/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/list-ext3-properties/dll_nullified-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:57:26,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:57:26,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:57:26,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:57:26,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:57:26,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:57:26,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:57:26,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:57:26,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:57:26,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:57:26,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:57:26,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:57:26,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:57:26,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:57:26,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:57:26,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:57:26,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:57:26,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:57:26,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:57:26,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:57:26,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:57:26,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:57:26,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:57:26,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:57:26,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:57:26,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:57:26,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:57:26,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:57:26,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:57:26,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:57:26,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:57:26,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:57:26,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:57:26,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:57:26,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:57:26,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:57:26,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:57:26,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:57:26,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:57:26,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:57:26,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:57:26,861 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 00:57:26,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:57:26,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:57:26,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:57:26,891 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:57:26,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:57:26,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:57:26,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:57:26,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:57:26,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:57:26,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:57:26,893 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:57:26,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:57:26,894 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:57:26,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:57:26,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:57:26,894 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:57:26,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:57:26,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:57:26,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:57:26,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:57:26,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:57:26,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:57:26,896 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:57:27,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:57:27,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:57:27,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:57:27,402 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:57:27,403 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:57:27,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i [2020-11-07 00:57:27,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/851f83d0e/a71fdcf32bcf4762baf9111937ceeeec/FLAGee3e0024c [2020-11-07 00:57:28,206 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:57:28,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i [2020-11-07 00:57:28,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/851f83d0e/a71fdcf32bcf4762baf9111937ceeeec/FLAGee3e0024c [2020-11-07 00:57:28,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/851f83d0e/a71fdcf32bcf4762baf9111937ceeeec [2020-11-07 00:57:28,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:57:28,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:57:28,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:57:28,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:57:28,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:57:28,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:28" (1/1) ... [2020-11-07 00:57:28,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a348efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:28, skipping insertion in model container [2020-11-07 00:57:28,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:28" (1/1) ... [2020-11-07 00:57:28,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:57:28,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:57:28,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:57:28,876 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:57:28,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:57:29,003 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:57:29,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29 WrapperNode [2020-11-07 00:57:29,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:57:29,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:57:29,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:57:29,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:57:29,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29" (1/1) ... [2020-11-07 00:57:29,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29" (1/1) ... [2020-11-07 00:57:29,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29" (1/1) ... [2020-11-07 00:57:29,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29" (1/1) ... [2020-11-07 00:57:29,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29" (1/1) ... [2020-11-07 00:57:29,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29" (1/1) ... [2020-11-07 00:57:29,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29" (1/1) ... [2020-11-07 00:57:29,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:57:29,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:57:29,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:57:29,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:57:29,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:57:29,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:57:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:57:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:57:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 00:57:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 00:57:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-11-07 00:57:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-11-07 00:57:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:57:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:57:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:57:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 00:57:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 00:57:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:57:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:57:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:57:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 00:57:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 00:57:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 00:57:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 00:57:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 00:57:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 00:57:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 00:57:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 00:57:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 00:57:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 00:57:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 00:57:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 00:57:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 00:57:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 00:57:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 00:57:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 00:57:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 00:57:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 00:57:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 00:57:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 00:57:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 00:57:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 00:57:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 00:57:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 00:57:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 00:57:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 00:57:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 00:57:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 00:57:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 00:57:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 00:57:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 00:57:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 00:57:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 00:57:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 00:57:29,196 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 00:57:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 00:57:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 00:57:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 00:57:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 00:57:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 00:57:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 00:57:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 00:57:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 00:57:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 00:57:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 00:57:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 00:57:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 00:57:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 00:57:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 00:57:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 00:57:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 00:57:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 00:57:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:57:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 00:57:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 00:57:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:57:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 00:57:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 00:57:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 00:57:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 00:57:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-07 00:57:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 00:57:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-07 00:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 00:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 00:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-07 00:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 00:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 00:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 00:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 00:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 00:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 00:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 00:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 00:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 00:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 00:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 00:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 00:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 00:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 00:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 00:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 00:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 00:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 00:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 00:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 00:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 00:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 00:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 00:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 00:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 00:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 00:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 00:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 00:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 00:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-11-07 00:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-11-07 00:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:57:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:57:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:57:29,661 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-11-07 00:57:29,888 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:57:29,888 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-07 00:57:29,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:29 BoogieIcfgContainer [2020-11-07 00:57:29,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:57:29,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:57:29,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:57:29,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:57:29,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:57:28" (1/3) ... [2020-11-07 00:57:29,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1957a348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:29, skipping insertion in model container [2020-11-07 00:57:29,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:29" (2/3) ... [2020-11-07 00:57:29,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1957a348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:29, skipping insertion in model container [2020-11-07 00:57:29,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:29" (3/3) ... [2020-11-07 00:57:29,900 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_nullified-1.i [2020-11-07 00:57:29,918 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:57:29,922 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:57:29,935 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:57:29,961 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:57:29,961 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:57:29,961 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:57:29,962 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:57:29,962 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:57:29,962 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:57:29,962 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:57:29,962 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:57:29,982 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-11-07 00:57:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-07 00:57:29,994 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:57:29,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:57:29,996 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:57:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:57:30,002 INFO L82 PathProgramCache]: Analyzing trace with hash 395394382, now seen corresponding path program 1 times [2020-11-07 00:57:30,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:57:30,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003118681] [2020-11-07 00:57:30,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:57:30,112 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:57:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:30,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:57:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:30,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 00:57:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:57:30,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003118681] [2020-11-07 00:57:30,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:57:30,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:57:30,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539492113] [2020-11-07 00:57:30,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:57:30,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:57:30,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:57:30,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:57:30,470 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 7 states. [2020-11-07 00:57:31,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:57:31,063 INFO L93 Difference]: Finished difference Result 202 states and 233 transitions. [2020-11-07 00:57:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 00:57:31,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-11-07 00:57:31,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:57:31,076 INFO L225 Difference]: With dead ends: 202 [2020-11-07 00:57:31,076 INFO L226 Difference]: Without dead ends: 118 [2020-11-07 00:57:31,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:57:31,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-07 00:57:31,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 99. [2020-11-07 00:57:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-07 00:57:31,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2020-11-07 00:57:31,139 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 38 [2020-11-07 00:57:31,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:57:31,140 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2020-11-07 00:57:31,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:57:31,140 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2020-11-07 00:57:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-07 00:57:31,143 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:57:31,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:57:31,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:57:31,144 