/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -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 06:34:05,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 06:34:05,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 06:34:05,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 06:34:05,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 06:34:05,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 06:34:05,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 06:34:05,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 06:34:05,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 06:34:05,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 06:34:05,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 06:34:05,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 06:34:05,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 06:34:05,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 06:34:05,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 06:34:05,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 06:34:05,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 06:34:05,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 06:34:05,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 06:34:05,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 06:34:05,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 06:34:05,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 06:34:05,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 06:34:05,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 06:34:05,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 06:34:05,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 06:34:05,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 06:34:05,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 06:34:05,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 06:34:05,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 06:34:05,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 06:34:05,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 06:34:05,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 06:34:05,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 06:34:05,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 06:34:05,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 06:34:05,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 06:34:05,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 06:34:05,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 06:34:05,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 06:34:05,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 06:34:05,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-16 06:34:06,001 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 06:34:06,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 06:34:06,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 06:34:06,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 06:34:06,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 06:34:06,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 06:34:06,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 06:34:06,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 06:34:06,006 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 06:34:06,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 06:34:06,006 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 06:34:06,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 06:34:06,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 06:34:06,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 06:34:06,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 06:34:06,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 06:34:06,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 06:34:06,007 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 06:34:06,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 06:34:06,008 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 06:34:06,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 06:34:06,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 06:34:06,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 06:34:06,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 06:34:06,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 06:34:06,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 06:34:06,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 06:34:06,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 06:34:06,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 06:34:06,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 06:34:06,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 06:34:06,011 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 06:34:06,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 06:34:06,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 06:34:06,011 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 06:34:06,011 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 06:34:06,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2022-11-16 06:34:06,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 06:34:06,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 06:34:06,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 06:34:06,183 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 06:34:06,184 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 06:34:06,184 INFO L432 ainManager$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 06:34:06,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee7554c8a/3b309bacbcf74e2297bb0dbc8615bc1b/FLAG1bfe6578a [2022-11-16 06:34:06,574 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 06:34:06,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2022-11-16 06:34:06,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee7554c8a/3b309bacbcf74e2297bb0dbc8615bc1b/FLAG1bfe6578a [2022-11-16 06:34:06,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee7554c8a/3b309bacbcf74e2297bb0dbc8615bc1b [2022-11-16 06:34:06,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 06:34:06,596 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 06:34:06,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 06:34:06,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 06:34:06,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 06:34:06,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1542f2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06, skipping insertion in model container [2022-11-16 06:34:06,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 06:34:06,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 06:34:06,854 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 06:34:06,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 06:34:06,875 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 06:34:06,907 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 06:34:06,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 06:34:06,924 INFO L208 MainTranslator]: Completed translation [2022-11-16 06:34:06,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06 WrapperNode [2022-11-16 06:34:06,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 06:34:06,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 06:34:06,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 06:34:06,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 06:34:06,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,967 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 193 [2022-11-16 06:34:06,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 06:34:06,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 06:34:06,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 06:34:06,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 06:34:06,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,996 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:06,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:07,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 06:34:07,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 06:34:07,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 06:34:07,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 06:34:07,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (1/1) ... [2022-11-16 06:34:07,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 06:34:07,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:34:07,038 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 06:34:07,044 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 06:34:07,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 06:34:07,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 06:34:07,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 06:34:07,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 06:34:07,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 06:34:07,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 06:34:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 06:34:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 06:34:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 06:34:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 06:34:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 06:34:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 06:34:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 06:34:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 06:34:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 06:34:07,070 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 06:34:07,140 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 06:34:07,141 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 06:34:07,458 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 06:34:07,465 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 06:34:07,465 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-16 06:34:07,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 06:34:07 BoogieIcfgContainer [2022-11-16 06:34:07,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 06:34:07,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 06:34:07,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 06:34:07,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 06:34:07,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:34:06" (1/3) ... [2022-11-16 06:34:07,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eab41bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:34:07, skipping insertion in model container [2022-11-16 06:34:07,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:34:06" (2/3) ... [2022-11-16 06:34:07,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eab41bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:34:07, skipping insertion in model container [2022-11-16 06:34:07,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 06:34:07" (3/3) ... [2022-11-16 06:34:07,472 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2022-11-16 06:34:07,476 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 06:34:07,482 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 06:34:07,482 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 06:34:07,482 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 06:34:07,543 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 06:34:07,590 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 06:34:07,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 06:34:07,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:34:07,593 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 06:34:07,595 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 06:34:07,628 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 06:34:07,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2022-11-16 06:34:07,646 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;@baf3d69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 06:34:07,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 06:34:07,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:34:07,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:34:07,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1983021672, now seen corresponding path program 1 times [2022-11-16 06:34:07,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:34:07,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917811664] [2022-11-16 06:34:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:34:07,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:34:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:34:08,259 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 06:34:08,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:34:08,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917811664] [2022-11-16 06:34:08,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917811664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 06:34:08,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 06:34:08,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 06:34:08,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680637788] [2022-11-16 06:34:08,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:34:08,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 06:34:08,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:34:08,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 06:34:08,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 06:34:08,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:08,288 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:34:08,289 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 06:34:08,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:08,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:08,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 06:34:08,339 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:34:08,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:34:08,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1311414370, now seen corresponding path program 1 times [2022-11-16 06:34:08,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:34:08,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396400079] [2022-11-16 06:34:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:34:08,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:34:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:34:08,923 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 06:34:08,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:34:08,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396400079] [2022-11-16 06:34:08,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396400079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 06:34:08,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 06:34:08,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 06:34:08,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406458390] [2022-11-16 06:34:08,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:34:08,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 06:34:08,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:34:08,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 06:34:08,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 06:34:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:08,930 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:34:08,930 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 06:34:08,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:08,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:34:11,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 06:34:11,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:34:11,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:34:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash -840603658, now seen corresponding path program 1 times [2022-11-16 06:34:11,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:34:11,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184010903] [2022-11-16 06:34:11,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:34:11,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:34:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:34:12,192 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 06:34:12,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:34:12,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184010903] [2022-11-16 06:34:12,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184010903] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:34:12,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032119142] [2022-11-16 06:34:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:34:12,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:34:12,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:34:12,196 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 06:34:12,197 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 06:34:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:34:12,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 06:34:12,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:34:12,644 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 06:34:12,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:34:12,904 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 06:34:12,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032119142] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 06:34:12,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 06:34:12,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-11-16 06:34:12,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756428468] [2022-11-16 06:34:12,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:34:12,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 06:34:12,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:34:12,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 06:34:12,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-16 06:34:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:12,906 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:34:12,906 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 06:34:12,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:12,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:34:12,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:34:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 06:34:14,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 06:34:15,191 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 06:34:15,191 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:34:15,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:34:15,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1630143955, now seen corresponding path program 1 times [2022-11-16 06:34:15,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:34:15,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840969094] [2022-11-16 06:34:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:34:15,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:34:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:34:15,498 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 06:34:15,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:34:15,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840969094] [2022-11-16 06:34:15,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840969094] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:34:15,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337296665] [2022-11-16 06:34:15,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:34:15,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:34:15,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:34:15,507 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 06:34:15,510 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 06:34:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:34:15,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 06:34:15,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:34:15,961 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 06:34:15,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:34:16,248 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 06:34:16,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337296665] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 06:34:16,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 06:34:16,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2022-11-16 06:34:16,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633467274] [2022-11-16 06:34:16,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 06:34:16,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 06:34:16,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 06:34:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 06:34:16,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-11-16 06:34:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:16,250 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 06:34:16,250 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 06:34:16,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:16,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:34:16,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 06:34:16,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:19,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 06:34:19,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 06:34:19,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 06:34:19,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 06:34:19,382 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 06:34:19,582 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 06:34:19,582 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 06:34:19,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 06:34:19,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1878761988, now seen corresponding path program 1 times [2022-11-16 06:34:19,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 06:34:19,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352332641] [2022-11-16 06:34:19,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:34:19,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 06:34:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:34:25,848 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 06:34:25,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 06:34:25,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352332641] [2022-11-16 06:34:25,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352332641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 06:34:25,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356669634] [2022-11-16 06:34:25,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 06:34:25,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 06:34:25,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 06:34:25,853 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 06:34:25,896 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 06:34:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 06:34:26,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 144 conjunts are in the unsatisfiable core [2022-11-16 06:34:26,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 06:34:26,749 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 06:34:27,853 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 06:34:27,854 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 06:34:28,155 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 06:34:28,860 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-16 06:34:28,860 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 06:34:29,189 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 06:34:30,473 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-16 06:34:30,474 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 06:34:30,900 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 06:34:31,981 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 06:34:32,302 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 06:34:32,604 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 06:34:33,033 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 06:34:33,034 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 06:34:33,842 INFO L321 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2022-11-16 06:34:33,843 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 06:34:36,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 06:34:36,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 06:34:36,707 INFO L321 Elim1Store]: treesize reduction 9, result has 57.1 percent of original size [2022-11-16 06:34:36,708 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 06:34:36,811 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 06:34:36,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 06:35:14,875 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 06:35:44,250 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 06:35:44,251 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 06:35:44,271 INFO L173 IndexEqualityManager]: detected equality via solver