/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/popl20-more-min-array.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 13:31:41,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 13:31:41,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 13:31:41,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 13:31:41,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 13:31:41,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 13:31:41,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 13:31:41,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 13:31:41,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 13:31:41,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 13:31:41,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 13:31:41,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 13:31:41,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 13:31:41,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 13:31:41,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 13:31:41,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 13:31:41,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 13:31:41,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 13:31:41,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 13:31:41,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 13:31:41,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 13:31:41,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 13:31:41,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 13:31:41,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 13:31:41,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 13:31:41,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 13:31:41,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 13:31:41,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 13:31:41,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 13:31:41,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 13:31:41,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 13:31:41,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 13:31:41,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 13:31:41,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 13:31:41,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 13:31:41,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 13:31:41,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 13:31:41,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 13:31:41,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 13:31:41,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 13:31:41,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 13:31:41,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-09-16 13:31:41,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 13:31:41,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 13:31:41,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 13:31:41,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 13:31:41,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 13:31:41,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 13:31:41,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 13:31:41,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 13:31:41,629 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 13:31:41,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 13:31:41,629 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 13:31:41,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 13:31:41,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 13:31:41,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 13:31:41,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 13:31:41,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 13:31:41,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 13:31:41,630 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 13:31:41,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 13:31:41,630 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 13:31:41,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 13:31:41,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 13:31:41,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 13:31:41,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 13:31:41,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 13:31:41,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 13:31:41,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 13:31:41,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 13:31:41,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 13:31:41,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 13:31:41,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 13:31:41,632 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 13:31:41,632 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-16 13:31:41,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 13:31:41,632 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-09-16 13:31:41,632 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-09-16 13:31:41,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 13:31:41,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 13:31:41,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 13:31:41,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 13:31:41,833 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 13:31:41,834 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 13:31:41,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-array.wvr.c [2022-09-16 13:31:41,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/568fbb572/0bbad6d6729a40b484bf86492a8ee0e9/FLAG83f21715d [2022-09-16 13:31:42,205 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 13:31:42,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-array.wvr.c [2022-09-16 13:31:42,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/568fbb572/0bbad6d6729a40b484bf86492a8ee0e9/FLAG83f21715d [2022-09-16 13:31:42,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/568fbb572/0bbad6d6729a40b484bf86492a8ee0e9 [2022-09-16 13:31:42,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 13:31:42,629 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 13:31:42,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 13:31:42,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 13:31:42,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 13:31:42,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15851ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42, skipping insertion in model container [2022-09-16 13:31:42,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 13:31:42,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 13:31:42,834 WARN L230 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-min-array.wvr.c[2553,2566] [2022-09-16 13:31:42,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 13:31:42,850 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 13:31:42,882 WARN L230 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-min-array.wvr.c[2553,2566] [2022-09-16 13:31:42,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 13:31:42,894 INFO L208 MainTranslator]: Completed translation [2022-09-16 13:31:42,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42 WrapperNode [2022-09-16 13:31:42,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 13:31:42,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 13:31:42,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 13:31:42,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 13:31:42,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,937 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 103 [2022-09-16 13:31:42,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 13:31:42,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 13:31:42,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 13:31:42,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 13:31:42,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 13:31:42,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 13:31:42,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 13:31:42,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 13:31:42,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (1/1) ... [2022-09-16 13:31:42,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 13:31:42,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:43,002 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) [2022-09-16 13:31:43,013 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 [2022-09-16 13:31:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 13:31:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 13:31:43,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 13:31:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 13:31:43,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 13:31:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 13:31:43,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 13:31:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 13:31:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 13:31:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 13:31:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 13:31:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 13:31:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 13:31:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 13:31:43,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 13:31:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 13:31:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 13:31:43,048 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 13:31:43,114 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 13:31:43,115 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 13:31:43,312 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 13:31:43,383 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 13:31:43,383 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-16 13:31:43,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:31:43 BoogieIcfgContainer [2022-09-16 13:31:43,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 13:31:43,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 13:31:43,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 13:31:43,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 13:31:43,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 01:31:42" (1/3) ... [2022-09-16 13:31:43,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8af180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:31:43, skipping insertion in model container [2022-09-16 13:31:43,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:31:42" (2/3) ... [2022-09-16 13:31:43,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8af180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:31:43, skipping insertion in model container [2022-09-16 13:31:43,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:31:43" (3/3) ... [2022-09-16 13:31:43,394 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array.wvr.c [2022-09-16 13:31:43,400 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 13:31:43,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 13:31:43,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 13:31:43,406 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 13:31:43,471 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 13:31:43,516 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 13:31:43,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-16 13:31:43,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:43,518 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) [2022-09-16 13:31:43,521 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 [2022-09-16 13:31:43,540 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-16 13:31:43,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2022-09-16 13:31:43,552 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;@2f759351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 13:31:43,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-09-16 13:31:43,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:43,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:43,658 INFO L85 PathProgramCache]: Analyzing trace with hash -416696247, now seen corresponding path program 1 times [2022-09-16 13:31:43,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:43,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507935680] [2022-09-16 13:31:43,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:43,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:43,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:43,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:43,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507935680] [2022-09-16 