/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder-VarAbsGlobalSmt.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-16 18:08:02,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 18:08:02,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 18:08:02,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 18:08:02,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 18:08:02,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 18:08:02,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 18:08:02,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 18:08:02,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 18:08:02,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 18:08:02,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 18:08:02,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 18:08:02,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 18:08:02,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 18:08:02,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 18:08:02,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 18:08:02,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 18:08:02,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 18:08:02,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 18:08:02,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 18:08:02,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 18:08:02,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 18:08:02,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 18:08:02,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 18:08:02,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 18:08:02,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 18:08:02,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 18:08:02,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 18:08:02,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 18:08:02,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 18:08:02,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 18:08:02,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 18:08:02,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 18:08:02,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 18:08:02,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 18:08:02,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 18:08:02,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 18:08:02,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 18:08:02,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 18:08:02,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 18:08:02,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 18:08:02,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder-VarAbsGlobalSmt.epf [2022-11-16 18:08:02,197 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 18:08:02,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 18:08:02,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 18:08:02,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 18:08:02,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 18:08:02,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 18:08:02,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 18:08:02,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 18:08:02,200 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 18:08:02,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 18:08:02,200 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 18:08:02,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 18:08:02,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 18:08:02,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 18:08:02,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 18:08:02,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 18:08:02,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 18:08:02,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 18:08:02,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 18:08:02,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 18:08:02,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 18:08:02,202 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 18:08:02,202 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-16 18:08:02,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 18:08:02,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 18:08:02,202 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 18:08:02,203 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 18:08:02,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP [2022-11-16 18:08:02,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 18:08:02,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 18:08:02,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 18:08:02,405 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 18:08:02,406 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 18:08:02,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2022-11-16 18:08:02,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba502bce/247a81a9abcb403bb3d4ac5332295c49/FLAG203fd2413 [2022-11-16 18:08:02,832 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 18:08:02,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2022-11-16 18:08:02,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba502bce/247a81a9abcb403bb3d4ac5332295c49/FLAG203fd2413 [2022-11-16 18:08:02,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba502bce/247a81a9abcb403bb3d4ac5332295c49 [2022-11-16 18:08:02,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 18:08:02,850 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 18:08:02,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 18:08:02,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 18:08:02,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 18:08:02,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:08:02" (1/1) ... [2022-11-16 18:08:02,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e01301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:02, skipping insertion in model container [2022-11-16 18:08:02,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:08:02" (1/1) ... [2022-11-16 18:08:02,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 18:08:02,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 18:08:03,005 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2022-11-16 18:08:03,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 18:08:03,016 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 18:08:03,031 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2022-11-16 18:08:03,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 18:08:03,042 INFO L208 MainTranslator]: Completed translation [2022-11-16 18:08:03,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03 WrapperNode [2022-11-16 18:08:03,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 18:08:03,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 18:08:03,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 18:08:03,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 18:08:03,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,077 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 193 [2022-11-16 18:08:03,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 18:08:03,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 18:08:03,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 18:08:03,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 18:08:03,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,103 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 18:08:03,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 18:08:03,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 18:08:03,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 18:08:03,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (1/1) ... [2022-11-16 18:08:03,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 18:08:03,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 18:08:03,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 18:08:03,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 18:08:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 18:08:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 18:08:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 18:08:03,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 18:08:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 18:08:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 18:08:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 18:08:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 18:08:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 18:08:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 18:08:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 18:08:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 18:08:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 18:08:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 18:08:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 18:08:03,170 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 18:08:03,239 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 18:08:03,240 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 18:08:03,531 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 18:08:03,539 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 18:08:03,539 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-16 18:08:03,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 06:08:03 BoogieIcfgContainer [2022-11-16 18:08:03,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 18:08:03,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 18:08:03,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 18:08:03,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 18:08:03,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:08:02" (1/3) ... [2022-11-16 18:08:03,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a4b628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:08:03, skipping insertion in model container [2022-11-16 18:08:03,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:08:03" (2/3) ... [2022-11-16 18:08:03,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a4b628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:08:03, skipping insertion in model container [2022-11-16 18:08:03,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 06:08:03" (3/3) ... [2022-11-16 18:08:03,546 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2022-11-16 18:08:03,551 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 18:08:03,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 18:08:03,558 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 18:08:03,558 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 18:08:03,640 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 18:08:03,672 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 18:08:03,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 18:08:03,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 18:08:03,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 18:08:03,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-16 18:08:03,706 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 18:08:03,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-16 18:08:03,719 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;@6aa82454, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 18:08:03,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 18:08:03,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 18:08:03,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 18:08:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1983021672, now seen corresponding path program 1 times [2022-11-16 18:08:03,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 18:08:03,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113052082] [2022-11-16 18:08:03,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 18:08:03,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 18:08:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 18:08:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 18:08:04,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 18:08:04,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113052082] [2022-11-16 18:08:04,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113052082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 18:08:04,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 18:08:04,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 18:08:04,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288266726] [2022-11-16 18:08:04,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 18:08:04,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 18:08:04,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 18:08:04,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 18:08:04,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 18:08:04,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:04,288 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 18:08:04,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 18:08:04,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:04,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:04,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 18:08:04,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 18:08:04,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 18:08:04,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1311414370, now seen corresponding path program 1 times [2022-11-16 18:08:04,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 18:08:04,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120938280] [2022-11-16 18:08:04,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 18:08:04,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 18:08:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 18:08:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 18:08:04,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 18:08:04,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120938280] [2022-11-16 18:08:04,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120938280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 18:08:04,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 18:08:04,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 18:08:04,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041978994] [2022-11-16 18:08:04,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 18:08:04,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 18:08:04,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 18:08:04,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 18:08:04,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 18:08:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:04,915 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 18:08:04,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.0) internal successors, (200), 8 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 18:08:04,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:04,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:06,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:06,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 18:08:06,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 18:08:06,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 18:08:06,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 18:08:06,622 INFO L85 PathProgramCache]: Analyzing trace with hash -840603658, now seen corresponding path program 1 times [2022-11-16 18:08:06,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 18:08:06,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098891434] [2022-11-16 18:08:06,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 18:08:06,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 18:08:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 18:08:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 18:08:06,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 18:08:06,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098891434] [2022-11-16 18:08:06,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098891434] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 18:08:06,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399257573] [2022-11-16 18:08:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 18:08:06,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 18:08:06,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 18:08:06,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 18:08:06,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 18:08:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 18:08:07,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 18:08:07,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 18:08:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 18:08:07,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 18:08:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 18:08:07,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399257573] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 18:08:07,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 18:08:07,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-11-16 18:08:07,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154032783] [2022-11-16 18:08:07,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 18:08:07,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 18:08:07,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 18:08:07,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 18:08:07,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-16 18:08:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:07,519 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 18:08:07,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 18:08:07,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:07,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 18:08:07,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:08,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:08,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 18:08:08,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 18:08:08,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 18:08:08,884 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 [2022-11-16 18:08:08,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 18:08:08,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 18:08:08,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1630143955, now seen corresponding path program 1 times [2022-11-16 18:08:08,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 18:08:08,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562826772] [2022-11-16 18:08:08,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 18:08:08,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 18:08:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 18:08:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 18:08:09,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 18:08:09,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562826772] [2022-11-16 18:08:09,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562826772] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 18:08:09,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234669925] [2022-11-16 18:08:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 18:08:09,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 18:08:09,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 18:08:09,138 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 18:08:09,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 18:08:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 18:08:09,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 18:08:09,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 18:08:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 18:08:09,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 18:08:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 18:08:09,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234669925] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 18:08:09,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 18:08:09,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-11-16 18:08:09,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514163242] [2022-11-16 18:08:09,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 18:08:09,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 18:08:09,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 18:08:09,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 18:08:09,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-11-16 18:08:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:09,745 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 18:08:09,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.88888888888889) internal successors, (233), 9 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 18:08:09,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:09,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 18:08:09,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 18:08:09,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:11,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 18:08:11,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 18:08:11,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 18:08:11,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 18:08:11,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 18:08:11,504 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 [2022-11-16 18:08:11,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-16 18:08:11,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 18:08:11,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1878761988, now seen corresponding path program 1 times [2022-11-16 18:08:11,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 18:08:11,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74091664] [2022-11-16 18:08:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 18:08:11,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 18:08:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 18:08:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 18:08:17,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 18:08:17,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74091664] [2022-11-16 18:08:17,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74091664] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 18:08:17,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537090585] [2022-11-16 18:08:17,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 18:08:17,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 18:08:17,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 18:08:17,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 18:08:17,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 18:08:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 18:08:17,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 144 conjunts are in the unsatisfiable core [2022-11-16 18:08:17,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 18:08:18,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 18:08:19,309 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 18:08:19,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-16 18:08:19,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 18:08:20,314 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-16 18:08:20,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 18:08:20,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 18:08:21,665 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-16 18:08:21,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 25 [2022-11-16 18:08:21,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 18:08:22,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 18:08:23,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 18:08:23,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 18:08:24,077 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 18:08:24,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2022-11-16 18:08:24,824 INFO L321 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2022-11-16 18:08:24,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 58 [2022-11-16 18:08:27,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 18:08:27,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 18:08:27,440 INFO L321 Elim1Store]: treesize reduction 9, result has 57.1 percent of original size [2022-11-16 18:08:27,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 28 [2022-11-16 18:08:27,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 18:08:27,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 18:09:04,458 WARN L833 $PredicateComparison]: unable to prove that (forall ((~C2~0.offset Int) (|ULTIMATE.start_main_~k~0#1| Int) (~M~0 Int) (v_ArrVal_230 (Array Int Int))) (or (<= c_~N~0 |ULTIMATE.start_main_~k~0#1|) (< c_thread2Thread1of1ForFork1_~i~1 ~M~0) (let ((.cse0 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_230))) (store .cse4 c_~C1~0.base (let ((.cse5 (* c_thread1Thread1of1ForFork0_~i~0 4))) (store (select .cse4 c_~C1~0.base) (+ c_~C1~0.offset .cse5) (+ (select (select .cse4 c_~B~0.base) (+ .cse5 c_~B~0.offset)) (select (select .cse4 c_~A~0.base) (+ c_~A~0.offset .cse5))))))))) (let ((.cse1 (let ((.cse3 (* ~M~0 4))) (store (select .cse0 c_~C2~0.base) (+ .cse3 ~C2~0.offset) (+ (select (select .cse0 c_~B~0.base) (+ .cse3 c_~B~0.offset)) (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse3)))))) (.cse2 (* |ULTIMATE.start_main_~k~0#1| 4))) (= (mod (select (select (store .cse0 c_~C2~0.base .cse1) c_~C1~0.base) (+ .cse2 c_~C1~0.offset)) 4294967296) (mod (select .cse1 (+ .cse2 ~C2~0.offset)) 4294967296)))) (< |ULTIMATE.start_main_~k~0#1| 0) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-11-16 18:09:28,139 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 18:09:28,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 958 treesize of output 635 [2022-11-16 18:09:28,160 INFO L173 IndexEqualityManager]: detected equality via solver