/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/parallel-misc-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 15:55:53,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-10 15:55:53,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-10 15:55:53,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-10 15:55:53,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-10 15:55:53,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-10 15:55:53,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-10 15:55:53,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-10 15:55:53,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-10 15:55:53,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-10 15:55:53,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-10 15:55:53,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-10 15:55:53,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 15:55:53,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 15:55:53,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 15:55:53,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 15:55:53,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 15:55:53,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 15:55:53,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 15:55:53,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 15:55:53,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 15:55:53,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 15:55:53,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 15:55:53,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 15:55:53,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-10 15:55:53,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-10 15:55:53,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-10 15:55:53,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-10 15:55:53,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-10 15:55:53,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-01-10 15:55:53,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 15:55:53,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 15:55:53,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 15:55:53,248 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSmt.epf [2023-01-10 15:55:53,274 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 15:55:53,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 15:55:53,275 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 15:55:53,275 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 15:55:53,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 15:55:53,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 15:55:53,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 15:55:53,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 15:55:53,277 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 15:55:53,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 15:55:53,278 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 15:55:53,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 15:55:53,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 15:55:53,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 15:55:53,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 15:55:53,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 15:55:53,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 15:55:53,279 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 15:55:53,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 15:55:53,280 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 15:55:53,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 15:55:53,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 15:55:53,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 15:55:53,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 15:55:53,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 15:55:53,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 15:55:53,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 15:55:53,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 15:55:53,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 15:55:53,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 15:55:53,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 15:55:53,282 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 15:55:53,282 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-01-10 15:55:53,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 15:55:53,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 15:55:53,283 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 15:55:53,283 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 15:55:53,283 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 15:55:53,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 15:55:53,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 15:55:53,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 15:55:53,549 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 15:55:53,550 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 15:55:53,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c [2023-01-10 15:55:54,594 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 15:55:54,789 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 15:55:54,789 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c [2023-01-10 15:55:54,794 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/773315b56/e4119ddecd3841c4a108126b70791598/FLAGb2d8c43f0 [2023-01-10 15:55:54,805 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/773315b56/e4119ddecd3841c4a108126b70791598 [2023-01-10 15:55:54,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 15:55:54,808 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 15:55:54,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 15:55:54,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 15:55:54,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 15:55:54,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:55:54" (1/1) ... [2023-01-10 15:55:54,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd7298b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:54, skipping insertion in model container [2023-01-10 15:55:54,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:55:54" (1/1) ... [2023-01-10 15:55:54,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 15:55:54,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 15:55:55,028 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/parallel-misc-2.wvr.c[2554,2567] [2023-01-10 15:55:55,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 15:55:55,042 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 15:55:55,076 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/parallel-misc-2.wvr.c[2554,2567] [2023-01-10 15:55:55,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 15:55:55,082 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 15:55:55,083 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 15:55:55,088 INFO L208 MainTranslator]: Completed translation [2023-01-10 15:55:55,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55 WrapperNode [2023-01-10 15:55:55,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 15:55:55,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 15:55:55,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 15:55:55,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 15:55:55,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,134 INFO L138 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-01-10 15:55:55,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 15:55:55,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 15:55:55,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 15:55:55,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 15:55:55,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,164 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 15:55:55,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 15:55:55,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 15:55:55,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 15:55:55,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (1/1) ... [2023-01-10 15:55:55,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 15:55:55,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:55:55,207 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 15:55:55,226 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 15:55:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 15:55:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-10 15:55:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-10 15:55:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-10 15:55:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-10 15:55:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 15:55:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 15:55:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 15:55:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-10 15:55:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-10 15:55:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 15:55:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 15:55:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-10 15:55:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 15:55:55,245 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 15:55:55,343 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 15:55:55,345 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 15:55:55,627 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 15:55:55,645 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 15:55:55,645 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-10 15:55:55,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:55:55 BoogieIcfgContainer [2023-01-10 15:55:55,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 15:55:55,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 15:55:55,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 15:55:55,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 15:55:55,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:55:54" (1/3) ... [2023-01-10 15:55:55,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736fa23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:55:55, skipping insertion in model container [2023-01-10 15:55:55,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:55" (2/3) ... [2023-01-10 15:55:55,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736fa23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:55:55, skipping insertion in model container [2023-01-10 15:55:55,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:55:55" (3/3) ... [2023-01-10 15:55:55,655 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2.wvr.c [2023-01-10 15:55:55,661 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 15:55:55,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 