/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:48:03,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:48:03,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:48:03,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:48:03,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:48:03,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:48:03,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:48:03,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:48:03,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:48:03,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:48:03,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:48:03,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:48:03,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:48:03,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:48:03,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:48:03,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:48:03,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:48:03,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:48:03,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:48:03,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:48:03,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:48:03,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:48:03,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:48:03,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:48:03,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:48:03,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:48:03,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:48:03,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:48:03,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:48:03,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:48:03,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:48:03,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:48:03,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:48:03,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:48:03,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:48:03,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:48:03,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:48:03,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:48:03,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:48:03,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:48:03,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:48:03,157 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 00:48:03,181 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:48:03,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:48:03,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:48:03,186 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:48:03,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:48:03,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:48:03,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:48:03,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:48:03,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:48:03,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:48:03,189 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:48:03,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:48:03,190 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:48:03,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:48:03,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:48:03,191 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:48:03,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:48:03,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:48:03,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:48:03,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:48:03,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:48:03,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:48:03,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:48:03,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:48:03,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:48:03,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:48:03,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:48:03,695 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:48:03,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-11-07 00:48:03,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ae635a2/af06f3a43078455fbd953c7f46a8c156/FLAGa67da5099 [2020-11-07 00:48:04,416 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:48:04,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-11-07 00:48:04,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ae635a2/af06f3a43078455fbd953c7f46a8c156/FLAGa67da5099 [2020-11-07 00:48:04,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ae635a2/af06f3a43078455fbd953c7f46a8c156 [2020-11-07 00:48:04,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:48:04,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:48:04,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:48:04,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:48:04,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:48:04,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:48:04" (1/1) ... [2020-11-07 00:48:04,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbf5b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:04, skipping insertion in model container [2020-11-07 00:48:04,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:48:04" (1/1) ... [2020-11-07 00:48:04,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:48:04,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:48:05,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:48:05,160 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:48:05,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:48:05,356 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:48:05,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05 WrapperNode [2020-11-07 00:48:05,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:48:05,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:48:05,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:48:05,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:48:05,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05" (1/1) ... [2020-11-07 00:48:05,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05" (1/1) ... [2020-11-07 00:48:05,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05" (1/1) ... [2020-11-07 00:48:05,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05" (1/1) ... [2020-11-07 00:48:05,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05" (1/1) ... [2020-11-07 00:48:05,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05" (1/1) ... [2020-11-07 00:48:05,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05" (1/1) ... [2020-11-07 00:48:05,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:48:05,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:48:05,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:48:05,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:48:05,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05" (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 00:48:05,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:48:05,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:48:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-07 00:48:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:48:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 00:48:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 00:48:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-11-07 00:48:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-11-07 00:48:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-11-07 00:48:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-11-07 00:48:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-11-07 00:48:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-11-07 00:48:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-11-07 00:48:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-11-07 00:48:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-11-07 00:48:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-11-07 00:48:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-11-07 00:48:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-11-07 00:48:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-11-07 00:48:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-11-07 00:48:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-11-07 00:48:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-11-07 00:48:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:48:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:48:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:48:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 00:48:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 00:48:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:48:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:48:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 00:48:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 00:48:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 00:48:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 00:48:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 00:48:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 00:48:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 00:48:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 00:48:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 00:48:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 00:48:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 00:48:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 00:48:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 00:48:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 00:48:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 00:48:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 00:48:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 00:48:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 00:48:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 00:48:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 00:48:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 00:48:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 00:48:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 00:48:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 00:48:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 00:48:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 00:48:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 00:48:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 00:48:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 00:48:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 00:48:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 00:48:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 00:48:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 00:48:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 00:48:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 00:48:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 00:48:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 00:48:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 00:48:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 00:48:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 00:48:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 00:48:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 00:48:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 00:48:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 00:48:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 00:48:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 00:48:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 00:48:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 00:48:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 00:48:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 00:48:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 00:48:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 00:48:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:48:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 00:48:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 00:48:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:48:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 00:48:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 00:48:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 00:48:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 00:48:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-07 00:48:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 00:48:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-07 00:48:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 00:48:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 00:48:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-07 00:48:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 00:48:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 00:48:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 00:48:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 00:48:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 00:48:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 00:48:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 00:48:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 00:48:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 00:48:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 00:48:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 00:48:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 00:48:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 00:48:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 00:48:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 00:48:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 00:48:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 00:48:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 00:48:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 00:48:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 00:48:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 00:48:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 00:48:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 00:48:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 00:48:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 00:48:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 00:48:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 00:48:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 00:48:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 00:48:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 00:48:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 00:48:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 00:48:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 00:48:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 00:48:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 00:48:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 00:48:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 00:48:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 00:48:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:48:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-11-07 00:48:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-11-07 00:48:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:48:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:48:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-11-07 00:48:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-11-07 00:48:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:48:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-11-07 00:48:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-07 00:48:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-07 00:48:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:48:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-11-07 00:48:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-11-07 00:48:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-11-07 00:48:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-11-07 00:48:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-11-07 00:48:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-11-07 00:48:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-11-07 00:48:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-11-07 00:48:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-11-07 00:48:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-11-07 00:48:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-11-07 00:48:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:48:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:48:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:48:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:48:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:48:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:48:06,621 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:48:06,621 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-11-07 00:48:06,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:48:06 BoogieIcfgContainer [2020-11-07 00:48:06,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:48:06,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:48:06,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:48:06,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:48:06,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:48:04" (1/3) ... [2020-11-07 00:48:06,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6066d9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:48:06, skipping insertion in model container [2020-11-07 00:48:06,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:48:05" (2/3) ... [2020-11-07 00:48:06,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6066d9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:48:06, skipping insertion in model container [2020-11-07 00:48:06,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:48:06" (3/3) ... [2020-11-07 00:48:06,633 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-11-07 00:48:06,649 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:48:06,653 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:48:06,666 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:48:06,690 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:48:06,691 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:48:06,691 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:48:06,691 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:48:06,691 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:48:06,691 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:48:06,691 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:48:06,692 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:48:06,714 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2020-11-07 00:48:06,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-11-07 00:48:06,729 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:06,730 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 00:48:06,730 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:06,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:06,737 INFO L82 PathProgramCache]: Analyzing trace with hash 460633146, now seen corresponding path program 1 times [2020-11-07 00:48:06,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:06,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298126618] [2020-11-07 00:48:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:06,837 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:07,436 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 00:48:07,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298126618] [2020-11-07 00:48:07,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:07,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:48:07,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909246266] [2020-11-07 00:48:07,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:48:07,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:07,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:48:07,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:48:07,470 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2020-11-07 00:48:08,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:08,174 INFO L93 Difference]: Finished difference Result 580 states and 782 transitions. [2020-11-07 00:48:08,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:48:08,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2020-11-07 00:48:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:08,190 INFO L225 Difference]: With dead ends: 580 [2020-11-07 00:48:08,190 INFO L226 Difference]: Without dead ends: 281 [2020-11-07 00:48:08,198 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 00:48:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-11-07 00:48:08,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2020-11-07 00:48:08,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-07 00:48:08,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 290 transitions. [2020-11-07 00:48:08,291 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 290 transitions. Word has length 91 [2020-11-07 00:48:08,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:08,292 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 290 transitions. [2020-11-07 00:48:08,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:48:08,292 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 290 transitions. [2020-11-07 00:48:08,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-07 00:48:08,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:08,297 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 00:48:08,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:48:08,297 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:08,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:08,298 INFO L82 PathProgramCache]: Analyzing trace with hash -409331855, now seen corresponding path program 1 times [2020-11-07 00:48:08,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:08,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101656744] [2020-11-07 00:48:08,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:08,308 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:08,859 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 00:48:08,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101656744] [2020-11-07 00:48:08,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:08,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 00:48:08,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696572449] [2020-11-07 00:48:08,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 