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:57:31,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:57:31,145 INFO L82 PathProgramCache]: Analyzing trace with hash -346510149, now seen corresponding path program 1 times [2020-11-07 00:57:31,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:57:31,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215343733] [2020-11-07 00:57:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:57:34,497 WARN L194 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-11-07 00:57:34,585 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_24|, |v_#memory_$Pointer$.offset_23|, |v_#memory_int_26|, |v_#memory_$Pointer$.base_24|, |v_#memory_$Pointer$.base_23|], 4=[|v_#memory_$Pointer$.base_22|, |v_#memory_$Pointer$.offset_22|]} [2020-11-07 00:57:34,607 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:35,274 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-11-07 00:57:35,278 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:57:35,305 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:35,951 WARN L194 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-11-07 00:57:35,952 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:57:35,967 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:36,599 WARN L194 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-11-07 00:57:36,600 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:57:36,616 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:37,144 WARN L194 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-11-07 00:57:37,145 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:57:37,159 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:37,605 WARN L194 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-11-07 00:57:37,606 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:57:37,615 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:37,900 WARN L194 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 00:57:37,900 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:57:37,909 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:38,106 WARN L194 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 00:57:38,108 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:57:38,111 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:38,111 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:253, output treesize:159 [2020-11-07 00:57:38,320 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 00:57:38,338 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 00:57:38,344 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:57:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:38,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:57:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:38,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 00:57:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:57:38,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:57:38,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215343733] [2020-11-07 00:57:38,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:57:38,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 00:57:38,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717122834] [2020-11-07 00:57:38,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 00:57:38,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:57:38,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 00:57:38,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:57:38,729 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 11 states. [2020-11-07 00:57:39,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:57:39,499 INFO L93 Difference]: Finished difference Result 230 states and 254 transitions. [2020-11-07 00:57:39,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:57:39,499 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-11-07 00:57:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:57:39,504 INFO L225 Difference]: With dead ends: 230 [2020-11-07 00:57:39,505 INFO L226 Difference]: Without dead ends: 173 [2020-11-07 00:57:39,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:57:39,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-11-07 00:57:39,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 115. [2020-11-07 00:57:39,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-07 00:57:39,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 126 transitions. [2020-11-07 00:57:39,529 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 126 transitions. Word has length 57 [2020-11-07 00:57:39,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:57:39,530 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 126 transitions. [2020-11-07 00:57:39,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 00:57:39,530 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 126 transitions. [2020-11-07 00:57:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-07 00:57:39,532 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:57:39,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:57:39,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:57:39,533 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:57:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:57:39,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1373842663, now seen corresponding path program 1 times [2020-11-07 00:57:39,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:57:39,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65365452] [2020-11-07 00:57:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:57:46,656 WARN L194 SmtUtils]: Spent 7.12 s on a formula simplification. DAG size of input: 171 DAG size of output: 163 [2020-11-07 00:57:46,684 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_31|, |v_#memory_$Pointer$.base_30|, |v_#memory_$Pointer$.offset_31|, |v_#memory_int_32|, |v_#memory_$Pointer$.offset_30|, |v_#memory_int_33|], 6=[|v_#memory_$Pointer$.base_29|, |v_#memory_$Pointer$.offset_29|]} [2020-11-07 00:57:46,758 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:46,800 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:52,852 WARN L194 SmtUtils]: Spent 6.05 s on a formula simplification that was a NOOP. DAG size: 136 [2020-11-07 00:57:52,852 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:57:52,904 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:57:52,947 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:00,379 WARN L194 SmtUtils]: Spent 7.43 s on a formula simplification that was a NOOP. DAG size: 134 [2020-11-07 00:58:00,380 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:58:00,431 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:00,472 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:10,367 WARN L194 SmtUtils]: Spent 9.89 s on a formula simplification that was a NOOP. DAG size: 135 [2020-11-07 00:58:10,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:58:10,385 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:10,444 INFO L547 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:22,261 WARN L194 SmtUtils]: Spent 11.82 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 00:58:22,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:58:22,313 INFO L547 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:22,372 INFO L547 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:33,342 WARN L194 SmtUtils]: Spent 10.97 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 00:58:33,343 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:58:33,378 INFO L547 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:33,427 INFO L547 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:40,799 WARN L194 SmtUtils]: Spent 7.37 s on a formula simplification that was a NOOP. DAG size: 135 [2020-11-07 00:58:40,799 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:58:40,824 INFO L547 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:40,945 INFO L547 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:48,134 WARN L194 SmtUtils]: Spent 7.19 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 00:58:48,135 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:58:48,209 INFO L547 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:48,264 INFO L547 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:58:54,455 WARN L194 SmtUtils]: Spent 6.19 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 00:58:54,455 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:58:54,460 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2020-11-07 00:58:54,460 INFO L244 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:641, output treesize:543 [2020-11-07 00:58:59,934 WARN L194 SmtUtils]: Spent 5.47 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 00:58:59,955 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 00:58:59,967 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:59:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:59:00,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:59:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:59:00,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 00:59:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:59:00,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:59:00,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65365452] [2020-11-07 00:59:00,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:59:00,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 00:59:00,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372982830] [2020-11-07 00:59:00,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 00:59:00,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:59:00,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 00:59:00,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:59:00,186 INFO L87 Difference]: Start difference. First operand 115 states and 126 transitions. Second operand 5 states. [2020-11-07 00:59:00,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:59:00,601 INFO L93 Difference]: Finished difference Result 229 states and 253 transitions. [2020-11-07 00:59:00,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:59:00,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-11-07 00:59:00,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:59:00,605 INFO L225 Difference]: With dead ends: 229 [2020-11-07 00:59:00,605 INFO L226 Difference]: Without dead ends: 130 [2020-11-07 00:59:00,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:59:00,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-07 00:59:00,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-11-07 00:59:00,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-07 00:59:00,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 142 transitions. [2020-11-07 00:59:00,646 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 142 transitions. Word has length 58 [2020-11-07 00:59:00,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:59:00,647 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 142 transitions. [2020-11-07 00:59:00,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 00:59:00,647 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 142 transitions. [2020-11-07 00:59:00,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-07 00:59:00,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:59:00,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:59:00,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:59:00,655 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:59:00,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:59:00,656 INFO L82 PathProgramCache]: Analyzing trace with hash -526711592, now seen corresponding path program 1 times [2020-11-07 00:59:00,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:59:00,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500366641] [2020-11-07 00:59:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:59:04,415 WARN L194 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-11-07 00:59:04,452 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_37|, |v_#memory_$Pointer$.offset_36|, |v_#memory_int_39|, |v_#memory_$Pointer$.base_37|, |v_#memory_$Pointer$.base_36|], 4=[|v_#memory_$Pointer$.offset_35|, |v_#memory_$Pointer$.base_35|]} [2020-11-07 00:59:04,473 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:05,191 WARN L194 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-11-07 00:59:05,195 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:05,212 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:06,056 WARN L194 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-11-07 00:59:06,057 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:06,074 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:06,945 WARN L194 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-11-07 00:59:06,946 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:06,963 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:07,647 WARN L194 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-11-07 00:59:07,648 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:07,663 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:08,293 WARN L194 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-11-07 00:59:08,294 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:08,308 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:08,788 WARN L194 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 00:59:08,789 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:08,799 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:09,134 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 00:59:09,135 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:09,136 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:09,137 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:253, output treesize:159 [2020-11-07 00:59:09,473 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 00:59:09,476 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 00:59:09,480 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:59:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:59:09,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:59:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:59:09,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 00:59:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:59:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:59:09,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500366641] [2020-11-07 00:59:09,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:59:09,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:59:09,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380786361] [2020-11-07 00:59:09,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:59:09,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:59:09,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:59:09,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:59:09,760 INFO L87 Difference]: Start difference. First operand 130 states and 142 transitions. Second operand 9 states. [2020-11-07 00:59:10,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:59:10,381 INFO L93 Difference]: Finished difference Result 225 states and 247 transitions. [2020-11-07 00:59:10,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:59:10,383 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 59 [2020-11-07 00:59:10,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:59:10,385 INFO L225 Difference]: With dead ends: 225 [2020-11-07 00:59:10,385 INFO L226 Difference]: Without dead ends: 157 [2020-11-07 00:59:10,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:59:10,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-11-07 00:59:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 135. [2020-11-07 00:59:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-11-07 00:59:10,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 147 transitions. [2020-11-07 00:59:10,408 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 147 transitions. Word has length 59 [2020-11-07 00:59:10,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:59:10,409 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 147 transitions. [2020-11-07 00:59:10,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:59:10,409 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 147 transitions. [2020-11-07 00:59:10,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-11-07 00:59:10,411 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:59:10,411 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-07 00:59:10,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:59:10,411 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:59:10,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:59:10,412 INFO L82 PathProgramCache]: Analyzing trace with hash -2013836794, now seen corresponding path program 1 times [2020-11-07 00:59:10,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:59:10,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003727941] [2020-11-07 00:59:10,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:59:15,171 WARN L194 SmtUtils]: Spent 4.76 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-11-07 00:59:15,200 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_42|, |v_#memory_$Pointer$.offset_42|, |v_#memory_$Pointer$.base_43|, |v_#memory_int_45|, |v_#memory_$Pointer$.offset_43|], 4=[|v_#memory_$Pointer$.base_41|, |v_#memory_$Pointer$.offset_41|]} [2020-11-07 00:59:15,227 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:16,302 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 114 [2020-11-07 00:59:16,302 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:16,323 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:17,372 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 110 [2020-11-07 00:59:17,373 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:17,385 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:18,285 WARN L194 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-11-07 00:59:18,286 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:18,300 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:19,052 WARN L194 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-11-07 00:59:19,053 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:19,061 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:19,505 WARN L194 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 00:59:19,506 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:19,513 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:19,968 WARN L194 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 00:59:19,968 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:19,981 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:20,350 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 00:59:20,351 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:20,352 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:20,353 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:253, output treesize:159 [2020-11-07 00:59:20,721 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 00:59:30,271 WARN