/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-16 02:49:46,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 02:49:46,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 02:49:46,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 02:49:46,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 02:49:46,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 02:49:46,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 02:49:46,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 02:49:46,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 02:49:46,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 02:49:46,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 02:49:46,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 02:49:46,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 02:49:46,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 02:49:46,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 02:49:46,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 02:49:46,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 02:49:46,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 02:49:46,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 02:49:46,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 02:49:46,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 02:49:46,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 02:49:46,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 02:49:46,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 02:49:46,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 02:49:46,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 02:49:46,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 02:49:46,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 02:49:46,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 02:49:46,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 02:49:46,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 02:49:46,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 02:49:46,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 02:49:46,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 02:49:46,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 02:49:46,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 02:49:46,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 02:49:46,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 02:49:46,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 02:49:46,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 02:49:46,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 02:49:46,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-16 02:49:46,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 02:49:46,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 02:49:46,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 02:49:46,964 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 02:49:46,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 02:49:46,965 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 02:49:46,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 02:49:46,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 02:49:46,965 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 02:49:46,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 02:49:46,965 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 02:49:46,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 02:49:46,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 02:49:46,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 02:49:46,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 02:49:46,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 02:49:46,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 02:49:46,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 02:49:46,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 02:49:46,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 02:49:46,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 02:49:46,969 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 02:49:46,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 02:49:46,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 02:49:46,969 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 02:49:46,969 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 02:49:46,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP [2022-11-16 02:49:47,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 02:49:47,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 02:49:47,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 02:49:47,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 02:49:47,202 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 02:49:47,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2022-11-16 02:49:47,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d7fd62a/c7dbef598bcc49fc97c1b0993185aac9/FLAG7f0a8bf0b [2022-11-16 02:49:47,704 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 02:49:47,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i [2022-11-16 02:49:47,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d7fd62a/c7dbef598bcc49fc97c1b0993185aac9/FLAG7f0a8bf0b [2022-11-16 02:49:48,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d7fd62a/c7dbef598bcc49fc97c1b0993185aac9 [2022-11-16 02:49:48,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 02:49:48,229 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 02:49:48,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 02:49:48,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 02:49:48,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 02:49:48,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7367fd35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48, skipping insertion in model container [2022-11-16 02:49:48,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 02:49:48,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 02:49:48,559 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i[41527,41540] [2022-11-16 02:49:48,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 02:49:48,581 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 02:49:48,603 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i[41527,41540] [2022-11-16 02:49:48,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 02:49:48,644 INFO L208 MainTranslator]: Completed translation [2022-11-16 02:49:48,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48 WrapperNode [2022-11-16 02:49:48,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 02:49:48,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 02:49:48,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 02:49:48,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 02:49:48,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,699 INFO L138 Inliner]: procedures = 277, calls = 41, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 157 [2022-11-16 02:49:48,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 02:49:48,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 02:49:48,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 02:49:48,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 02:49:48,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 02:49:48,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 02:49:48,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 02:49:48,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 02:49:48,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (1/1) ... [2022-11-16 02:49:48,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 02:49:48,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:49:48,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 02:49:48,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 02:49:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-16 02:49:48,831 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-16 02:49:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-16 02:49:48,831 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-16 02:49:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 02:49:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 02:49:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 02:49:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 02:49:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 02:49:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 02:49:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 02:49:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 02:49:48,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 02:49:48,832 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 02:49:48,973 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 02:49:48,975 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 02:49:49,175 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 02:49:49,182 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 02:49:49,182 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 02:49:49,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 02:49:49 BoogieIcfgContainer [2022-11-16 02:49:49,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 02:49:49,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 02:49:49,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 02:49:49,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 02:49:49,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:49:48" (1/3) ... [2022-11-16 02:49:49,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed1eb35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:49:49, skipping insertion in model container [2022-11-16 02:49:49,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:48" (2/3) ... [2022-11-16 02:49:49,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed1eb35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:49:49, skipping insertion in model container [2022-11-16 02:49:49,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 02:49:49" (3/3) ... [2022-11-16 02:49:49,195 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2022-11-16 02:49:49,202 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 02:49:49,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 02:49:49,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 02:49:49,209 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 02:49:49,312 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 02:49:49,343 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 02:49:49,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 02:49:49,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:49:49,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 02:49:49,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-16 02:49:49,380 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 02:49:49,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2022-11-16 02:49:49,400 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b42104a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 02:49:49,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 02:49:49,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:49,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:49,646 INFO L85 PathProgramCache]: Analyzing trace with hash -595544447, now seen corresponding path program 1 times [2022-11-16 02:49:49,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:49,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810116359] [2022-11-16 02:49:49,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:49,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:49:49,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:49,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810116359] [2022-11-16 02:49:49,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810116359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:49:49,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:49:49,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 02:49:49,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288065695] [2022-11-16 02:49:49,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:49:49,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 02:49:49,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:49,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 02:49:49,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 02:49:49,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:49,913 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:49,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:49,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:49,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 02:49:49,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:49,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:49,962 INFO L85 PathProgramCache]: Analyzing trace with hash 375587084, now seen corresponding path program 1 times [2022-11-16 02:49:49,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:49,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774410529] [2022-11-16 02:49:49,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:49,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:49:50,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:50,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774410529] [2022-11-16 02:49:50,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774410529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:49:50,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:49:50,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 02:49:50,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997867248] [2022-11-16 02:49:50,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:49:50,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 02:49:50,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:50,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 02:49:50,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 02:49:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,140 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:50,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:50,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 02:49:50,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:50,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1719130482, now seen corresponding path program 1 times [2022-11-16 02:49:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:50,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102968575] [2022-11-16 02:49:50,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:50,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:49:50,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:50,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102968575] [2022-11-16 02:49:50,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102968575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:49:50,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:49:50,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 02:49:50,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625136388] [2022-11-16 02:49:50,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:49:50,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 02:49:50,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:50,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 02:49:50,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 02:49:50,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,358 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:50,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:50,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:50,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 02:49:50,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:50,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:50,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1374421238, now seen corresponding path program 1 times [2022-11-16 02:49:50,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:50,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312894659] [2022-11-16 02:49:50,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:50,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:49:50,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:50,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312894659] [2022-11-16 02:49:50,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312894659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:49:50,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:49:50,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 02:49:50,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491017121] [2022-11-16 02:49:50,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:49:50,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 02:49:50,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:50,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 02:49:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 02:49:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,612 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:50,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:50,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:50,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 02:49:50,652 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:50,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:50,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1140029566, now seen corresponding path program 1 times [2022-11-16 02:49:50,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:50,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196532174] [2022-11-16 02:49:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:50,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:50,829 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:49:50,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:50,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196532174] [2022-11-16 02:49:50,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196532174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:49:50,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:49:50,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 02:49:50,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081651177] [2022-11-16 02:49:50,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:49:50,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 02:49:50,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:50,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 02:49:50,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 02:49:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,832 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:50,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:50,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:50,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:50,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:50,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 02:49:50,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:50,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:50,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1674617280, now seen corresponding path program 1 times [2022-11-16 02:49:50,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:50,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935318169] [2022-11-16 02:49:50,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:50,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:49:51,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:51,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935318169] [2022-11-16 02:49:51,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935318169] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:49:51,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573758650] [2022-11-16 02:49:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:51,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:51,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:49:51,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:49:51,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 02:49:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:51,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 02:49:51,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:49:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:49:51,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:49:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:49:51,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573758650] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:49:51,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:49:51,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 02:49:51,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855076264] [2022-11-16 02:49:51,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:49:51,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 02:49:51,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:51,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 02:49:51,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 02:49:51,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:51,567 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:51,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:51,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:51,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:51,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:51,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:51,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:51,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:51,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 02:49:51,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 02:49:51,850 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:51,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:51,851 INFO L85 PathProgramCache]: Analyzing trace with hash 870046746, now seen corresponding path program 1 times [2022-11-16 02:49:51,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:51,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016910939] [2022-11-16 02:49:51,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:51,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:52,040 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 130 proven. 44 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:52,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:52,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016910939] [2022-11-16 02:49:52,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016910939] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:49:52,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793286913] [2022-11-16 02:49:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:52,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:52,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:49:52,042 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:49:52,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 02:49:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:52,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 02:49:52,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:49:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-16 02:49:52,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 02:49:52,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793286913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:49:52,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 02:49:52,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2022-11-16 02:49:52,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910175664] [2022-11-16 02:49:52,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:49:52,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 02:49:52,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 02:49:52,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-16 02:49:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:52,307 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:52,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:52,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:52,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:52,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:52,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:52,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:52,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:52,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:52,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:52,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:52,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:52,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 02:49:52,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:52,611 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:52,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:52,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1177739532, now seen corresponding path program 1 times [2022-11-16 02:49:52,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:52,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683247644] [2022-11-16 02:49:52,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:52,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:49:52,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:52,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683247644] [2022-11-16 02:49:52,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683247644] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:49:52,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928447120] [2022-11-16 02:49:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:52,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:52,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:49:52,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:49:52,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 02:49:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:52,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 02:49:52,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:49:53,023 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 02:49:53,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 02:49:53,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928447120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:49:53,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 02:49:53,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 8 [2022-11-16 02:49:53,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898957866] [2022-11-16 02:49:53,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:49:53,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 02:49:53,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:53,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 02:49:53,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 02:49:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:53,040 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:53,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:53,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:53,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:53,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:53,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:53,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:53,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:49:53,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 02:49:53,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:53,306 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:53,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1047344846, now seen corresponding path program 1 times [2022-11-16 02:49:53,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:53,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376239535] [2022-11-16 02:49:53,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 130 proven. 44 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:53,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:53,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376239535] [2022-11-16 02:49:53,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376239535] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:49:53,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883038770] [2022-11-16 02:49:53,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:53,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:53,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:49:53,489 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:49:53,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 02:49:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:53,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 02:49:53,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:49:53,747 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 130 proven. 44 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:53,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:49:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 130 proven. 44 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:53,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883038770] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:49:53,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:49:53,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 02:49:53,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216610691] [2022-11-16 02:49:53,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:49:53,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 02:49:53,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:53,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 02:49:53,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 02:49:53,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:53,875 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:53,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.1) internal successors, (451), 10 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:53,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:53,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:53,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:53,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:53,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:49:53,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:49:53,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:53,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 02:49:54,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:54,179 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:54,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:54,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1404240244, now seen corresponding path program 1 times [2022-11-16 02:49:54,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:54,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990725096] [2022-11-16 02:49:54,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:54,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:54,509 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 180 proven. 34 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-16 02:49:54,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:54,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990725096] [2022-11-16 02:49:54,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990725096] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:49:54,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428905582] [2022-11-16 02:49:54,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:54,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:54,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:49:54,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:49:54,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 02:49:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:54,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 02:49:54,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:49:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 180 proven. 4 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-16 02:49:54,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:49:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 180 proven. 4 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-16 02:49:55,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428905582] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:49:55,010 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:49:55,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 10 [2022-11-16 02:49:55,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7218842] [2022-11-16 02:49:55,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:49:55,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 02:49:55,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:55,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 02:49:55,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-16 02:49:55,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:55,011 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:55,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.5) internal successors, (275), 10 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:55,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:55,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:49:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 02:49:55,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 02:49:55,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:55,344 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:55,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:55,344 INFO L85 PathProgramCache]: Analyzing trace with hash -887540018, now seen corresponding path program 2 times [2022-11-16 02:49:55,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:55,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142547547] [2022-11-16 02:49:55,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:55,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 260 proven. 387 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:55,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:55,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142547547] [2022-11-16 02:49:55,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142547547] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:49:55,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668533507] [2022-11-16 02:49:55,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 02:49:55,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:55,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:49:55,656 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:49:55,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 02:49:55,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 02:49:55,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:49:55,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 02:49:55,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:49:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 260 proven. 387 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:56,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:49:56,353 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 260 proven. 387 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:56,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668533507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:49:56,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:49:56,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 02:49:56,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282401470] [2022-11-16 02:49:56,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:49:56,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 02:49:56,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:56,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 02:49:56,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 02:49:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:56,355 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:56,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 43.94444444444444) internal successors, (791), 18 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-11-16 02:49:56,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:56,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:49:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 02:49:56,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 02:49:56,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 02:49:56,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:56,759 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:49:56,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:49:56,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1619970354, now seen corresponding path program 3 times [2022-11-16 02:49:56,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:49:56,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22956619] [2022-11-16 02:49:56,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:49:56,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:49:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:49:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2635 backedges. 520 proven. 2093 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:57,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:49:57,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22956619] [2022-11-16 02:49:57,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22956619] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:49:57,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820655250] [2022-11-16 02:49:57,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 02:49:57,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:49:57,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:49:57,597 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:49:57,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 02:49:58,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-11-16 02:49:58,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:49:58,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 02:49:58,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:49:58,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2635 backedges. 520 proven. 2093 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:58,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:49:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2635 backedges. 520 proven. 2093 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:49:59,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820655250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:49:59,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:49:59,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-16 02:49:59,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992297256] [2022-11-16 02:49:59,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:49:59,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-16 02:49:59,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:49:59,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-16 02:49:59,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 02:49:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:59,622 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:49:59,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 43.26470588235294) internal successors, (1471), 34 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:49:59,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:49:59,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 02:49:59,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:50:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:50:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:50:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:50:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:50:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:50:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:50:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:50:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:50:00,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:50:00,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 02:50:00,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 02:50:00,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 02:50:00,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 02:50:00,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 02:50:00,338 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:50:00,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:50:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash 874591950, now seen corresponding path program 4 times [2022-11-16 02:50:00,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:50:00,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823864980] [2022-11-16 02:50:00,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:50:00,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:50:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:50:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10647 backedges. 1040 proven. 9585 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:50:02,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:50:02,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823864980] [2022-11-16 02:50:02,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823864980] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:50:02,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059507135] [2022-11-16 02:50:02,900 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 02:50:02,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:50:02,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:50:02,901 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:50:02,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 02:50:06,411 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 02:50:06,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:50:06,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 2629 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-16 02:50:06,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:50:07,702 INFO L134 CoverageAnalysis]: Checked inductivity of 10647 backedges. 1040 proven. 9585 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:50:07,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:50:09,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10647 backedges. 1040 proven. 9585 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:50:09,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059507135] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:50:09,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:50:09,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-16 02:50:09,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598224613] [2022-11-16 02:50:09,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:50:09,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-16 02:50:09,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:50:09,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-16 02:50:09,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-16 02:50:09,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:50:09,792 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:50:09,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 42.89393939393939) internal successors, (2831), 66 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 02:50:09,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:50:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:50:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:50:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:50:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:50:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:50:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:50:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:50:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:50:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:50:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 02:50:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 02:50:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 02:50:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:50:11,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-16 02:50:11,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 02:50:11,782 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:50:11,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:50:11,783 INFO L85 PathProgramCache]: Analyzing trace with hash 226571982, now seen corresponding path program 5 times [2022-11-16 02:50:11,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:50:11,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928576474] [2022-11-16 02:50:11,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:50:11,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:50:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:50:21,600 INFO L134 CoverageAnalysis]: Checked inductivity of 42991 backedges. 2080 proven. 40889 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:50:21,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:50:21,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928576474] [2022-11-16 02:50:21,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928576474] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:50:21,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946836300] [2022-11-16 02:50:21,601 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 02:50:21,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:50:21,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:50:21,602 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:50:21,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 02:51:29,188 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 34 check-sat command(s) [2022-11-16 02:51:29,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:51:29,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 5045 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-16 02:51:29,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:51:31,610 INFO L134 CoverageAnalysis]: Checked inductivity of 42991 backedges. 2080 proven. 40889 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:51:31,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:51:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 42991 backedges. 2080 proven. 