/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:00:28,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:00:28,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:00:28,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 01:00:28,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 01:00:28,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 01:00:28,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 01:00:28,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 01:00:28,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 01:00:28,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 01:00:28,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 01:00:28,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 01:00:28,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:00:28,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:00:28,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:00:28,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:00:28,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:00:28,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:00:28,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:00:28,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:00:28,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:00:28,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:00:28,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:00:28,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:00:28,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 01:00:28,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 01:00:28,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 01:00:28,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 01:00:28,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 01:00:28,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 01:00:28,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 01:00:28,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 01:00:28,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 01:00:28,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 01:00:28,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 01:00:28,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 01:00:28,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 01:00:28,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 01:00:28,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:00:28,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:00:28,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:00:28,667 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:00:28,691 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:00:28,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:00:28,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:00:28,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:00:28,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:00:28,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:00:28,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:00:28,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:00:28,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:00:28,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:00:28,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:00:28,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:00:28,698 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:00:28,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:00:28,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:00:28,698 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:00:28,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:00:28,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:00:28,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:00:28,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:00:28,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:00:28,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:00:28,700 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:00:29,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:00:29,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:00:29,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:00:29,140 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:00:29,141 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:00:29,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-10-24 01:00:29,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cb49b25e/c502f359c52743eab90ce5f4c8b30f1d/FLAG422f252c3 [2020-10-24 01:00:30,073 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:00:30,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-10-24 01:00:30,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cb49b25e/c502f359c52743eab90ce5f4c8b30f1d/FLAG422f252c3 [2020-10-24 01:00:30,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cb49b25e/c502f359c52743eab90ce5f4c8b30f1d [2020-10-24 01:00:30,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:00:30,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:00:30,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:00:30,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:00:30,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:00:30,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:00:30" (1/1) ... [2020-10-24 01:00:30,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f6adc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:30, skipping insertion in model container [2020-10-24 01:00:30,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:00:30" (1/1) ... [2020-10-24 01:00:30,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:00:30,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:00:30,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:00:30,842 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:00:30,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:00:31,012 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:00:31,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31 WrapperNode [2020-10-24 01:00:31,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:00:31,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:00:31,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:00:31,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:00:31,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31" (1/1) ... [2020-10-24 01:00:31,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31" (1/1) ... [2020-10-24 01:00:31,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31" (1/1) ... [2020-10-24 01:00:31,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31" (1/1) ... [2020-10-24 01:00:31,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31" (1/1) ... [2020-10-24 01:00:31,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31" (1/1) ... [2020-10-24 01:00:31,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31" (1/1) ... [2020-10-24 01:00:31,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:00:31,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:00:31,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:00:31,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:00:31,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31" (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 [2020-10-24 01:00:31,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:00:31,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:00:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-24 01:00:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:00:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-24 01:00:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-24 01:00:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-24 01:00:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-10-24 01:00:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-10-24 01:00:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-10-24 01:00:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-10-24 01:00:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-10-24 01:00:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-10-24 01:00:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-10-24 01:00:31,184 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-10-24 01:00:31,184 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-10-24 01:00:31,184 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-10-24 01:00:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-10-24 01:00:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-10-24 01:00:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-10-24 01:00:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-10-24 01:00:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-10-24 01:00:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:00:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:00:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:00:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-24 01:00:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-24 01:00:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:00:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:00:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-24 01:00:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-24 01:00:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-24 01:00:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-24 01:00:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-24 01:00:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-24 01:00:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-24 01:00:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-24 01:00:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-24 01:00:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-24 01:00:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-24 01:00:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-24 01:00:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-24 01:00:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-24 01:00:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-24 01:00:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-24 01:00:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-24 01:00:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-24 01:00:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-24 01:00:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-24 01:00:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-24 01:00:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-24 01:00:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-24 01:00:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-24 01:00:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-24 01:00:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-24 01:00:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-24 01:00:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-24 01:00:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-24 01:00:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-24 01:00:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-24 01:00:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-24 01:00:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-24 01:00:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-24 01:00:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-24 01:00:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-24 01:00:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-24 01:00:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-24 01:00:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-24 01:00:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-24 01:00:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-24 01:00:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-24 01:00:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-24 01:00:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-24 01:00:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-24 01:00:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-24 01:00:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-24 01:00:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-24 01:00:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-24 01:00:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-24 01:00:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-24 01:00:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-24 01:00:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-24 01:00:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-24 01:00:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-24 01:00:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-24 01:00:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-24 01:00:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-24 01:00:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-24 01:00:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-24 01:00:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-24 01:00:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-24 01:00:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-24 01:00:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-24 01:00:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 01:00:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-24 01:00:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-24 01:00:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-24 01:00:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-24 01:00:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-24 01:00:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-24 01:00:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-24 01:00:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-24 01:00:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-24 01:00:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-24 01:00:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-24 01:00:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-24 01:00:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-24 01:00:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-24 01:00:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-24 01:00:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-24 01:00:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-24 01:00:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-24 01:00:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-24 01:00:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-24 01:00:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-24 01:00:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-24 01:00:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-24 01:00:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-24 01:00:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-24 01:00:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-24 01:00:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-24 01:00:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-24 01:00:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-24 01:00:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-24 01:00:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-24 01:00:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-24 01:00:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-24 01:00:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-24 01:00:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-24 01:00:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-24 01:00:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-24 01:00:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-24 01:00:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-24 01:00:31,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:00:31,215 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-24 01:00:31,215 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-10-24 01:00:31,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-24 01:00:31,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-24 01:00:31,216 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-10-24 01:00:31,216 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-10-24 01:00:31,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-24 01:00:31,216 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-10-24 01:00:31,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-24 01:00:31,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-24 01:00:31,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:00:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-10-24 01:00:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-10-24 01:00:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-10-24 01:00:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-10-24 01:00:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-10-24 01:00:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-10-24 01:00:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-10-24 01:00:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-10-24 01:00:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-10-24 01:00:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-10-24 01:00:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-10-24 01:00:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:00:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:00:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:00:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:00:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:00:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:00:32,121 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:00:32,122 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-10-24 01:00:32,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:00:32 BoogieIcfgContainer [2020-10-24 01:00:32,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:00:32,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:00:32,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:00:32,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:00:32,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:00:30" (1/3) ... [2020-10-24 01:00:32,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a8e961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:00:32, skipping insertion in model container [2020-10-24 01:00:32,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:31" (2/3) ... [2020-10-24 01:00:32,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a8e961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:00:32, skipping insertion in model container [2020-10-24 01:00:32,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:00:32" (3/3) ... [2020-10-24 01:00:32,132 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-10-24 01:00:32,144 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:00:32,150 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:00:32,163 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:00:32,187 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:00:32,187 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:00:32,187 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:00:32,187 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:00:32,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:00:32,188 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:00:32,188 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:00:32,188 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:00:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2020-10-24 01:00:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-24 01:00:32,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:00:32,224 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:00:32,225 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:00:32,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:00:32,231 INFO L82 PathProgramCache]: Analyzing trace with hash 460633146, now seen corresponding path program 1 times [2020-10-24 01:00:32,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:00:32,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69894429] [2020-10-24 01:00:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:00:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:00:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-24 01:00:32,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69894429] [2020-10-24 01:00:32,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:00:32,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 01:00:32,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104624356] [2020-10-24 01:00:32,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 01:00:32,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:00:32,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 01:00:32,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 01:00:32,931 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2020-10-24 01:00:33,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:00:33,602 INFO L93 Difference]: Finished difference Result 580 states and 782 transitions. [2020-10-24 01:00:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:00:33,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2020-10-24 01:00:33,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:00:33,618 INFO L225 Difference]: With dead ends: 580 [2020-10-24 01:00:33,618 INFO L226 Difference]: Without dead ends: 281 [2020-10-24 01:00:33,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:00:33,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-24 01:00:33,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2020-10-24 01:00:33,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-24 01:00:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 290 transitions. [2020-10-24 01:00:33,760 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 290 transitions. Word has length 91 [2020-10-24 01:00:33,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:00:33,761 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 290 transitions. [2020-10-24 01:00:33,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 01:00:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 290 transitions. [2020-10-24 01:00:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-24 01:00:33,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:00:33,766 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:00:33,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:00:33,767 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:00:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:00:33,767 INFO L82 PathProgramCache]: Analyzing trace with hash -409331855, now seen corresponding path program 1 times [2020-10-24 01:00:33,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:00:33,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021907468] [2020-10-24 01:00:33,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:00:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:33,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:33,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:00:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:33,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:34,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:34,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:34,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:34,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:34,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:34,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:34,319 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-24 01:00:34,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021907468] [2020-10-24 01:00:34,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:00:34,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-24 01:00:34,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100646963] [2020-10-24 01:00:34,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-24 01:00:34,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:00:34,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-24 01:00:34,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-24 01:00:34,328 INFO L87 Difference]: Start difference. First operand 261 states and 290 transitions. Second operand 13 states. [2020-10-24 01:00:36,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:00:36,639 INFO L93 Difference]: Finished difference Result 550 states and 629 transitions. [2020-10-24 01:00:36,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:00:36,640 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2020-10-24 01:00:36,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:00:36,645 INFO L225 Difference]: With dead ends: 550 [2020-10-24 01:00:36,647 INFO L226 Difference]: Without dead ends: 302 [2020-10-24 01:00:36,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-10-24 01:00:36,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-24 01:00:36,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 282. [2020-10-24 01:00:36,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-24 01:00:36,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 313 transitions. [2020-10-24 01:00:36,725 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 313 transitions. Word has length 93 [2020-10-24 01:00:36,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:00:36,728 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 313 transitions. [2020-10-24 01:00:36,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-24 01:00:36,728 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 313 transitions. [2020-10-24 01:00:36,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-24 01:00:36,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:00:36,744 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:00:36,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:00:36,745 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:00:36,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:00:36,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1433981389, now seen corresponding path program 1 times [2020-10-24 01:00:36,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:00:36,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881246075] [2020-10-24 01:00:36,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:00:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:00:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:00:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:37,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-24 01:00:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:00:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:38,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:39,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 141 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-24 01:00:39,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881246075] [2020-10-24 01:00:39,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:00:39,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-24 01:00:39,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650324851] [2020-10-24 01:00:39,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-24 01:00:39,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:00:39,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-24 01:00:39,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1392, Unknown=0, NotChecked=0, Total=1482 [2020-10-24 01:00:39,734 INFO L87 Difference]: Start difference. First operand 282 states and 313 transitions. Second operand 39 states. [2020-10-24 01:00:47,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:00:47,905 INFO L93 Difference]: Finished difference Result 582 states and 663 transitions. [2020-10-24 01:00:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-24 01:00:47,910 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 241 [2020-10-24 01:00:47,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:00:47,915 INFO L225 Difference]: With dead ends: 582 [2020-10-24 01:00:47,915 INFO L226 Difference]: Without dead ends: 317 [2020-10-24 01:00:47,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=327, Invalid=4785, Unknown=0, NotChecked=0, Total=5112 [2020-10-24 01:00:47,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-24 01:00:47,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 292. [2020-10-24 01:00:47,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-24 01:00:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 325 transitions. [2020-10-24 01:00:47,982 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 325 transitions. Word has length 241 [2020-10-24 01:00:47,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:00:47,984 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 325 transitions. [2020-10-24 01:00:47,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-24 01:00:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 325 transitions. [2020-10-24 01:00:47,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-24 01:00:47,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:00:47,989 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:00:47,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:00:47,989 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:00:47,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:00:47,990 INFO L82 PathProgramCache]: Analyzing trace with hash 820570067, now seen corresponding path program 1 times [2020-10-24 01:00:47,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:00:47,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893809827] [2020-10-24 01:00:47,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:00:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:00:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:00:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 01:00:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:00:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 38 proven. 38 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2020-10-24 01:00:50,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893809827] [2020-10-24 01:00:50,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:00:50,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-24 01:00:50,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880414051] [2020-10-24 01:00:50,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-24 01:00:50,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:00:50,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-24 01:00:50,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2020-10-24 01:00:50,315 INFO L87 Difference]: Start difference. First operand 292 states and 325 transitions. Second operand 32 states. [2020-10-24 01:00:51,844 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-10-24 01:00:52,238 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-24 01:00:52,478 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-24 01:00:52,673 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-24 01:00:57,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:00:57,776 INFO L93 Difference]: Finished difference Result 596 states and 671 transitions. [2020-10-24 01:00:57,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-24 01:00:57,777 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 243 [2020-10-24 01:00:57,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:00:57,782 INFO L225 Difference]: With dead ends: 596 [2020-10-24 01:00:57,782 INFO L226 Difference]: Without dead ends: 323 [2020-10-24 01:00:57,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=256, Invalid=2824, Unknown=0, NotChecked=0, Total=3080 [2020-10-24 01:00:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-24 01:00:57,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 301. [2020-10-24 01:00:57,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-10-24 01:00:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 335 transitions. [2020-10-24 01:00:57,836 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 335 transitions. Word has length 243 [2020-10-24 01:00:57,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:00:57,837 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 335 transitions. [2020-10-24 01:00:57,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-24 01:00:57,837 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 335 transitions. [2020-10-24 01:00:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-24 01:00:57,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:00:57,841 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:00:57,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:00:57,841 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:00:57,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:00:57,842 INFO L82 PathProgramCache]: Analyzing trace with hash -863754643, now seen corresponding path program 1 times [2020-10-24 01:00:57,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:00:57,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931777444] [2020-10-24 01:00:57,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:00:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:57,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:58,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:00:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:58,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:58,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:58,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:58,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,316 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-24 01:00:59,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 01:00:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-24 01:00:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 01:00:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 25 proven. 40 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-10-24 01:01:00,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931777444] [2020-10-24 01:01:00,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:01:00,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-24 01:01:00,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521499592] [2020-10-24 01:01:00,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-24 01:01:00,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:01:00,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-24 01:01:00,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2020-10-24 01:01:00,028 INFO L87 Difference]: Start difference. First operand 301 states and 335 transitions. Second operand 23 states. [2020-10-24 01:01:00,523 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-24 01:01:00,936 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-24 01:01:02,138 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-10-24 01:01:02,941 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-24 01:01:03,740 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-10-24 01:01:04,279 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-24 01:01:08,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:01:08,456 INFO L93 Difference]: Finished difference Result 600 states and 669 transitions. [2020-10-24 01:01:08,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-24 01:01:08,457 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 245 [2020-10-24 01:01:08,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:01:08,461 INFO L225 Difference]: With dead ends: 600 [2020-10-24 01:01:08,461 INFO L226 Difference]: Without dead ends: 321 [2020-10-24 01:01:08,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2020-10-24 01:01:08,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-24 01:01:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 301. [2020-10-24 01:01:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-10-24 01:01:08,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 333 transitions. [2020-10-24 01:01:08,504 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 333 transitions. Word has length 245 [2020-10-24 01:01:08,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:01:08,505 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 333 transitions. [2020-10-24 01:01:08,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-24 01:01:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 333 transitions. [2020-10-24 01:01:08,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-24 01:01:08,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:01:08,508 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:01:08,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:01:08,509 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:01:08,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:01:08,510 INFO L82 PathProgramCache]: Analyzing trace with hash 791701158, now seen corresponding path program 1 times [2020-10-24 01:01:08,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:01:08,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784023107] [2020-10-24 01:01:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:01:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:01:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:01:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 01:01:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 01:01:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:10,142 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-10-24 01:01:10,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784023107] [2020-10-24 01:01:10,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:01:10,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-24 01:01:10,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580326421] [2020-10-24 01:01:10,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-24 01:01:10,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:01:10,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-24 01:01:10,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-10-24 01:01:10,145 INFO L87 Difference]: Start difference. First operand 301 states and 333 transitions. Second operand 24 states. [2020-10-24 01:01:14,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:01:14,904 INFO L93 Difference]: Finished difference Result 535 states and 600 transitions. [2020-10-24 01:01:14,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-24 01:01:14,905 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 244 [2020-10-24 01:01:14,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:01:14,909 INFO L225 Difference]: With dead ends: 535 [2020-10-24 01:01:14,909 INFO L226 Difference]: Without dead ends: 423 [2020-10-24 01:01:14,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2020-10-24 01:01:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-10-24 01:01:14,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 338. [2020-10-24 01:01:14,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-24 01:01:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 375 transitions. [2020-10-24 01:01:14,957 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 375 transitions. Word has length 244 [2020-10-24 01:01:14,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:01:14,958 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 375 transitions. [2020-10-24 01:01:14,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-24 01:01:14,958 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 375 transitions. [2020-10-24 01:01:14,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-24 01:01:14,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:01:14,962 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:01:14,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:01:14,962 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:01:14,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:01:14,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1636205355, now seen corresponding path program 1 times [2020-10-24 01:01:14,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:01:14,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783114340] [2020-10-24 01:01:14,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:01:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:01:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:01:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:15,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-24 01:01:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-24 01:01:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 01:01:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-24 01:01:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 17 proven. 101 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-24 01:01:16,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783114340] [2020-10-24 01:01:16,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:01:16,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-24 01:01:16,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471522642] [2020-10-24 01:01:16,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-24 01:01:16,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:01:16,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-24 01:01:16,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-24 01:01:16,597 INFO L87 Difference]: Start difference. First operand 338 states and 375 transitions. Second operand 17 states. [2020-10-24 01:01:17,738 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-10-24 01:01:18,050 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-10-24 01:01:18,368 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-24 01:01:18,619 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-10-24 01:01:21,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:01:21,528 INFO L93 Difference]: Finished difference Result 676 states and 760 transitions. [2020-10-24 01:01:21,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-24 01:01:21,529 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 250 [2020-10-24 01:01:21,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:01:21,532 INFO L225 Difference]: With dead ends: 676 [2020-10-24 01:01:21,532 INFO L226 Difference]: Without dead ends: 358 [2020-10-24 01:01:21,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2020-10-24 01:01:21,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-24 01:01:21,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 338. [2020-10-24 01:01:21,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-24 01:01:21,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 373 transitions. [2020-10-24 01:01:21,576 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 373 transitions. Word has length 250 [2020-10-24 01:01:21,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:01:21,577 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 373 transitions. [2020-10-24 01:01:21,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-24 01:01:21,577 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 373 transitions. [2020-10-24 01:01:21,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-24 01:01:21,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:01:21,581 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:01:21,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:01:21,581 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:01:21,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:01:21,582 INFO L82 PathProgramCache]: Analyzing trace with hash 554881775, now seen corresponding path program 1 times [2020-10-24 01:01:21,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:01:21,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573156409] [2020-10-24 01:01:21,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:01:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:22,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:22,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:01:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:22,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:22,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:22,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:01:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 01:01:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:23,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:24,289 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-10-24 01:01:24,511 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-10-24 01:01:24,827 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-10-24 01:01:25,120 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2020-10-24 01:01:25,356 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-10-24 01:01:25,548 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-10-24 01:01:25,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:26,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 01:01:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:27,140 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-24 01:01:27,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:02:18,573 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 189 DAG size of output: 49