L194 SmtUtils]: Spent 9.55 s on a formula simplification. DAG size of input: 171 DAG size of output: 163 [2020-11-07 00:59:30,298 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_int_51|, |v_#memory_int_52|, |v_#memory_$Pointer$.offset_50|, |v_#memory_$Pointer$.base_50|, |v_#memory_$Pointer$.base_49|, |v_#memory_$Pointer$.offset_49|], 6=[|v_#memory_$Pointer$.offset_48|, |v_#memory_$Pointer$.base_48|]} [2020-11-07 00:59:30,344 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:30,361 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:36,224 WARN L194 SmtUtils]: Spent 5.86 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 00:59:36,225 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:36,257 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:36,277 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:40,767 WARN L194 SmtUtils]: Spent 4.49 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 00:59:40,768 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:40,843 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:40,885 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:46,069 WARN L194 SmtUtils]: Spent 5.18 s on a formula simplification that was a NOOP. DAG size: 138 [2020-11-07 00:59:46,070 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:46,121 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:46,222 INFO L547 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:52,802 WARN L194 SmtUtils]: Spent 6.58 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 00:59:52,803 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:52,884 INFO L547 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:52,978 INFO L547 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:58,264 WARN L194 SmtUtils]: Spent 5.29 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 00:59:58,265 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 00:59:58,353 INFO L547 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 00:59:58,421 INFO L547 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:09,544 WARN L194 SmtUtils]: Spent 11.12 s on a formula simplification that was a NOOP. DAG size: 135 [2020-11-07 01:00:09,545 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:09,629 INFO L547 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:09,688 INFO L547 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:19,409 WARN L194 SmtUtils]: Spent 9.72 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 01:00:19,411 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:19,509 INFO L547 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:19,602 INFO L547 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:25,408 WARN L194 SmtUtils]: Spent 5.80 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:00:25,409 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:25,412 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2020-11-07 01:00:25,413 INFO L244 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:641, output treesize:543 [2020-11-07 01:00:31,252 WARN L194 SmtUtils]: Spent 5.84 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:00:37,292 WARN L194 SmtUtils]: Spent 6.03 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-11-07 01:00:37,305 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_55|, |v_#memory_$Pointer$.offset_55|, |v_#memory_int_58|, |v_#memory_$Pointer$.offset_56|, |v_#memory_$Pointer$.base_56|], 4=[|v_#memory_$Pointer$.base_54|, |v_#memory_$Pointer$.offset_54|]} [2020-11-07 01:00:37,341 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:38,959 WARN L194 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 114 [2020-11-07 01:00:38,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:38,995 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:40,854 WARN L194 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 110 [2020-11-07 01:00:40,855 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:40,887 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:42,327 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 106 [2020-11-07 01:00:42,329 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:42,357 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:43,630 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 102 [2020-11-07 01:00:43,632 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:43,650 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:44,448 WARN L194 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 01:00:44,449 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:44,467 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:45,176 WARN L194 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 01:00:45,178 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:45,191 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:45,825 WARN L194 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 01:00:45,827 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:45,828 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:45,829 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:253, output treesize:159 [2020-11-07 01:00:46,429 WARN L194 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 01:00:46,434 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 01:00:46,437 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:00:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:00:46,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:00:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:00:46,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 01:00:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:00:46,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 01:00:46,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003727941] [2020-11-07 01:00:46,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:00:46,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 01:00:46,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788010528] [2020-11-07 01:00:46,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 01:00:46,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:00:46,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 01:00:46,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-07 01:00:46,861 INFO L87 Difference]: Start difference. First operand 135 states and 147 transitions. Second operand 11 states. [2020-11-07 01:00:47,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:00:47,871 INFO L93 Difference]: Finished difference Result 256 states and 281 transitions. [2020-11-07 01:00:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 01:00:47,873 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-11-07 01:00:47,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:00:47,876 INFO L225 Difference]: With dead ends: 256 [2020-11-07 01:00:47,876 INFO L226 Difference]: Without dead ends: 183 [2020-11-07 01:00:47,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-11-07 01:00:47,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-11-07 01:00:47,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 156. [2020-11-07 01:00:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-11-07 01:00:47,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 170 transitions. [2020-11-07 01:00:47,901 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 170 transitions. Word has length 77 [2020-11-07 01:00:47,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:00:47,902 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 170 transitions. [2020-11-07 01:00:47,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 01:00:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 170 transitions. [2020-11-07 01:00:47,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-11-07 01:00:47,904 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:00:47,904 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-07 01:00:47,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 01:00:47,905 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:00:47,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:00:47,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1518302727, now seen corresponding path program 2 times [2020-11-07 01:00:47,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:00:47,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263164483] [2020-11-07 01:00:47,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:00:54,140 WARN L194 SmtUtils]: Spent 6.23 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-11-07 01:00:54,153 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_62|, |v_#memory_$Pointer$.offset_61|, |v_#memory_int_64|, |v_#memory_$Pointer$.base_62|, |v_#memory_$Pointer$.base_61|], 4=[|v_#memory_$Pointer$.base_60|, |v_#memory_$Pointer$.offset_60|]} [2020-11-07 01:00:54,222 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:55,797 WARN L194 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 113 [2020-11-07 01:00:55,798 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:55,827 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:56,972 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 109 [2020-11-07 01:00:56,973 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:56,997 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:58,311 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 105 [2020-11-07 01:00:58,313 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:58,338 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:00:59,678 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 101 [2020-11-07 01:00:59,679 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:00:59,702 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:00,805 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 97 [2020-11-07 01:01:00,806 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:01:00,822 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:01,722 WARN L194 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 01:01:01,723 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:01:01,736 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:02,392 WARN L194 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 01:01:02,393 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:01:02,395 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:02,396 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:253, output treesize:159 [2020-11-07 01:01:02,963 WARN L194 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 01:01:14,032 WARN L194 SmtUtils]: Spent 11.06 s on a formula simplification. DAG size of input: 171 DAG size of output: 163 [2020-11-07 01:01:14,057 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_68|, |v_#memory_$Pointer$.offset_69|, |v_#memory_$Pointer$.base_68|, |v_#memory_int_70|, |v_#memory_int_71|, |v_#memory_$Pointer$.base_69|], 6=[|v_#memory_$Pointer$.offset_67|, |v_#memory_$Pointer$.base_67|]} [2020-11-07 01:01:14,147 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:14,228 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:25,670 WARN L194 SmtUtils]: Spent 11.44 s on a formula simplification that was a NOOP. DAG size: 136 [2020-11-07 01:01:25,671 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:01:25,744 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:25,783 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:34,196 WARN L194 SmtUtils]: Spent 8.41 s on a formula simplification that was a NOOP. DAG size: 134 [2020-11-07 01:01:34,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:01:34,286 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:34,334 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:45,187 WARN L194 SmtUtils]: Spent 10.85 s on a formula simplification that was a NOOP. DAG size: 135 [2020-11-07 01:01:45,189 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:01:45,279 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:45,398 INFO L547 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:56,477 WARN L194 SmtUtils]: Spent 11.08 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:01:56,479 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:01:56,529 INFO L547 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:01:56,589 INFO L547 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:02:11,522 WARN L194 SmtUtils]: Spent 14.93 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 01:02:11,524 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:02:11,588 INFO L547 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:02:11,656 INFO L547 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:02:24,073 WARN L194 SmtUtils]: Spent 12.42 s on a formula simplification that was a NOOP. DAG size: 135 [2020-11-07 01:02:24,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:02:24,162 INFO L547 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:02:24,222 INFO L547 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:02:36,384 WARN L194 SmtUtils]: Spent 12.16 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 01:02:36,386 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:02:36,433 INFO L547 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:02:36,609 INFO L547 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:02:44,484 WARN L194 SmtUtils]: Spent 7.87 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:02:44,486 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:02:44,490 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2020-11-07 01:02:44,490 INFO L244 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:641, output treesize:543 [2020-11-07 01:02:52,970 WARN L194 SmtUtils]: Spent 8.48 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:03:01,414 WARN L194 SmtUtils]: Spent 8.44 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-11-07 01:03:01,429 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_75|, |v_#memory_$Pointer$.base_74|, |v_#memory_$Pointer$.offset_75|, |v_#memory_$Pointer$.offset_74|, |v_#memory_int_77|], 4=[|v_#memory_$Pointer$.offset_73|, |v_#memory_$Pointer$.base_73|]} [2020-11-07 01:03:01,448 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:04,432 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification that was a NOOP. DAG size: 114 [2020-11-07 01:03:04,434 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:04,456 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:06,467 WARN L194 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 110 [2020-11-07 01:03:06,469 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:06,484 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:08,277 WARN L194 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 106 [2020-11-07 01:03:08,279 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:08,311 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:09,773 WARN L194 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 102 [2020-11-07 01:03:09,775 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:09,802 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:11,345 WARN L194 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 01:03:11,348 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:11,371 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:12,557 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 01:03:12,558 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:12,577 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:13,640 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 01:03:13,642 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:13,644 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:13,644 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:253, output treesize:159 [2020-11-07 01:03:14,672 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 01:03:14,676 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 01:03:14,680 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:03:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:03:14,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:03:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:03:14,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 01:03:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:03:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 01:03:14,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263164483] [2020-11-07 01:03:14,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:03:14,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 01:03:14,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215651245] [2020-11-07 01:03:14,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 01:03:14,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:03:14,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 01:03:14,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-07 01:03:14,974 INFO L87 Difference]: Start difference. First operand 156 states and 170 transitions. Second operand 7 states. [2020-11-07 01:03:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:03:16,148 INFO L93 Difference]: Finished difference Result 244 states and 267 transitions. [2020-11-07 01:03:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 01:03:16,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2020-11-07 01:03:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:03:16,156 INFO L225 Difference]: With dead ends: 244 [2020-11-07 01:03:16,156 INFO L226 Difference]: Without dead ends: 140 [2020-11-07 01:03:16,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-07 01:03:16,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-07 01:03:16,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-11-07 01:03:16,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-07 01:03:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 150 transitions. [2020-11-07 01:03:16,185 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 150 transitions. Word has length 96 [2020-11-07 01:03:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:03:16,188 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 150 transitions. [2020-11-07 01:03:16,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 01:03:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 150 transitions. [2020-11-07 01:03:16,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-11-07 01:03:16,190 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:03:16,190 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-07 01:03:16,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 01:03:16,191 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:03:16,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:03:16,191 INFO L82 PathProgramCache]: Analyzing trace with hash 687166417, now seen corresponding path program 3 times [2020-11-07 01:03:16,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:03:16,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641075468] [2020-11-07 01:03:16,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:03:24,433 WARN L194 SmtUtils]: Spent 8.23 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-11-07 01:03:24,449 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_81|, |v_#memory_$Pointer$.base_80|, |v_#memory_$Pointer$.offset_80|, |v_#memory_int_83|, |v_#memory_$Pointer$.offset_81|], 4=[|v_#memory_$Pointer$.offset_79|, |v_#memory_$Pointer$.base_79|]} [2020-11-07 01:03:24,494 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:26,164 WARN L194 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 114 [2020-11-07 01:03:26,166 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:26,203 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:28,016 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 110 [2020-11-07 01:03:28,018 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:28,058 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:30,016 WARN L194 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 106 [2020-11-07 01:03:30,018 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:30,044 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:31,830 WARN L194 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 102 [2020-11-07 01:03:31,833 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:31,859 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:33,690 WARN L194 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 01:03:33,691 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:33,725 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:34,811 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 01:03:34,812 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:34,831 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:35,942 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 01:03:35,943 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:35,945 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:35,945 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:253, output treesize:159 [2020-11-07 01:03:37,023 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 01:03:49,352 WARN L194 SmtUtils]: Spent 12.32 s on a formula simplification. DAG size of input: 171 DAG size of output: 163 [2020-11-07 01:03:49,379 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_88|, |v_#memory_$Pointer$.base_87|, |v_#memory_$Pointer$.offset_88|, |v_#memory_int_89|, |v_#memory_$Pointer$.offset_87|, |v_#memory_int_90|], 6=[|v_#memory_$Pointer$.base_86|, |v_#memory_$Pointer$.offset_86|]} [2020-11-07 01:03:49,432 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:49,510 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:59,086 WARN L194 SmtUtils]: Spent 9.58 s on a formula simplification that was a NOOP. DAG size: 136 [2020-11-07 01:03:59,088 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:03:59,116 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:03:59,158 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:04:10,466 WARN L194 SmtUtils]: Spent 11.31 s on a formula simplification that was a NOOP. DAG size: 134 [2020-11-07 01:04:10,467 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:04:10,541 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:04:10,567 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:04:26,126 WARN L194 SmtUtils]: Spent 15.56 s on a formula simplification that was a NOOP. DAG size: 135 [2020-11-07 01:04:26,130 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:04:26,191 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:04:26,323 INFO L547 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:04:45,599 WARN L194 SmtUtils]: Spent 19.28 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:04:45,601 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:04:45,689 INFO L547 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:04:45,808 INFO L547 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:04:59,059 WARN L194 SmtUtils]: Spent 13.25 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 01:04:59,061 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:04:59,134 INFO L547 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:04:59,158 INFO L547 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:05:16,341 WARN L194 SmtUtils]: Spent 17.18 s on a formula simplification that was a NOOP. DAG size: 135 [2020-11-07 01:05:16,344 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:05:16,387 INFO L547 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:05:16,466 INFO L547 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:05:31,027 WARN L194 SmtUtils]: Spent 14.56 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 01:05:31,029 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:05:31,070 INFO L547 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:05:31,101 INFO L547 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:05:42,357 WARN L194 SmtUtils]: Spent 11.25 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:05:42,359 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:05:42,360 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2020-11-07 01:05:42,361 INFO L244 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:641, output treesize:543 [2020-11-07 01:05:53,632 WARN L194 SmtUtils]: Spent 11.27 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:06:08,233 WARN L194 SmtUtils]: Spent 14.59 s on a formula simplification. DAG size of input: 171 DAG size of output: 163 [2020-11-07 01:06:08,251 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_95|, |v_#memory_$Pointer$.offset_94|, |v_#memory_int_96|, |v_#memory_int_97|, |v_#memory_$Pointer$.base_95|, |v_#memory_$Pointer$.base_94|], 6=[|v_#memory_$Pointer$.base_93|, |v_#memory_$Pointer$.offset_93|]} [2020-11-07 01:06:08,370 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:06:08,452 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:06:23,411 WARN L194 SmtUtils]: Spent 14.96 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 01:06:23,413 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:06:23,498 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:06:23,552 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:06:38,356 WARN L194 SmtUtils]: Spent 14.80 s on a formula simplification that was a NOOP. DAG size: 135 [2020-11-07 01:06:38,358 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:06:38,413 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:06:38,457 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:06:56,016 WARN L194 SmtUtils]: Spent 17.56 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:06:56,019 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:06:56,220 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:06:56,291 INFO L547 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:07:12,778 WARN L194 SmtUtils]: Spent 16.49 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 01:07:12,780 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:07:12,983 INFO L547 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:07:13,037 INFO L547 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:07:34,544 WARN L194 SmtUtils]: Spent 21.51 s on a formula simplification that was a NOOP. DAG size: 138 [2020-11-07 01:07:34,546 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:07:34,727 INFO L547 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:07:34,828 INFO L547 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:07:52,176 WARN L194 SmtUtils]: Spent 17.35 s on a formula simplification that was a NOOP. DAG size: 136 [2020-11-07 01:07:52,178 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:07:52,261 INFO L547 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:07:52,402 INFO L547 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:08:12,006 WARN L194 SmtUtils]: Spent 19.60 s on a formula simplification that was a NOOP. DAG size: 138 [2020-11-07 01:08:12,008 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:08:12,154 INFO L547 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:08:12,305 INFO L547 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:08:25,601 WARN L194 SmtUtils]: Spent 13.29 s on a formula simplification that was a NOOP. DAG size: 140 [2020-11-07 01:08:25,603 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:08:25,606 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2020-11-07 01:08:25,607 INFO L244 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:641, output treesize:543 [2020-11-07 01:08:42,020 WARN L194 SmtUtils]: Spent 16.41 s on a formula simplification that was a NOOP. DAG size: 140 [2020-11-07 01:08:52,476 WARN L194 SmtUtils]: Spent 10.45 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-11-07 01:08:52,494 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_int_103|, |v_#memory_$Pointer$.offset_100|, |v_#memory_$Pointer$.base_101|, |v_#memory_$Pointer$.offset_101|, |v_#memory_$Pointer$.base_100|], 4=[|v_#memory_$Pointer$.base_99|, |v_#memory_$Pointer$.offset_99|]} [2020-11-07 01:08:52,538 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:08:56,262 WARN L194 SmtUtils]: Spent 3.72 s on a formula simplification that was a NOOP. DAG size: 113 [2020-11-07 01:08:56,264 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:08:56,300 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:00,606 WARN L194 SmtUtils]: Spent 4.31 s on a formula simplification that was a NOOP. DAG size: 109 [2020-11-07 01:09:00,609 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:00,673 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:04,293 WARN L194 SmtUtils]: Spent 3.62 s on a formula simplification that was a NOOP. DAG size: 105 [2020-11-07 01:09:04,295 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:04,360 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:07,680 WARN L194 SmtUtils]: Spent 3.32 s on a formula simplification that was a NOOP. DAG size: 101 [2020-11-07 01:09:07,683 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:07,729 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:10,547 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 97 [2020-11-07 01:09:10,549 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:10,589 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:12,994 WARN L194 SmtUtils]: Spent 2.40 s on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 01:09:12,996 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:13,026 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:15,034 WARN L194 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 01:09:15,036 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:15,038 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:15,038 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:253, output treesize:159 [2020-11-07 01:09:16,914 WARN L194 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 01:09:16,920 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-11-07 01:09:16,923 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:09:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:09:17,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:09:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:09:17,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 01:09:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:09:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 01:09:17,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641075468] [2020-11-07 01:09:17,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:09:17,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 01:09:17,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557235080] [2020-11-07 01:09:17,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 01:09:17,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:09:17,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 01:09:17,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-11-07 01:09:17,792 INFO L87 Difference]: Start difference. First operand 140 states and 150 transitions. Second operand 13 states. [2020-11-07 01:09:18,207 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-11-07 01:09:20,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 01:09:20,300 INFO L93 Difference]: Finished difference Result 242 states and 261 transitions. [2020-11-07 01:09:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 01:09:20,309 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2020-11-07 01:09:20,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 01:09:20,311 INFO L225 Difference]: With dead ends: 242 [2020-11-07 01:09:20,311 INFO L226 Difference]: Without dead ends: 180 [2020-11-07 01:09:20,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2020-11-07 01:09:20,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-07 01:09:20,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 161. [2020-11-07 01:09:20,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-11-07 01:09:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 172 transitions. [2020-11-07 01:09:20,334 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 172 transitions. Word has length 97 [2020-11-07 01:09:20,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 01:09:20,335 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 172 transitions. [2020-11-07 01:09:20,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 01:09:20,335 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 172 transitions. [2020-11-07 01:09:20,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-11-07 01:09:20,342 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:09:20,343 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:20,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 01:09:20,343 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:09:20,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:09:20,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1126200804, now seen corresponding path program 4 times [2020-11-07 01:09:20,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:09:20,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042458454] [2020-11-07 01:09:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:09:31,156 WARN L194 SmtUtils]: Spent 10.81 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-11-07 01:09:31,175 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_int_109|, |v_#memory_$Pointer$.offset_106|, |v_#memory_$Pointer$.offset_107|, |v_#memory_$Pointer$.base_107|, |v_#memory_$Pointer$.base_106|], 4=[|v_#memory_$Pointer$.offset_105|, |v_#memory_$Pointer$.base_105|]} [2020-11-07 01:09:31,215 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:34,785 WARN L194 SmtUtils]: Spent 3.57 s on a formula simplification that was a NOOP. DAG size: 114 [2020-11-07 01:09:34,788 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:34,823 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:36,630 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 110 [2020-11-07 01:09:36,633 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:36,663 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:38,210 WARN L194 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 106 [2020-11-07 01:09:38,212 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:38,243 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:39,753 WARN L194 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 102 [2020-11-07 01:09:39,756 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:39,802 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:41,213 WARN L194 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 01:09:41,216 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:41,232 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:43,788 WARN L194 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 01:09:43,790 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:43,816 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:45,652 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 01:09:45,662 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:09:45,663 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-11-07 01:09:45,664 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:253, output treesize:159 [2020-11-07 01:09:47,532 WARN L194 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 01:10:06,497 WARN L194 SmtUtils]: Spent 18.96 s on a formula simplification. DAG size of input: 171 DAG size of output: 163 [2020-11-07 01:10:06,522 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_int_115|, |v_#memory_int_116|, |v_#memory_$Pointer$.base_114|, |v_#memory_$Pointer$.base_113|, |v_#memory_$Pointer$.offset_113|, |v_#memory_$Pointer$.offset_114|], 6=[|v_#memory_$Pointer$.base_112|, |v_#memory_$Pointer$.offset_112|]} [2020-11-07 01:10:06,640 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:10:06,853 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:10:21,129 WARN L194 SmtUtils]: Spent 14.27 s on a formula simplification that was a NOOP. DAG size: 140 [2020-11-07 01:10:21,132 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:10:21,188 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:10:21,223 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:10:37,255 WARN L194 SmtUtils]: Spent 16.03 s on a formula simplification that was a NOOP. DAG size: 138 [2020-11-07 01:10:37,258 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:10:37,373 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:10:37,502 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:10:52,563 WARN L194 SmtUtils]: Spent 15.06 s on a formula simplification that was a NOOP. DAG size: 139 [2020-11-07 01:10:52,565 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:10:52,683 INFO L547 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:10:52,731 INFO L547 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:11:04,141 WARN L194 SmtUtils]: Spent 11.41 s on a formula simplification that was a NOOP. DAG size: 137 [2020-11-07 01:11:04,144 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:11:04,191 INFO L547 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:11:04,359 INFO L547 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:11:18,822 WARN L194 SmtUtils]: Spent 14.46 s on a formula simplification that was a NOOP. DAG size: 138 [2020-11-07 01:11:18,824 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:11:18,935 INFO L547 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:11:18,990 INFO L547 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:11:31,595 WARN L194 SmtUtils]: Spent 12.60 s on a formula simplification that was a NOOP. DAG size: 136 [2020-11-07 01:11:31,598 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:11:31,720 INFO L547 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:11:31,910 INFO L547 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:11:45,153 WARN L194 SmtUtils]: Spent 13.24 s on a formula simplification that was a NOOP. DAG size: 138 [2020-11-07 01:11:45,156 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:11:45,367 INFO L547 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:11:45,497 INFO L547 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-07 01:11:57,014 WARN L194 SmtUtils]: Spent 11.52 s on a formula simplification that was a NOOP. DAG size: 140 [2020-11-07 01:11:57,017 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-07 01:11:57,019 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2020-11-07 01:11:57,020 INFO L244 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:641, output treesize:543