,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:51,897 INFO L82 PathProgramCache]: Analyzing trace with hash 554881775, now seen corresponding path program 1 times [2020-11-07 05:13:51,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:51,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254171579] [2020-11-07 05:13:51,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 05:13:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:54,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:54,680 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-11-07 05:13:54,906 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-07 05:13:55,220 WARN L194 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-11-07 05:13:55,504 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2020-11-07 05:13:55,746 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-07 05:13:55,948 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-11-07 05:13:56,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:56,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 05:13:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:57,656 WARN L194 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-11-07 05:13:57,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:52,170 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 189 DAG size of output: 49