00:48:08,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:08,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 00:48:08,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-11-07 00:48:08,863 INFO L87 Difference]: Start difference. First operand 261 states and 290 transitions. Second operand 13 states. [2020-11-07 00:48:11,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:11,081 INFO L93 Difference]: Finished difference Result 550 states and 629 transitions. [2020-11-07 00:48:11,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:48:11,081 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2020-11-07 00:48:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:11,091 INFO L225 Difference]: With dead ends: 550 [2020-11-07 00:48:11,092 INFO L226 Difference]: Without dead ends: 302 [2020-11-07 00:48:11,094 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 00:48:11,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-11-07 00:48:11,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 282. [2020-11-07 00:48:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-07 00:48:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 313 transitions. [2020-11-07 00:48:11,170 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 313 transitions. Word has length 93 [2020-11-07 00:48:11,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:11,172 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 313 transitions. [2020-11-07 00:48:11,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 00:48:11,172 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 313 transitions. [2020-11-07 00:48:11,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-07 00:48:11,188 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:11,189 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 00:48:11,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:48:11,189 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:11,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:11,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1433981389, now seen corresponding path program 1 times [2020-11-07 00:48:11,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:11,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161823933] [2020-11-07 00:48:11,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:11,200 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:11,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:11,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:11,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:11,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-11-07 00:48:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:12,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:13,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:13,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:13,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 38 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-07 00:48:14,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161823933] [2020-11-07 00:48:14,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:14,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2020-11-07 00:48:14,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668533920] [2020-11-07 00:48:14,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-11-07 00:48:14,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:14,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-11-07 00:48:14,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1392, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 00:48:14,147 INFO L87 Difference]: Start difference. First operand 282 states and 313 transitions. Second operand 39 states. [2020-11-07 00:48:16,694 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-11-07 00:48:22,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:22,637 INFO L93 Difference]: Finished difference Result 582 states and 663 transitions. [2020-11-07 00:48:22,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-07 00:48:22,640 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 241 [2020-11-07 00:48:22,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:22,646 INFO L225 Difference]: With dead ends: 582 [2020-11-07 00:48:22,646 INFO L226 Difference]: Without dead ends: 317 [2020-11-07 00:48:22,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=327, Invalid=4785, Unknown=0, NotChecked=0, Total=5112 [2020-11-07 00:48:22,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-11-07 00:48:22,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 292. [2020-11-07 00:48:22,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-11-07 00:48:22,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 325 transitions. [2020-11-07 00:48:22,716 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 325 transitions. Word has length 241 [2020-11-07 00:48:22,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:22,719 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 325 transitions. [2020-11-07 00:48:22,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-11-07 00:48:22,719 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 325 transitions. [2020-11-07 00:48:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-11-07 00:48:22,723 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:22,723 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 00:48:22,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:48:22,724 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:22,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:22,724 INFO L82 PathProgramCache]: Analyzing trace with hash 820570067, now seen corresponding path program 1 times [2020-11-07 00:48:22,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:22,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100980078] [2020-11-07 00:48:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:22,732 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:22,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:22,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:48:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:23,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:24,939 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-11-07 00:48:24,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100980078] [2020-11-07 00:48:24,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:24,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2020-11-07 00:48:24,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984613437] [2020-11-07 00:48:24,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-11-07 00:48:24,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:24,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-11-07 00:48:24,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2020-11-07 00:48:24,943 INFO L87 Difference]: Start difference. First operand 292 states and 325 transitions. Second operand 32 states. [2020-11-07 00:48:26,524 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-11-07 00:48:26,939 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-07 00:48:27,170 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-11-07 00:48:27,374 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-07 00:48:32,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:32,797 INFO L93 Difference]: Finished difference Result 596 states and 671 transitions. [2020-11-07 00:48:32,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-07 00:48:32,798 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 243 [2020-11-07 00:48:32,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:32,803 INFO L225 Difference]: With dead ends: 596 [2020-11-07 00:48:32,804 INFO L226 Difference]: Without dead ends: 323 [2020-11-07 00:48:32,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=256, Invalid=2824, Unknown=0, NotChecked=0, Total=3080 [2020-11-07 00:48:32,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-11-07 00:48:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 301. [2020-11-07 00:48:32,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-07 00:48:32,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 335 transitions. [2020-11-07 00:48:32,847 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 335 transitions. Word has length 243 [2020-11-07 00:48:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:32,848 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 335 transitions. [2020-11-07 00:48:32,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-11-07 00:48:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 335 transitions. [2020-11-07 00:48:32,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-11-07 00:48:32,852 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:32,852 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] [2020-11-07 00:48:32,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:48:32,852 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:32,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:32,853 INFO L82 PathProgramCache]: Analyzing trace with hash -863754643, now seen corresponding path program 1 times [2020-11-07 00:48:32,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:32,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447492538] [2020-11-07 00:48:32,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:32,859 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:33,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:33,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:33,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:33,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:33,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:33,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,405 WARN L194 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-07 00:48:34,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:48:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 00:48:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:48:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:34,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-11-07 00:48:35,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447492538] [2020-11-07 00:48:35,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:35,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-07 00:48:35,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695328271] [2020-11-07 00:48:35,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-07 00:48:35,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:35,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-07 00:48:35,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2020-11-07 00:48:35,147 INFO L87 Difference]: Start difference. First operand 301 states and 335 transitions. Second operand 23 states. [2020-11-07 00:48:35,648 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-07 00:48:36,157 WARN L194 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-11-07 00:48:37,403 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-11-07 00:48:38,120 WARN L194 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-11-07 00:48:38,942 WARN L194 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-11-07 00:48:39,534 WARN L194 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-11-07 00:48:43,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:43,944 INFO L93 Difference]: Finished difference Result 600 states and 669 transitions. [2020-11-07 00:48:43,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 00:48:43,948 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 245 [2020-11-07 00:48:43,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:43,952 INFO L225 Difference]: With dead ends: 600 [2020-11-07 00:48:43,952 INFO L226 Difference]: Without dead ends: 321 [2020-11-07 00:48:43,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2020-11-07 00:48:43,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-07 00:48:44,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 301. [2020-11-07 00:48:44,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-07 00:48:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 333 transitions. [2020-11-07 00:48:44,009 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 333 transitions. Word has length 245 [2020-11-07 00:48:44,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:44,010 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 333 transitions. [2020-11-07 00:48:44,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-07 00:48:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 333 transitions. [2020-11-07 00:48:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-11-07 00:48:44,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:44,015 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 00:48:44,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:48:44,016 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:44,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:44,016 INFO L82 PathProgramCache]: Analyzing trace with hash 791701158, now seen corresponding path program 1 times [2020-11-07 00:48:44,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:44,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020651845] [2020-11-07 00:48:44,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:44,022 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:48:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:48:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-11-07 00:48:45,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020651845] [2020-11-07 00:48:45,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:45,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-11-07 00:48:45,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961303189] [2020-11-07 00:48:45,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-07 00:48:45,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:45,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-07 00:48:45,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-11-07 00:48:45,516 INFO L87 Difference]: Start difference. First operand 301 states and 333 transitions. Second operand 24 states. [2020-11-07 00:48:50,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:50,713 INFO L93 Difference]: Finished difference Result 535 states and 600 transitions. [2020-11-07 00:48:50,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-07 00:48:50,713 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 244 [2020-11-07 00:48:50,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:50,717 INFO L225 Difference]: With dead ends: 535 [2020-11-07 00:48:50,718 INFO L226 Difference]: Without dead ends: 423 [2020-11-07 00:48:50,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2020-11-07 00:48:50,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-11-07 00:48:50,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 338. [2020-11-07 00:48:50,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-07 00:48:50,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 375 transitions. [2020-11-07 00:48:50,771 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 375 transitions. Word has length 244 [2020-11-07 00:48:50,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:50,772 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 375 transitions. [2020-11-07 00:48:50,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-07 00:48:50,772 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 375 transitions. [2020-11-07 00:48:50,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-11-07 00:48:50,776 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:50,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:50,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:48:50,777 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:50,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:50,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1636205355, now seen corresponding path program 1 times [2020-11-07 00:48:50,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:50,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298939605] [2020-11-07 00:48:50,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:50,782 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:50,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:50,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-07 00:48:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 00:48:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:48:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:52,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-07 00:48:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:52,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:52,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 61 proven. 21 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-11-07 00:48:52,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298939605] [2020-11-07 00:48:52,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:52,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-11-07 00:48:52,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690329346] [2020-11-07 00:48:52,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 00:48:52,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:52,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 00:48:52,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:48:52,369 INFO L87 Difference]: Start difference. First operand 338 states and 375 transitions. Second operand 17 states. [2020-11-07 00:48:53,596 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-11-07 00:48:53,897 WARN L194 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-11-07 00:48:54,246 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-11-07 00:48:54,520 WARN L194 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-11-07 00:48:57,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:57,625 INFO L93 Difference]: Finished difference Result 676 states and 760 transitions. [2020-11-07 00:48:57,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 00:48:57,626 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 250 [2020-11-07 00:48:57,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:57,632 INFO L225 Difference]: With dead ends: 676 [2020-11-07 00:48:57,632 INFO L226 Difference]: Without dead ends: 358 [2020-11-07 00:48:57,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2020-11-07 00:48:57,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-11-07 00:48:57,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 338. [2020-11-07 00:48:57,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-07 00:48:57,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 373 transitions. [2020-11-07 00:48:57,713 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 373 transitions. Word has length 250 [2020-11-07 00:48:57,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:57,714 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 373 transitions. [2020-11-07 00:48:57,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 00:48:57,714 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 373 transitions. [2020-11-07 00:48:57,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-11-07 00:48:57,716 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:57,716 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 00:48:57,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 00:48:57,717 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:57,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:57,717 INFO L82 PathProgramCache]: Analyzing trace with hash 554881775, now seen corresponding path program 1 times [2020-11-07 00:48:57,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:57,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650131127] [2020-11-07 00:48:57,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:57,724 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:58,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:58,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:58,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:59,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:59,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:59,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:00,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:49:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:00,798 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 23 [2020-11-07 00:49:01,310 WARN L194 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 25 [2020-11-07 00:49:03,308 WARN L194 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 19 [2020-11-07 00:49:04,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:49:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:04,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:49:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:04,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:49:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:04,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:49:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:04,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:49:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:04,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:49:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:05,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:49:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:05,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:49:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:06,011 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2020-11-07 00:49:06,304 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-11-07 00:49:06,577 WARN L194 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-07 00:49:06,852 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-11-07 00:49:07,196 WARN L194 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-11-07 00:49:07,463 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-07 00:49:07,798 WARN L194 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-11-07 00:49:08,051 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-11-07 00:49:08,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:49:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:08,984 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2020-11-07 00:49:08,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:49:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:14,667 WARN L194 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 151 DAG size of output: 138 [2020-11-07 00:49:14,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:49:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:51:06,920 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 218 DAG size of output: 47