15:55:55,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-10 15:55:55,670 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 15:55:55,735 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-10 15:55:55,783 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 15:55:55,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 15:55:55,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:55:55,789 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 15:55:55,796 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 15:55:55,841 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 15:55:55,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-10 15:55:55,853 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;@a089020, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 15:55:55,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 15:55:56,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:55:56,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:55:56,135 INFO L85 PathProgramCache]: Analyzing trace with hash 654327370, now seen corresponding path program 1 times [2023-01-10 15:55:56,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:55:56,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912502540] [2023-01-10 15:55:56,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:55:56,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:55:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:55:56,347 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 15:55:56,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:55:56,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912502540] [2023-01-10 15:55:56,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912502540] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 15:55:56,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 15:55:56,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 15:55:56,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869574625] [2023-01-10 15:55:56,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 15:55:56,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 15:55:56,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:55:56,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 15:55:56,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 15:55:56,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:56,387 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:55:56,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 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 15:55:56,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:56,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 15:55:56,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:55:56,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:55:56,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2138338244, now seen corresponding path program 1 times [2023-01-10 15:55:56,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:55:56,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056870464] [2023-01-10 15:55:56,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:55:56,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:55:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:55:57,001 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 15:55:57,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:55:57,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056870464] [2023-01-10 15:55:57,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056870464] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 15:55:57,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 15:55:57,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-10 15:55:57,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599926631] [2023-01-10 15:55:57,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 15:55:57,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-10 15:55:57,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:55:57,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-10 15:55:57,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-01-10 15:55:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:57,005 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:55:57,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 15:55:57,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:57,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:57,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:57,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:55:57,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-10 15:55:57,258 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:55:57,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:55:57,258 INFO L85 PathProgramCache]: Analyzing trace with hash -748356765, now seen corresponding path program 1 times [2023-01-10 15:55:57,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:55:57,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793998965] [2023-01-10 15:55:57,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:55:57,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:55:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:55:57,751 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 15:55:57,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:55:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793998965] [2023-01-10 15:55:57,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793998965] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 15:55:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827529082] [2023-01-10 15:55:57,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:55:57,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:55:57,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:55:57,795 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 15:55:57,797 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 15:55:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:55:57,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-10 15:55:57,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 15:55:58,174 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 15:55:58,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 15:55:58,410 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 15:55:58,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827529082] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 15:55:58,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 15:55:58,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 16 [2023-01-10 15:55:58,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992794303] [2023-01-10 15:55:58,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 15:55:58,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-01-10 15:55:58,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:55:58,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-01-10 15:55:58,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-01-10 15:55:58,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:58,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:55:58,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 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 15:55:58,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:58,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:55:58,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:55:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-01-10 15:55:58,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-10 15:55:59,027 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 15:55:59,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:55:59,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:55:59,028 INFO L85 PathProgramCache]: Analyzing trace with hash -72253298, now seen corresponding path program 1 times [2023-01-10 15:55:59,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:55:59,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412947425] [2023-01-10 15:55:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:55:59,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:55:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:55:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 15:55:59,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:55:59,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412947425] [2023-01-10 15:55:59,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412947425] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 15:55:59,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 15:55:59,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-10 15:55:59,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479309548] [2023-01-10 15:55:59,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 15:55:59,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-10 15:55:59,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:55:59,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-10 15:55:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-10 15:55:59,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:59,220 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:55:59,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 15:55:59,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:59,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:55:59,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-01-10 15:55:59,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:59,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:55:59,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:55:59,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-01-10 15:55:59,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:55:59,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-10 15:55:59,254 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:55:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:55:59,255 INFO L85 PathProgramCache]: Analyzing trace with hash 404835887, now seen corresponding path program 1 times [2023-01-10 15:55:59,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:55:59,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482393329] [2023-01-10 15:55:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:55:59,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:55:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:55:59,829 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 15:55:59,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:55:59,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482393329] [2023-01-10 15:55:59,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482393329] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 15:55:59,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285004503] [2023-01-10 15:55:59,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:55:59,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:55:59,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:55:59,832 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 15:55:59,835 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 15:55:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:55:59,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2023-01-10 15:55:59,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 15:56:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-01-10 15:56:00,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 15:56:00,679 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-01-10 15:56:00,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285004503] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 15:56:00,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 15:56:00,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 24 [2023-01-10 15:56:00,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697337727] [2023-01-10 15:56:00,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 15:56:00,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-01-10 15:56:00,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:56:00,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-01-10 15:56:00,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2023-01-10 15:56:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:00,682 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:56:00,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.458333333333333) internal successors, (179), 24 states have internal predecessors, (179), 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 15:56:00,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:00,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:56:00,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-01-10 15:56:00,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:56:00,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:01,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:01,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:56:01,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-01-10 15:56:01,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:56:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 15:56:01,708 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 15:56:01,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:56:01,901 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:56:01,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:56:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash 244332515, now seen corresponding path program 2 times [2023-01-10 15:56:01,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:56:01,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10676944] [2023-01-10 15:56:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:56:01,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:56:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:56:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-01-10 15:56:02,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:56:02,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10676944] [2023-01-10 15:56:02,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10676944] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 15:56:02,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 15:56:02,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-10 15:56:02,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921001876] [2023-01-10 15:56:02,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 15:56:02,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-10 15:56:02,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:56:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-10 15:56:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-10 15:56:02,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:02,085 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:56:02,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 15:56:02,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:02,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:56:02,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-01-10 15:56:02,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:56:02,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 15:56:02,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:56:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-01-10 15:56:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:56:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 15:56:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:56:02,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-10 15:56:02,120 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:56:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:56:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1288366385, now seen corresponding path program 1 times [2023-01-10 15:56:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:56:02,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71025724] [2023-01-10 15:56:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:56:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:56:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:56:03,063 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-01-10 15:56:03,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:56:03,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71025724] [2023-01-10 15:56:03,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71025724] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 15:56:03,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212905358] [2023-01-10 15:56:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:56:03,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:56:03,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:56:03,069 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 15:56:03,071 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 15:56:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:56:03,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 29 conjunts are in the unsatisfiable core [2023-01-10 15:56:03,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 15:56:05,233 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 48 proven. 35 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-10 15:56:05,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 15:56:13,903 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 19 proven. 64 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-10 15:56:13,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212905358] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 15:56:13,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 15:56:13,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 49 [2023-01-10 15:56:13,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243540669] [2023-01-10 15:56:13,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 15:56:13,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-01-10 15:56:13,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 15:56:13,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-01-10 15:56:13,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=2154, Unknown=0, NotChecked=0, Total=2352 [2023-01-10 15:56:13,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:13,907 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 15:56:13,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.36734693877551) internal successors, (263), 49 states have internal predecessors, (263), 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 15:56:13,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:13,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:56:13,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-01-10 15:56:13,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:56:13,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 15:56:13,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:56:13,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:26,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 15:56:26,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 15:56:26,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-01-10 15:56:26,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:56:26,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 15:56:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 15:56:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-01-10 15:56:26,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-10 15:56:27,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:56:27,036 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 15:56:27,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 15:56:27,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2023569553, now seen corresponding path program 2 times [2023-01-10 15:56:27,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 15:56:27,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187157108] [2023-01-10 15:56:27,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 15:56:27,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 15:56:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 15:56:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-01-10 15:56:28,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 15:56:28,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187157108] [2023-01-10 15:56:28,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187157108] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 15:56:28,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130902738] [2023-01-10 15:56:28,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 15:56:28,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 15:56:28,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 15:56:28,309 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) [2023-01-10 15:56:28,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-10 15:56:29,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 15:56:29,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 15:56:29,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 54 conjunts are in the unsatisfiable core [2023-01-10 15:56:29,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 15:56:31,711 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 15:56:31,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:01:43,117 WARN L222 SmtUtils]: Spent 5.00m on a formula simplification. DAG size of input: 4979 DAG size of output: 4948 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-01-10 16:10:11,318 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 16:10:11,318 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 16:10:11,318 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 16:10:12,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-01-10 16:10:12,329 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 16:10:12,331 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown