/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/list_search-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:24:59,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:24:59,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:24:59,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:24:59,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:24:59,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:24:59,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:24:59,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:24:59,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:24:59,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:24:59,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:24:59,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:24:59,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:24:59,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:24:59,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:24:59,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:24:59,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:24:59,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:24:59,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:24:59,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:24:59,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:24:59,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:24:59,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:24:59,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:24:59,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:24:59,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:24:59,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:24:59,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:24:59,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:24:59,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:24:59,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:24:59,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:24:59,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:24:59,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:24:59,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:24:59,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:24:59,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:24:59,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:24:59,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:24:59,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:24:59,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:24:59,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:24:59,701 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:24:59,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:24:59,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:24:59,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:24:59,703 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:24:59,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:24:59,703 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:24:59,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:24:59,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:24:59,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:24:59,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:24:59,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:24:59,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:24:59,705 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:24:59,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:24:59,705 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:24:59,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:24:59,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:24:59,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:24:59,706 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:24:59,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:24:59,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:24:59,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:24:59,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:24:59,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:24:59,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:24:59,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:24:59,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:24:59,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:24:59,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:25:00,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:25:00,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:25:00,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:25:00,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:25:00,123 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:25:00,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-1.i [2020-10-23 18:25:00,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d948ac00e/4e237ab0f18f4c8cadf8de47687cf0ee/FLAGec1500597 [2020-10-23 18:25:00,889 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:25:00,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-1.i [2020-10-23 18:25:00,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d948ac00e/4e237ab0f18f4c8cadf8de47687cf0ee/FLAGec1500597 [2020-10-23 18:25:01,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d948ac00e/4e237ab0f18f4c8cadf8de47687cf0ee [2020-10-23 18:25:01,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:25:01,203 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:25:01,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:25:01,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:25:01,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:25:01,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:25:01" (1/1) ... [2020-10-23 18:25:01,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66be848b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01, skipping insertion in model container [2020-10-23 18:25:01,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:25:01" (1/1) ... [2020-10-23 18:25:01,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:25:01,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:25:01,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:25:01,700 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:25:01,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:25:01,840 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:25:01,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01 WrapperNode [2020-10-23 18:25:01,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:25:01,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:25:01,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:25:01,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:25:01,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01" (1/1) ... [2020-10-23 18:25:01,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01" (1/1) ... [2020-10-23 18:25:01,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01" (1/1) ... [2020-10-23 18:25:01,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01" (1/1) ... [2020-10-23 18:25:01,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01" (1/1) ... [2020-10-23 18:25:01,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01" (1/1) ... [2020-10-23 18:25:01,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01" (1/1) ... [2020-10-23 18:25:01,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:25:01,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:25:01,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:25:01,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:25:01,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01" (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 [2020-10-23 18:25:01,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:25:01,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:25:01,999 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:25:01,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:25:02,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-23 18:25:02,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-23 18:25:02,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-23 18:25:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-23 18:25:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-23 18:25:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2020-10-23 18:25:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2020-10-23 18:25:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:25:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:25:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:25:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 18:25:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 18:25:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:25:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:25:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:25:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-23 18:25:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-23 18:25:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-23 18:25:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-23 18:25:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-23 18:25:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-23 18:25:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-23 18:25:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-23 18:25:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-23 18:25:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-23 18:25:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-23 18:25:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-23 18:25:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-23 18:25:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-23 18:25:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-23 18:25:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-23 18:25:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-23 18:25:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-23 18:25:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-23 18:25:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-23 18:25:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-23 18:25:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-23 18:25:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-23 18:25:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-23 18:25:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-23 18:25:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-23 18:25:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-23 18:25:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-23 18:25:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-23 18:25:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-23 18:25:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-23 18:25:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-23 18:25:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-23 18:25:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-23 18:25:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-23 18:25:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-23 18:25:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-23 18:25:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-23 18:25:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-23 18:25:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-23 18:25:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-23 18:25:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-23 18:25:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-23 18:25:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-23 18:25:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-23 18:25:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-23 18:25:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-23 18:25:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-23 18:25:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-23 18:25:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-23 18:25:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-23 18:25:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-23 18:25:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-23 18:25:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-23 18:25:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-23 18:25:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 18:25:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 18:25:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 18:25:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 18:25:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-23 18:25:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 18:25:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-23 18:25:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-23 18:25:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-23 18:25:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-23 18:25:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-23 18:25:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:25:02,019 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-23 18:25:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-23 18:25:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-23 18:25:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-23 18:25:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-23 18:25:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-23 18:25:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-23 18:25:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-23 18:25:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-23 18:25:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-23 18:25:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-23 18:25:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-23 18:25:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-23 18:25:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-23 18:25:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-23 18:25:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-23 18:25:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-23 18:25:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-23 18:25:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-23 18:25:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-23 18:25:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-23 18:25:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-23 18:25:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-23 18:25:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-23 18:25:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-23 18:25:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-23 18:25:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-23 18:25:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-23 18:25:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-23 18:25:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-23 18:25:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-23 18:25:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-23 18:25:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-23 18:25:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-23 18:25:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-23 18:25:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-23 18:25:02,026 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-23 18:25:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-23 18:25:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-23 18:25:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2020-10-23 18:25:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:25:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 18:25:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2020-10-23 18:25:02,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 18:25:02,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:25:02,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 18:25:02,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:25:02,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:25:02,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:25:02,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:25:02,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:25:02,782 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:25:02,783 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-23 18:25:02,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:25:02 BoogieIcfgContainer [2020-10-23 18:25:02,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:25:02,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:25:02,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:25:02,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:25:02,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:25:01" (1/3) ... [2020-10-23 18:25:02,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b85705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:25:02, skipping insertion in model container [2020-10-23 18:25:02,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:01" (2/3) ... [2020-10-23 18:25:02,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b85705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:25:02, skipping insertion in model container [2020-10-23 18:25:02,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:25:02" (3/3) ... [2020-10-23 18:25:02,793 INFO L111 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2020-10-23 18:25:02,805 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:25:02,810 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:25:02,823 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:25:02,854 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:25:02,854 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:25:02,854 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:25:02,854 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:25:02,854 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:25:02,854 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:25:02,854 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:25:02,855 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:25:02,872 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-10-23 18:25:02,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-23 18:25:02,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:02,880 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:25:02,880 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:02,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:02,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1132079083, now seen corresponding path program 1 times [2020-10-23 18:25:02,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:02,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030405064] [2020-10-23 18:25:02,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:03,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:25:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:03,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:25:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:03,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 18:25:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:03,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:25:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:03,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:25:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:03,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 18:25:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:03,507 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-23 18:25:03,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030405064] [2020-10-23 18:25:03,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865644537] [2020-10-23 18:25:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:25:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:04,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-23 18:25:04,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:25:04,115 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-23 18:25:04,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:25:04,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2020-10-23 18:25:04,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076143550] [2020-10-23 18:25:04,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-23 18:25:04,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:25:04,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-23 18:25:04,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:25:04,139 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-10-23 18:25:04,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:25:04,161 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2020-10-23 18:25:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-23 18:25:04,163 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2020-10-23 18:25:04,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:25:04,172 INFO L225 Difference]: With dead ends: 65 [2020-10-23 18:25:04,172 INFO L226 Difference]: Without dead ends: 35 [2020-10-23 18:25:04,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:25:04,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-23 18:25:04,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-23 18:25:04,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-23 18:25:04,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2020-10-23 18:25:04,217 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 47 [2020-10-23 18:25:04,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:25:04,219 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2020-10-23 18:25:04,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-23 18:25:04,219 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2020-10-23 18:25:04,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-23 18:25:04,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:04,222 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:25:04,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-10-23 18:25:04,437 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:04,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:04,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1798844206, now seen corresponding path program 1 times [2020-10-23 18:25:04,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:04,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089133891] [2020-10-23 18:25:04,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:04,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:25:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:04,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:25:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:04,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 18:25:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:04,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:25:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:04,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:25:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:04,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 18:25:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-23 18:25:04,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089133891] [2020-10-23 18:25:04,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671391123] [2020-10-23 18:25:04,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:25:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:05,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 22 conjunts are in the unsatisfiable core [2020-10-23 18:25:05,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:25:05,172 INFO L350 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2020-10-23 18:25:05,173 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 7 [2020-10-23 18:25:05,173 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:05,180 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:05,182 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:25:05,182 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:7 [2020-10-23 18:25:05,276 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:25:05,280 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:25:05,410 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-23 18:25:05,412 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:05,414 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:05,414 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:25:05,415 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:1 [2020-10-23 18:25:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-23 18:25:05,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:25:05,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2020-10-23 18:25:05,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440388602] [2020-10-23 18:25:05,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:25:05,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:25:05,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:25:05,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:25:05,424 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 10 states. [2020-10-23 18:25:05,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:25:05,741 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2020-10-23 18:25:05,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 18:25:05,742 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-10-23 18:25:05,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:25:05,745 INFO L225 Difference]: With dead ends: 55 [2020-10-23 18:25:05,745 INFO L226 Difference]: Without dead ends: 44 [2020-10-23 18:25:05,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2020-10-23 18:25:05,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-23 18:25:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2020-10-23 18:25:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-23 18:25:05,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-10-23 18:25:05,758 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 49 [2020-10-23 18:25:05,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:25:05,759 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-10-23 18:25:05,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:25:05,759 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-10-23 18:25:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-23 18:25:05,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:05,761 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:25:05,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:25:05,977 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:05,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:05,978 INFO L82 PathProgramCache]: Analyzing trace with hash 2057009644, now seen corresponding path program 1 times [2020-10-23 18:25:05,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:05,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404769921] [2020-10-23 18:25:05,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:25:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:25:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 18:25:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:25:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:25:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 18:25:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-23 18:25:06,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404769921] [2020-10-23 18:25:06,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683853056] [2020-10-23 18:25:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:25:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-23 18:25:06,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:25:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-23 18:25:06,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:25:06,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2020-10-23 18:25:06,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505640723] [2020-10-23 18:25:06,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:25:06,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:25:06,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:25:06,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:25:06,381 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 5 states. [2020-10-23 18:25:06,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:25:06,517 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2020-10-23 18:25:06,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:25:06,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-10-23 18:25:06,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:25:06,519 INFO L225 Difference]: With dead ends: 74 [2020-10-23 18:25:06,519 INFO L226 Difference]: Without dead ends: 43 [2020-10-23 18:25:06,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:25:06,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-23 18:25:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-23 18:25:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-23 18:25:06,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2020-10-23 18:25:06,538 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 49 [2020-10-23 18:25:06,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:25:06,538 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2020-10-23 18:25:06,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:25:06,539 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2020-10-23 18:25:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-23 18:25:06,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:06,544 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2020-10-23 18:25:06,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:25:06,759 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:06,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:06,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1633362922, now seen corresponding path program 1 times [2020-10-23 18:25:06,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:06,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797447653] [2020-10-23 18:25:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:25:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:25:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 18:25:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:25:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:25:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 18:25:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-23 18:25:06,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797447653] [2020-10-23 18:25:06,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:25:06,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 18:25:06,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572074292] [2020-10-23 18:25:06,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 18:25:06,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:25:06,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 18:25:06,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:25:06,974 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 9 states. [2020-10-23 18:25:07,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:25:07,468 INFO L93 Difference]: Finished difference Result 75 states and 89 transitions. [2020-10-23 18:25:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:25:07,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-10-23 18:25:07,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:25:07,470 INFO L225 Difference]: With dead ends: 75 [2020-10-23 18:25:07,471 INFO L226 Difference]: Without dead ends: 43 [2020-10-23 18:25:07,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2020-10-23 18:25:07,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-23 18:25:07,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-23 18:25:07,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-23 18:25:07,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2020-10-23 18:25:07,481 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 49 [2020-10-23 18:25:07,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:25:07,481 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2020-10-23 18:25:07,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 18:25:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2020-10-23 18:25:07,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-23 18:25:07,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:07,483 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2020-10-23 18:25:07,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:25:07,483 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:07,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:07,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1677512552, now seen corresponding path program 1 times [2020-10-23 18:25:07,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:07,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141334743] [2020-10-23 18:25:07,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:07,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:25:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:07,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:25:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:07,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 18:25:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:07,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 18:25:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:07,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:25:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:08,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 18:25:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:25:08,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141334743] [2020-10-23 18:25:08,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265191459] [2020-10-23 18:25:08,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:25:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:08,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 63 conjunts are in the unsatisfiable core [2020-10-23 18:25:08,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:25:08,428 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-23 18:25:08,428 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:08,435 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:08,438 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:25:08,438 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-23 18:25:08,487 INFO L350 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2020-10-23 18:25:08,487 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 7 [2020-10-23 18:25:08,487 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:08,493 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:08,493 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:25:08,494 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:13 [2020-10-23 18:25:08,749 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-23 18:25:08,750 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:08,764 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:08,770 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-23 18:25:08,770 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:08,787 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:08,789 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-23 18:25:08,789 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:46 [2020-10-23 18:25:10,677 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 30 [2020-10-23 18:25:11,942 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 30 [2020-10-23 18:25:11,973 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:11,974 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2020-10-23 18:25:11,975 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:11,994 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:12,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-23 18:25:12,009 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2020-10-23 18:25:12,011 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:12,019 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:12,021 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:25:12,021 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:30 [2020-10-23 18:25:12,277 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2020-10-23 18:25:12,279 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:12,290 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:12,294 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-10-23 18:25:12,295 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:12,300 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:12,301 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:25:12,301 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:48, output treesize:7 [2020-10-23 18:25:12,307 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-23 18:25:12,308 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:25:12,310 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:25:12,310 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:25:12,310 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-10-23 18:25:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:25:12,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:25:12,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2020-10-23 18:25:12,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385055193] [2020-10-23 18:25:12,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-23 18:25:12,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:25:12,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-23 18:25:12,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=979, Unknown=1, NotChecked=0, Total=1056 [2020-10-23 18:25:12,430 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 33 states. [2020-10-23 18:25:14,252 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-10-23 18:25:18,540 WARN L193 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2020-10-23 18:25:20,570 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2020-10-23 18:25:22,618 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-10-23 18:25:27,182 WARN L193 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2020-10-23 18:25:27,460 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-23 18:25:27,638 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-23 18:25:27,876 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-23 18:25:28,204 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-10-23 18:25:28,596 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 18:25:28,779 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-23 18:25:28,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:25:28,894 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2020-10-23 18:25:28,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 18:25:28,895 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 52 [2020-10-23 18:25:28,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:25:28,897 INFO L225 Difference]: With dead ends: 62 [2020-10-23 18:25:28,897 INFO L226 Difference]: Without dead ends: 51 [2020-10-23 18:25:28,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=252, Invalid=2297, Unknown=1, NotChecked=0, Total=2550 [2020-10-23 18:25:28,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-23 18:25:28,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-23 18:25:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-23 18:25:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2020-10-23 18:25:28,910 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 52 [2020-10-23 18:25:28,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:25:28,910 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2020-10-23 18:25:28,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-23 18:25:28,910 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2020-10-23 18:25:28,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-23 18:25:28,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:28,911 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2020-10-23 18:25:29,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:25:29,126 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:29,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:29,127 INFO L82 PathProgramCache]: Analyzing trace with hash 970297772, now seen corresponding path program 2 times [2020-10-23 18:25:29,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:29,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058406678] [2020-10-23 18:25:29,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:29,233 ERROR L253 erpolLogProxyWrapper]: Interpolant 12 not inductive [2020-10-23 18:25:29,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 18:25:29,234 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:876) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 18:25:29,239 INFO L168 Benchmark]: Toolchain (without parser) took 28041.34 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 125.2 MB in the beginning and 93.0 MB in the end (delta: 32.3 MB). Peak memory consumption was 101.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:29,240 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 256.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:25:29,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.76 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 102.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:29,241 INFO L168 Benchmark]: Boogie Preprocessor took 62.89 ms. Allocated memory is still 151.0 MB. Free memory was 101.9 MB in the beginning and 99.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:29,242 INFO L168 Benchmark]: RCFGBuilder took 879.09 ms. Allocated memory is still 151.0 MB. Free memory was 99.4 MB in the beginning and 94.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:29,243 INFO L168 Benchmark]: TraceAbstraction took 26451.75 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 93.7 MB in the beginning and 93.0 MB in the end (delta: 730.2 kB). Peak memory consumption was 67.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:29,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 256.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 635.76 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 102.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.89 ms. Allocated memory is still 151.0 MB. Free memory was 101.9 MB in the beginning and 99.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 879.09 ms. Allocated memory is still 151.0 MB. Free memory was 99.4 MB in the beginning and 94.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26451.75 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 93.7 MB in the beginning and 93.0 MB in the end (delta: 730.2 kB). Peak memory consumption was 67.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...