40889 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:51:36,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946836300] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:51:36,671 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:51:36,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-16 02:51:36,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317929556] [2022-11-16 02:51:36,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:51:36,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-16 02:51:36,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:51:36,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-16 02:51:36,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-16 02:51:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:51:36,680 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:51:36,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 42.7) internal successors, (5551), 130 states have internal predecessors, (5551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:51:36,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:51:43,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 02:51:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:51:43,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-11-16 02:51:43,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 02:51:44,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 02:51:44,030 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:51:44,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:51:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash -2143209778, now seen corresponding path program 6 times [2022-11-16 02:51:44,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:51:44,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860551287] [2022-11-16 02:51:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:51:44,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:51:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:52:40,223 INFO L134 CoverageAnalysis]: Checked inductivity of 172959 backedges. 4160 proven. 168777 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 02:52:40,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:52:40,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860551287] [2022-11-16 02:52:40,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860551287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:52:40,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156007979] [2022-11-16 02:52:40,224 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 02:52:40,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:52:40,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:52:40,225 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:52:40,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process Received shutdown request... [2022-11-16 03:04:12,917 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-16 03:04:12,917 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-16 03:04:12,918 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-16 03:04:13,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 03:04:13,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-11-16 03:04:14,122 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forcibly destroying the process [2022-11-16 03:04:14,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 137 [2022-11-16 03:04:14,145 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 03:04:14,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-16 03:04:14,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2022-11-16 03:04:14,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588902782] [2022-11-16 03:04:14,145 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-16 03:04:14,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2022-11-16 03:04:14,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 03:04:14,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2022-11-16 03:04:14,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4224, Invalid=12288, Unknown=0, NotChecked=0, Total=16512 [2022-11-16 03:04:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 03:04:14,154 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 03:04:14,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 129 states have (on average 42.63565891472868) internal successors, (5500), 129 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-11-16 03:04:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 03:04:14,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 03:04:14,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 03:04:14,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-11-16 03:04:14,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 03:04:14,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 03:04:14,158 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-11-16 03:04:14,159 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 03:04:14,163 INFO L444 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 03:04:14,164 INFO L307 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was TIMEOUT (1/3) [2022-11-16 03:04:14,165 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 03:04:14,165 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 03:04:14,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:04:14 BasicIcfg [2022-11-16 03:04:14,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 03:04:14,167 INFO L158 Benchmark]: Toolchain (without parser) took 865938.37ms. Allocated memory was 228.6MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 171.1MB in the beginning and 2.3GB in the end (delta: -2.1GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-11-16 03:04:14,167 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 228.6MB. Free memory is still 189.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-11-16 03:04:14,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.29ms. Allocated memory is still 228.6MB. Free memory was 170.9MB in the beginning and 183.4MB in the end (delta: -12.5MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. [2022-11-16 03:04:14,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.41ms. Allocated memory is still 228.6MB. Free memory was 183.4MB in the beginning and 180.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-16 03:04:14,168 INFO L158 Benchmark]: Boogie Preprocessor took 54.39ms. Allocated memory is still 228.6MB. Free memory was 180.8MB in the beginning and 178.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-16 03:04:14,168 INFO L158 Benchmark]: RCFGBuilder took 428.70ms. Allocated memory is still 228.6MB. Free memory was 178.8MB in the beginning and 161.0MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-11-16 03:04:14,168 INFO L158 Benchmark]: TraceAbstraction took 864981.26ms. Allocated memory was 228.6MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 160.4MB in the beginning and 2.3GB in the end (delta: -2.1GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-11-16 03:04:14,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 228.6MB. Free memory is still 189.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 415.29ms. Allocated memory is still 228.6MB. Free memory was 170.9MB in the beginning and 183.4MB in the end (delta: -12.5MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.41ms. Allocated memory is still 228.6MB. Free memory was 183.4MB in the beginning and 180.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.39ms. Allocated memory is still 228.6MB. Free memory was 180.8MB in the beginning and 178.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 428.70ms. Allocated memory is still 228.6MB. Free memory was 178.8MB in the beginning and 161.0MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 864981.26ms. Allocated memory was 228.6MB in the beginning and 3.7GB in the end (delta: 3.5GB). Free memory was 160.4MB in the beginning and 2.3GB in the end (delta: -2.1GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 55940, independent: 35895, independent conditional: 27220, independent unconditional: 8675, dependent: 20045, dependent conditional: 20025, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 27220, independent unconditional: 8675, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 27220, independent unconditional: 8675, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 0, independent unconditional: 35895, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 0, independent unconditional: 35895, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 0, independent unconditional: 35895, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8051, independent: 8031, independent conditional: 0, independent unconditional: 8031, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8051, independent: 8027, independent conditional: 0, independent unconditional: 8027, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 24, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 24, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 148, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 35915, independent: 27864, independent conditional: 0, independent unconditional: 27864, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 8051, unknown conditional: 0, unknown unconditional: 8051] , Statistics on independence cache: Total cache size (in pairs): 8051, Positive cache size: 8031, Positive conditional cache size: 0, Positive unconditional cache size: 8031, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 20025 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 228, Number of trivial persistent sets: 180, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8695, independent: 8675, independent conditional: 0, independent unconditional: 8675, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 55940, independent: 35895, independent conditional: 27220, independent unconditional: 8675, dependent: 20045, dependent conditional: 20025, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 27220, independent unconditional: 8675, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 27220, independent unconditional: 8675, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 0, independent unconditional: 35895, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 0, independent unconditional: 35895, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35915, independent: 35895, independent conditional: 0, independent unconditional: 35895, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8051, independent: 8031, independent conditional: 0, independent unconditional: 8031, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8051, independent: 8027, independent conditional: 0, independent unconditional: 8027, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 24, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 24, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 148, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 35915, independent: 27864, independent conditional: 0, independent unconditional: 27864, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 8051, unknown conditional: 0, unknown unconditional: 8051] , Statistics on independence cache: Total cache size (in pairs): 8051, Positive cache size: 8031, Positive conditional cache size: 0, Positive unconditional cache size: 8031, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 20025 - TimeoutResultAtElement [Line: 940]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 290 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 864.8s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 10.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 414, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 72.6s SatisfiabilityAnalysisTime, 83.9s InterpolantComputationTime, 19063 NumberOfCodeBlocks, 19063 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 25152 ConstructedInterpolants, 0 QuantifiedInterpolants, 69493 SizeOfPredicates, 132 NumberOfNonLiveVariables, 12221 ConjunctsInSsa, 150 ConjunctsInUnsatCore, 31 InterpolantComputations, 7 PerfectInterpolantSequences, 17809/345738 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown