/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSmt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 15:18:50,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-10 15:18:50,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-10 15:18:50,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-10 15:18:50,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-10 15:18:50,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-10 15:18:50,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-10 15:18:50,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-10 15:18:50,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-10 15:18:50,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-10 15:18:50,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-10 15:18:50,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-10 15:18:50,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 15:18:50,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 15:18:50,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 15:18:50,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 15:18:50,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 15:18:50,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 15:18:50,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 15:18:50,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 15:18:50,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 15:18:50,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 15:18:50,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 15:18:50,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 15:18:50,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-10 15:18:50,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-10 15:18:50,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-10 15:18:50,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-10 15:18:50,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-10 15:18:50,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-10 15:18:50,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-10 15:18:50,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-10 15:18:50,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-10 15:18:50,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-10 15:18:50,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-10 15:18:50,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-10 15:18:50,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-10 15:18:50,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-10 15:18:50,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 15:18:50,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 15:18:50,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 15:18:50,113 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSmt.epf [2023-01-10 15:18:50,145 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 15:18:50,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 15:18:50,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 15:18:50,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 15:18:50,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 15:18:50,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 15:18:50,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 15:18:50,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 15:18:50,147 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 15:18:50,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 15:18:50,147 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 15:18:50,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 15:18:50,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 15:18:50,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 15:18:50,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 15:18:50,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 15:18:50,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 15:18:50,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 15:18:50,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 15:18:50,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 15:18:50,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 15:18:50,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 15:18:50,149 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 15:18:50,149 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-01-10 15:18:50,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 15:18:50,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 15:18:50,150 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 15:18:50,150 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 15:18:50,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 15:18:50,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 15:18:50,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 15:18:50,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 15:18:50,404 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 15:18:50,404 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 15:18:50,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2023-01-10 15:18:51,551 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 15:18:51,724 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 15:18:51,725 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2023-01-10 15:18:51,729 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2265c328c/fc7116f354ec449bbf6a44086bb45033/FLAG05edbefc9 [2023-01-10 15:18:51,741 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2265c328c/fc7116f354ec449bbf6a44086bb45033 [2023-01-10 15:18:51,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 15:18:51,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 15:18:51,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 15:18:51,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 15:18:51,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 15:18:51,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:51,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75908f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51, skipping insertion in model container [2023-01-10 15:18:51,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:51,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 15:18:51,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 15:18:51,937 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2023-01-10 15:18:51,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 15:18:51,948 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 15:18:51,964 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2023-01-10 15:18:51,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 15:18:51,976 INFO L208 MainTranslator]: Completed translation [2023-01-10 15:18:51,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51 WrapperNode [2023-01-10 15:18:51,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 15:18:51,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 15:18:51,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 15:18:51,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 15:18:51,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:51,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,003 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2023-01-10 15:18:52,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 15:18:52,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 15:18:52,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 15:18:52,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 15:18:52,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,020 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 15:18:52,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 15:18:52,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 15:18:52,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 15:18:52,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (1/1) ... [2023-01-10 15:18:52,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 15:18:52,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:18:52,054 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) [2023-01-10 15:18:52,056 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 [2023-01-10 15:18:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 15:18:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-10 15:18:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-10 15:18:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-10 15:18:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-10 15:18:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 15:18:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 15:18:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 15:18:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 15:18:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 15:18:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-10 15:18:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 15:18:52,091 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-10 15:18:52,161 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 15:18:52,162 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 15:18:52,280 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 15:18:52,286 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 15:18:52,286 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-10 15:18:52,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:18:52 BoogieIcfgContainer [2023-01-10 15:18:52,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 15:18:52,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 15:18:52,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 15:18:52,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 15:18:52,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:18:51" (1/3) ... [2023-01-10 15:18:52,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fe27df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:18:52, skipping insertion in model container [2023-01-10 15:18:52,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:18:51" (2/3) ... [2023-01-10 15:18:52,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fe27df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:18:52, skipping insertion in model container [2023-01-10 15:18:52,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:18:52" (3/3) ... [2023-01-10 15:18:52,294 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp1x3.wvr.c [2023-01-10 15:18:52,301 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 15:18:52,308 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 15:18:52,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-10 15:18:52,309 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 15:18:52,366 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-10 15:18:52,404 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 15:18:52,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 15:18:52,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:18:52,409 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) [2023-01-10 15:18:52,412 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 [2023-01-10 15:18:52,452 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 15:18:52,457 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-10 15:18:52,462 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;@74a1601b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 15:18:52,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 15:18:52,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:18:52,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:18:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash -558263297, now seen corresponding path program 1 times [2023-01-10 15:18:52,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:18:52,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585258883] [2023-01-10 15:18:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:18:52,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:18:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:18:52,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 15:18:52,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:18:52,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585258883] [2023-01-10 15:18:52,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585258883] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 15:18:52,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 15:18:52,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 15:18:52,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834457644] [2023-01-10 15:18:52,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 15:18:52,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 15:18:52,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:18:52,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 15:18:52,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 15:18:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:52,956 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:18:52,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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) [2023-01-10 15:18:52,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:53,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:53,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 15:18:53,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:18:53,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:18:53,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1607375677, now seen corresponding path program 1 times [2023-01-10 15:18:53,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:18:53,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342672188] [2023-01-10 15:18:53,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:18:53,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:18:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:18:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 15:18:53,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:18:53,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342672188] [2023-01-10 15:18:53,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342672188] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 15:18:53,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 15:18:53,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-10 15:18:53,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254353169] [2023-01-10 15:18:53,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 15:18:53,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-10 15:18:53,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:18:53,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-10 15:18:53,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-01-10 15:18:53,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:53,628 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:18:53,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2023-01-10 15:18:53,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:53,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 15:18:53,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-10 15:18:53,796 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:18:53,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:18:53,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1661812960, now seen corresponding path program 1 times [2023-01-10 15:18:53,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:18:53,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562694251] [2023-01-10 15:18:53,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:18:53,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:18:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:18:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 15:18:54,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:18:54,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562694251] [2023-01-10 15:18:54,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562694251] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 15:18:54,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913729838] [2023-01-10 15:18:54,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:18:54,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:18:54,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:18:54,132 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) [2023-01-10 15:18:54,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-10 15:18:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:18:54,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-10 15:18:54,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 15:18:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 15:18:55,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 15:18:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 15:18:55,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913729838] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 15:18:55,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 15:18:55,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2023-01-10 15:18:55,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670061404] [2023-01-10 15:18:55,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 15:18:55,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-01-10 15:18:55,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:18:55,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-01-10 15:18:55,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-01-10 15:18:55,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:55,218 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:18:55,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 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) [2023-01-10 15:18:55,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:55,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 15:18:55,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:18:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 15:18:55,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-10 15:18:55,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-10 15:18:55,827 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,SelfDestructingSolverStorable2 [2023-01-10 15:18:55,828 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:18:55,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:18:55,829 INFO L85 PathProgramCache]: Analyzing trace with hash -827807491, now seen corresponding path program 1 times [2023-01-10 15:18:55,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:18:55,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255637167] [2023-01-10 15:18:55,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:18:55,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:18:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:18:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 15:18:56,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:18:56,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255637167] [2023-01-10 15:18:56,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255637167] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 15:18:56,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310477095] [2023-01-10 15:18:56,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:18:56,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:18:56,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:18:56,469 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) [2023-01-10 15:18:56,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-10 15:18:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:18:56,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 21 conjunts are in the unsatisfiable core [2023-01-10 15:18:56,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 15:19:09,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 15:19:09,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 15:19:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 15:19:16,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310477095] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 15:19:16,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 15:19:16,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2023-01-10 15:19:16,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073527150] [2023-01-10 15:19:16,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 15:19:16,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-01-10 15:19:16,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:19:16,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-01-10 15:19:16,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2023-01-10 15:19:16,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:19:16,194 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:19:16,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 26 states have internal predecessors, (109), 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) [2023-01-10 15:19:16,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:19:16,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 15:19:16,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-01-10 15:19:16,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:19:19,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 15:19:21,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 15:19:24,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 15:19:28,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 15:19:30,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 15:19:33,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 15:19:35,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 15:19:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:19:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 15:19:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-10 15:19:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-01-10 15:19:36,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-10 15:19:36,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:19:36,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:19:36,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:19:36,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1287974263, now seen corresponding path program 2 times [2023-01-10 15:19:36,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:19:36,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605760596] [2023-01-10 15:19:36,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:19:36,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:19:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:19:37,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 15:19:37,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:19:37,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605760596] [2023-01-10 15:19:37,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605760596] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 15:19:37,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199581671] [2023-01-10 15:19:37,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 15:19:37,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:19:37,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:19:37,139 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) [2023-01-10 15:19:37,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-10 15:21:18,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 15:21:18,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 15:21:18,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-10 15:21:18,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-01-10 15:33:27,850 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 [2023-01-10 15:33:27,850 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 15:33:27,850 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 [2023-01-10 15:33:28,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-01-10 15:33:28,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2023-01-10 15:33:28,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown