/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:22:57,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:22:57,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:22:57,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:22:57,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:22:57,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:22:57,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:22:57,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:22:57,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:22:57,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:22:57,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:22:57,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:22:57,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:22:58,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:22:58,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:22:58,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:22:58,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:22:58,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:22:58,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:22:58,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:22:58,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:22:58,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:22:58,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:22:58,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:22:58,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 13:22:58,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 13:22:58,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 13:22:58,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 13:22:58,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 13:22:58,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 13:22:58,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:22:58,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:22:58,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:22:58,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:22:58,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:22:58,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:22:58,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:22:58,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:22:58,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:22:58,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:22:58,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:22:58,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:22:58,074 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:22:58,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:22:58,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:22:58,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:22:58,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:22:58,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:22:58,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:22:58,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:22:58,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:22:58,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:22:58,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:22:58,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:22:58,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:22:58,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:22:58,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:22:58,084 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:22:58,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:22:58,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:22:58,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:22:58,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:22:58,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:22:58,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:22:58,087 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:22:58,372 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:22:58,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:22:58,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:22:58,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:22:58,398 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:22:58,399 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-07-07 13:22:58,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8510f88a6/2a9a14bbe9bb45c6bde1a89f286e1347/FLAGf3c49ff21 [2020-07-07 13:22:59,073 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:22:59,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-07-07 13:22:59,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8510f88a6/2a9a14bbe9bb45c6bde1a89f286e1347/FLAGf3c49ff21 [2020-07-07 13:22:59,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8510f88a6/2a9a14bbe9bb45c6bde1a89f286e1347 [2020-07-07 13:22:59,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:22:59,372 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:22:59,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:22:59,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:22:59,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:22:59,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:22:59" (1/1) ... [2020-07-07 13:22:59,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566fade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:22:59, skipping insertion in model container [2020-07-07 13:22:59,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:22:59" (1/1) ... [2020-07-07 13:22:59,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:22:59,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:22:59,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:22:59,968 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:23:00,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:23:00,110 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:23:00,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00 WrapperNode [2020-07-07 13:23:00,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:23:00,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:23:00,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:23:00,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:23:00,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00" (1/1) ... [2020-07-07 13:23:00,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00" (1/1) ... [2020-07-07 13:23:00,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00" (1/1) ... [2020-07-07 13:23:00,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00" (1/1) ... [2020-07-07 13:23:00,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00" (1/1) ... [2020-07-07 13:23:00,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00" (1/1) ... [2020-07-07 13:23:00,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00" (1/1) ... [2020-07-07 13:23:00,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:23:00,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:23:00,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:23:00,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:23:00,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00" (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 [2020-07-07 13:23:00,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:23:00,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:23:00,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-07-07 13:23:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-07 13:23:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-07 13:23:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-07-07 13:23:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-07-07 13:23:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-07-07 13:23:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-07-07 13:23:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-07-07 13:23:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-07-07 13:23:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-07-07 13:23:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-07-07 13:23:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-07-07 13:23:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-07-07 13:23:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-07-07 13:23:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-07-07 13:23:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-07-07 13:23:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-07-07 13:23:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-07-07 13:23:00,292 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-07-07 13:23:00,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:23:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:23:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-07 13:23:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-07 13:23:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-07 13:23:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-07 13:23:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-07 13:23:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-07 13:23:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-07 13:23:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-07 13:23:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-07 13:23:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-07 13:23:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-07 13:23:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-07 13:23:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-07 13:23:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-07 13:23:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-07 13:23:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-07 13:23:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-07 13:23:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-07 13:23:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-07 13:23:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-07 13:23:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-07 13:23:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-07 13:23:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-07 13:23:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-07 13:23:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-07 13:23:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-07 13:23:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-07 13:23:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-07 13:23:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-07 13:23:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-07 13:23:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-07 13:23:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-07 13:23:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-07 13:23:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-07 13:23:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-07 13:23:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-07 13:23:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-07 13:23:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-07 13:23:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-07 13:23:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-07 13:23:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-07 13:23:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-07 13:23:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-07 13:23:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-07 13:23:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-07 13:23:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-07 13:23:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-07 13:23:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-07 13:23:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-07 13:23:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-07 13:23:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-07 13:23:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-07 13:23:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 13:23:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-07 13:23:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-07 13:23:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 13:23:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-07 13:23:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-07 13:23:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-07 13:23:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-07 13:23:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-07 13:23:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 13:23:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-07 13:23:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-07 13:23:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-07 13:23:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 13:23:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-07 13:23:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-07 13:23:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-07 13:23:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-07 13:23:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-07 13:23:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-07 13:23:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-07 13:23:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-07 13:23:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-07 13:23:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-07 13:23:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-07 13:23:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-07 13:23:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-07 13:23:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-07 13:23:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-07 13:23:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-07 13:23:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-07 13:23:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-07 13:23:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-07 13:23:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-07 13:23:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-07 13:23:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-07 13:23:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-07 13:23:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-07 13:23:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-07 13:23:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-07 13:23:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-07 13:23:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-07 13:23:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-07 13:23:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-07 13:23:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-07 13:23:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-07 13:23:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-07 13:23:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-07 13:23:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-07 13:23:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-07 13:23:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-07 13:23:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-07 13:23:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-07 13:23:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:23:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-07-07 13:23:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-07-07 13:23:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 13:23:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 13:23:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-07-07 13:23:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-07-07 13:23:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 13:23:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-07-07 13:23:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:23:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-07-07 13:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-07 13:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-07-07 13:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-07-07 13:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-07-07 13:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-07-07 13:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-07-07 13:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-07-07 13:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-07-07 13:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-07-07 13:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-07-07 13:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-07-07 13:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-07-07 13:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:23:01,316 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:23:01,317 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-07-07 13:23:01,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:23:01 BoogieIcfgContainer [2020-07-07 13:23:01,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:23:01,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:23:01,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:23:01,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:23:01,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:22:59" (1/3) ... [2020-07-07 13:23:01,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afbc6cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:23:01, skipping insertion in model container [2020-07-07 13:23:01,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:00" (2/3) ... [2020-07-07 13:23:01,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afbc6cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:23:01, skipping insertion in model container [2020-07-07 13:23:01,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:23:01" (3/3) ... [2020-07-07 13:23:01,333 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-07-07 13:23:01,345 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:23:01,355 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:23:01,371 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:23:01,397 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:23:01,397 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:23:01,397 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:23:01,397 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:23:01,398 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:23:01,398 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:23:01,398 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:23:01,398 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:23:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-07-07 13:23:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-07-07 13:23:01,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:01,440 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] [2020-07-07 13:23:01,440 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:01,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:01,447 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-07-07 13:23:01,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:01,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144684198] [2020-07-07 13:23:01,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:02,175 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-07 13:23:02,176 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:23:02,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144684198] [2020-07-07 13:23:02,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:23:02,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:23:02,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115036564] [2020-07-07 13:23:02,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:23:02,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:23:02,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:23:02,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:23:02,211 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-07-07 13:23:02,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:23:02,904 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-07-07 13:23:02,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 13:23:02,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-07-07 13:23:02,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:23:02,922 INFO L225 Difference]: With dead ends: 568 [2020-07-07 13:23:02,923 INFO L226 Difference]: Without dead ends: 275 [2020-07-07 13:23:02,933 INFO L675 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 [2020-07-07 13:23:02,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-07-07 13:23:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-07-07 13:23:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-07-07 13:23:03,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-07-07 13:23:03,019 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-07-07 13:23:03,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:23:03,020 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-07-07 13:23:03,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:23:03,020 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-07-07 13:23:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-07 13:23:03,025 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:03,025 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] [2020-07-07 13:23:03,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:23:03,026 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:03,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:03,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-07-07 13:23:03,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:03,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125355670] [2020-07-07 13:23:03,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-07 13:23:03,650 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:23:03,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125355670] [2020-07-07 13:23:03,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:23:03,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-07 13:23:03,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725915119] [2020-07-07 13:23:03,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 13:23:03,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:23:03,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 13:23:03,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-07-07 13:23:03,656 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 13 states. [2020-07-07 13:23:05,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:23:05,525 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-07-07 13:23:05,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 13:23:05,526 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 87 [2020-07-07 13:23:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:23:05,537 INFO L225 Difference]: With dead ends: 542 [2020-07-07 13:23:05,537 INFO L226 Difference]: Without dead ends: 296 [2020-07-07 13:23:05,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-07-07 13:23:05,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-07-07 13:23:05,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-07-07 13:23:05,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-07-07 13:23:05,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-07-07 13:23:05,585 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-07-07 13:23:05,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:23:05,586 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-07-07 13:23:05,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 13:23:05,586 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-07-07 13:23:05,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-07 13:23:05,589 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:05,589 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] [2020-07-07 13:23:05,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:23:05,590 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:05,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:05,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-07-07 13:23:05,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:05,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173627104] [2020-07-07 13:23:05,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 38 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-07 13:23:08,622 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:23:08,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173627104] [2020-07-07 13:23:08,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:23:08,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2020-07-07 13:23:08,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604485673] [2020-07-07 13:23:08,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-07-07 13:23:08,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:23:08,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-07-07 13:23:08,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1540, Unknown=0, NotChecked=0, Total=1640 [2020-07-07 13:23:08,627 INFO L87 Difference]: Start difference. First operand 276 states and 307 transitions. Second operand 41 states. [2020-07-07 13:23:15,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:23:15,995 INFO L93 Difference]: Finished difference Result 574 states and 655 transitions. [2020-07-07 13:23:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-07-07 13:23:15,996 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 235 [2020-07-07 13:23:15,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:23:16,002 INFO L225 Difference]: With dead ends: 574 [2020-07-07 13:23:16,002 INFO L226 Difference]: Without dead ends: 311 [2020-07-07 13:23:16,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=341, Invalid=5061, Unknown=0, NotChecked=0, Total=5402 [2020-07-07 13:23:16,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-07-07 13:23:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 286. [2020-07-07 13:23:16,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-07-07 13:23:16,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 319 transitions. [2020-07-07 13:23:16,070 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 319 transitions. Word has length 235 [2020-07-07 13:23:16,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:23:16,071 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 319 transitions. [2020-07-07 13:23:16,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-07-07 13:23:16,071 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 319 transitions. [2020-07-07 13:23:16,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-07-07 13:23:16,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:16,075 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] [2020-07-07 13:23:16,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:23:16,075 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:16,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:16,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1561006854, now seen corresponding path program 1 times [2020-07-07 13:23:16,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:16,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10337246] [2020-07-07 13:23:16,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-07-07 13:23:18,499 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:23:18,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10337246] [2020-07-07 13:23:18,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:23:18,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-07-07 13:23:18,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698013480] [2020-07-07 13:23:18,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-07-07 13:23:18,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:23:18,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-07-07 13:23:18,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1038, Unknown=0, NotChecked=0, Total=1122 [2020-07-07 13:23:18,506 INFO L87 Difference]: Start difference. First operand 286 states and 319 transitions. Second operand 34 states. [2020-07-07 13:23:25,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:23:25,136 INFO L93 Difference]: Finished difference Result 588 states and 663 transitions. [2020-07-07 13:23:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-07 13:23:25,140 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 237 [2020-07-07 13:23:25,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:23:25,145 INFO L225 Difference]: With dead ends: 588 [2020-07-07 13:23:25,145 INFO L226 Difference]: Without dead ends: 317 [2020-07-07 13:23:25,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=270, Invalid=3036, Unknown=0, NotChecked=0, Total=3306 [2020-07-07 13:23:25,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-07 13:23:25,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 295. [2020-07-07 13:23:25,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-07-07 13:23:25,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 329 transitions. [2020-07-07 13:23:25,182 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 329 transitions. Word has length 237 [2020-07-07 13:23:25,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:23:25,183 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 329 transitions. [2020-07-07 13:23:25,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-07-07 13:23:25,183 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 329 transitions. [2020-07-07 13:23:25,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-07 13:23:25,188 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:25,188 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] [2020-07-07 13:23:25,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:23:25,189 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:25,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:25,190 INFO L82 PathProgramCache]: Analyzing trace with hash -978473208, now seen corresponding path program 1 times [2020-07-07 13:23:25,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:25,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004999049] [2020-07-07 13:23:25,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:26,901 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-07-07 13:23:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:27,934 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-07-07 13:23:27,935 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:23:27,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004999049] [2020-07-07 13:23:27,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:23:27,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-07-07 13:23:27,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393187410] [2020-07-07 13:23:27,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-07 13:23:27,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:23:27,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-07 13:23:27,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2020-07-07 13:23:27,941 INFO L87 Difference]: Start difference. First operand 295 states and 329 transitions. Second operand 25 states. [2020-07-07 13:23:28,586 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-07 13:23:29,071 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-07-07 13:23:30,216 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-07-07 13:23:30,943 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-07-07 13:23:31,557 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-07-07 13:23:32,091 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-07-07 13:23:35,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:23:35,687 INFO L93 Difference]: Finished difference Result 592 states and 661 transitions. [2020-07-07 13:23:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 13:23:35,689 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 239 [2020-07-07 13:23:35,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:23:35,694 INFO L225 Difference]: With dead ends: 592 [2020-07-07 13:23:35,695 INFO L226 Difference]: Without dead ends: 315 [2020-07-07 13:23:35,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 13:23:35,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-07-07 13:23:35,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 295. [2020-07-07 13:23:35,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-07-07 13:23:35,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 327 transitions. [2020-07-07 13:23:35,743 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 327 transitions. Word has length 239 [2020-07-07 13:23:35,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:23:35,745 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 327 transitions. [2020-07-07 13:23:35,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-07 13:23:35,745 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 327 transitions. [2020-07-07 13:23:35,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-07 13:23:35,757 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:35,757 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] [2020-07-07 13:23:35,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:23:35,758 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:35,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:35,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1460243349, now seen corresponding path program 1 times [2020-07-07 13:23:35,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:35,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893182264] [2020-07-07 13:23:35,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:37,948 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 61 proven. 21 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-07-07 13:23:37,948 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:23:37,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893182264] [2020-07-07 13:23:37,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:23:37,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-07-07 13:23:37,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453890733] [2020-07-07 13:23:37,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-07 13:23:37,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:23:37,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-07 13:23:37,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2020-07-07 13:23:37,951 INFO L87 Difference]: Start difference. First operand 295 states and 327 transitions. Second operand 25 states. [2020-07-07 13:23:39,180 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-07-07 13:23:39,530 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-07-07 13:23:39,869 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-07-07 13:23:40,164 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-07-07 13:23:43,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:23:43,509 INFO L93 Difference]: Finished difference Result 594 states and 668 transitions. [2020-07-07 13:23:43,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 13:23:43,510 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 240 [2020-07-07 13:23:43,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:23:43,514 INFO L225 Difference]: With dead ends: 594 [2020-07-07 13:23:43,514 INFO L226 Difference]: Without dead ends: 315 [2020-07-07 13:23:43,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 13:23:43,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-07-07 13:23:43,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 295. [2020-07-07 13:23:43,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-07-07 13:23:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 325 transitions. [2020-07-07 13:23:43,550 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 325 transitions. Word has length 240 [2020-07-07 13:23:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:23:43,551 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 325 transitions. [2020-07-07 13:23:43,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-07 13:23:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 325 transitions. [2020-07-07 13:23:43,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-07-07 13:23:43,554 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:43,555 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] [2020-07-07 13:23:43,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 13:23:43,555 INFO L427 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:43,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1063198871, now seen corresponding path program 1 times [2020-07-07 13:23:43,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:43,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509930683] [2020-07-07 13:23:43,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:45,246 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-07-07 13:23:45,247 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:23:45,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509930683] [2020-07-07 13:23:45,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:23:45,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-07-07 13:23:45,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193479788] [2020-07-07 13:23:45,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-07 13:23:45,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:23:45,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-07 13:23:45,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-07-07 13:23:45,252 INFO L87 Difference]: Start difference. First operand 295 states and 325 transitions. Second operand 24 states. [2020-07-07 13:23:49,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:23:49,321 INFO L93 Difference]: Finished difference Result 527 states and 590 transitions. [2020-07-07 13:23:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-07 13:23:49,322 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 238 [2020-07-07 13:23:49,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:23:49,326 INFO L225 Difference]: With dead ends: 527 [2020-07-07 13:23:49,326 INFO L226 Difference]: Without dead ends: 417 [2020-07-07 13:23:49,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2020-07-07 13:23:49,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-07-07 13:23:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 332. [2020-07-07 13:23:49,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-07-07 13:23:49,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 367 transitions. [2020-07-07 13:23:49,364 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 367 transitions. Word has length 238 [2020-07-07 13:23:49,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:23:49,364 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 367 transitions. [2020-07-07 13:23:49,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-07 13:23:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 367 transitions. [2020-07-07 13:23:49,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-07-07 13:23:49,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:49,368 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] [2020-07-07 13:23:49,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 13:23:49,369 INFO L427 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:49,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:49,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1682472288, now seen corresponding path program 1 times [2020-07-07 13:23:49,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:49,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949159206] [2020-07-07 13:23:49,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:52,092 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-07-07 13:23:52,379 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2020-07-07 13:23:52,682 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-07-07 13:23:52,882 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2020-07-07 13:23:53,111 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-07-07 13:23:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:54,187 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-07-07 13:23:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:55,758 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-07 13:23:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:24:56,724 WARN L193 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 413 DAG size of output: 48 [2020-07-07 13:30:44,877 WARN L193 SmtUtils]: Spent 5.48 m on a formula simplification. DAG size of input: 7131 DAG size of output: 36