13:31:43,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507935680] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:43,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 13:31:43,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 13:31:43,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453362682] [2022-09-16 13:31:43,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:43,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-16 13:31:43,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:43,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-16 13:31:43,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-16 13:31:43,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:43,845 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:43,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 13:31:43,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:43,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:43,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 13:31:43,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:43,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:43,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1191670954, now seen corresponding path program 1 times [2022-09-16 13:31:43,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:43,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772548465] [2022-09-16 13:31:43,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:43,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:43,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:43,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:43,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772548465] [2022-09-16 13:31:43,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772548465] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:43,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 13:31:43,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 13:31:43,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669616807] [2022-09-16 13:31:43,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:43,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 13:31:43,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:43,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 13:31:43,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 13:31:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:43,951 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:43,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-09-16 13:31:43,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:43,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:44,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 13:31:44,013 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:44,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:44,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1810045335, now seen corresponding path program 1 times [2022-09-16 13:31:44,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:44,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318639891] [2022-09-16 13:31:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:44,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:44,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:44,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318639891] [2022-09-16 13:31:44,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318639891] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:44,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46504495] [2022-09-16 13:31:44,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:44,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:44,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:44,147 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) [2022-09-16 13:31:44,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 13:31:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:44,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 13:31:44,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:44,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:44,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 13:31:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:44,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46504495] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 13:31:44,369 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 13:31:44,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 13:31:44,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723479343] [2022-09-16 13:31:44,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 13:31:44,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 13:31:44,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:44,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 13:31:44,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 13:31:44,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,372 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:44,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 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) [2022-09-16 13:31:44,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:44,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:44,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:44,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-16 13:31:44,659 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 [2022-09-16 13:31:44,660 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:44,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:44,660 INFO L85 PathProgramCache]: Analyzing trace with hash -276830043, now seen corresponding path program 1 times [2022-09-16 13:31:44,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:44,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859574394] [2022-09-16 13:31:44,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:44,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:44,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:44,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:44,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859574394] [2022-09-16 13:31:44,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859574394] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:44,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135718517] [2022-09-16 13:31:44,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:44,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:44,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:44,745 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) [2022-09-16 13:31:44,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 13:31:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:44,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 13:31:44,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:44,858 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:44,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 13:31:44,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135718517] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:44,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 13:31:44,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 13:31:44,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692828988] [2022-09-16 13:31:44,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:44,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 13:31:44,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:44,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 13:31:44,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 13:31:44,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,860 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:44,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 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) [2022-09-16 13:31:44,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:44,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:44,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:44,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 13:31:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:45,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:45,207 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 [2022-09-16 13:31:45,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:45,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash -346541334, now seen corresponding path program 2 times [2022-09-16 13:31:45,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:45,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199552898] [2022-09-16 13:31:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:45,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:45,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:45,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199552898] [2022-09-16 13:31:45,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199552898] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:45,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055199820] [2022-09-16 13:31:45,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 13:31:45,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:45,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:45,331 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) [2022-09-16 13:31:45,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 13:31:45,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 13:31:45,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 13:31:45,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 13:31:45,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-09-16 13:31:45,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 13:31:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-09-16 13:31:45,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055199820] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 13:31:45,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 13:31:45,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2022-09-16 13:31:45,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386563333] [2022-09-16 13:31:45,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 13:31:45,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 13:31:45,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:45,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 13:31:45,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-09-16 13:31:45,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:45,612 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:45,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.866666666666667) internal successors, (163), 16 states have internal predecessors, (163), 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) [2022-09-16 13:31:45,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:45,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:45,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-16 13:31:45,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:45,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 13:31:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 13:31:46,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-09-16 13:31:46,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-09-16 13:31:46,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:46,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:46,802 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-09-16 13:31:46,803 INFO L307 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork0 was SAFE,SAFE (1/4) [2022-09-16 13:31:46,812 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 13:31:46,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-16 13:31:46,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:46,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-16 13:31:46,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-09-16 13:31:46,822 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-16 13:31:46,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-09-16 13:31:46,823 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;@2f759351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 13:31:46,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-09-16 13:31:46,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-16 13:31:46,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:46,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1992889423, now seen corresponding path program 1 times [2022-09-16 13:31:46,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:46,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366912046] [2022-09-16 13:31:46,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:46,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:46,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:46,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:46,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366912046] [2022-09-16 13:31:46,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366912046] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:46,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 13:31:46,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 13:31:46,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014476975] [2022-09-16 13:31:46,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:46,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-16 13:31:46,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:46,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-16 13:31:46,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-16 13:31:46,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:46,982 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:46,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2022-09-16 13:31:46,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 13:31:47,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-16 13:31:47,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:47,003 INFO L85 PathProgramCache]: Analyzing trace with hash 47761478, now seen corresponding path program 1 times [2022-09-16 13:31:47,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:47,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019230621] [2022-09-16 13:31:47,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:47,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:47,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:47,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019230621] [2022-09-16 13:31:47,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019230621] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:47,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 13:31:47,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 13:31:47,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135409062] [2022-09-16 13:31:47,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:47,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 13:31:47,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:47,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 13:31:47,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 13:31:47,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,054 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:47,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-09-16 13:31:47,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:47,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 13:31:47,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-16 13:31:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:47,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1591896996, now seen corresponding path program 1 times [2022-09-16 13:31:47,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:47,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187915860] [2022-09-16 13:31:47,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:47,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:47,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:47,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187915860] [2022-09-16 13:31:47,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187915860] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:47,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726314886] [2022-09-16 13:31:47,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:47,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:47,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:47,150 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 13:31:47,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 13:31:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:47,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 13:31:47,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:47,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 13:31:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:47,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726314886] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 13:31:47,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 13:31:47,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 13:31:47,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429973235] [2022-09-16 13:31:47,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 13:31:47,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 13:31:47,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:47,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 13:31:47,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 13:31:47,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,288 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:47,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 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) [2022-09-16 13:31:47,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:47,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:47,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:47,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:47,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:47,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-16 13:31:47,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:47,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2104166939, now seen corresponding path program 1 times [2022-09-16 13:31:47,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:47,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184026045] [2022-09-16 13:31:47,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:47,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:47,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:47,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:47,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184026045] [2022-09-16 13:31:47,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184026045] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:47,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718313127] [2022-09-16 13:31:47,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:47,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:47,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:47,596 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 13:31:47,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 13:31:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:47,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 13:31:47,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:47,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 13:31:47,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718313127] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:47,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 13:31:47,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 13:31:47,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589903539] [2022-09-16 13:31:47,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:47,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 13:31:47,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:47,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 13:31:47,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 13:31:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,674 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:47,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 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) [2022-09-16 13:31:47,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:47,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:47,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 13:31:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:47,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:48,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:48,044 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-16 13:31:48,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:48,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1437094970, now seen corresponding path program 2 times [2022-09-16 13:31:48,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:48,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558458426] [2022-09-16 13:31:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:48,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:48,119 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:48,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:48,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558458426] [2022-09-16 13:31:48,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558458426] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:48,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895085512] [2022-09-16 13:31:48,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 13:31:48,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:48,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:48,121 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 13:31:48,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 13:31:48,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 13:31:48,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 13:31:48,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 13:31:48,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 13:31:48,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 13:31:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 13:31:48,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895085512] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 13:31:48,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 13:31:48,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 13:31:48,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682515460] [2022-09-16 13:31:48,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 13:31:48,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 13:31:48,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:48,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 13:31:48,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 13:31:48,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:48,362 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:48,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 18 states have internal predecessors, (128), 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) [2022-09-16 13:31:48,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:48,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:48,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-16 13:31:48,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:48,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:48,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 13:31:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-09-16 13:31:48,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2022-09-16 13:31:48,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-09-16 13:31:48,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-09-16 13:31:48,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-09-16 13:31:48,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-09-16 13:31:48,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:48,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-09-16 13:31:48,980 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-09-16 13:31:48,981 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE (2/4) [2022-09-16 13:31:48,982 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 13:31:48,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-16 13:31:48,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:48,984 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-16 13:31:48,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2022-09-16 13:31:48,987 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-16 13:31:48,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork2 ======== [2022-09-16 13:31:48,987 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;@2f759351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 13:31:48,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-09-16 13:31:49,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:49,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:49,020 INFO L85 PathProgramCache]: Analyzing trace with hash -348678066, now seen corresponding path program 1 times [2022-09-16 13:31:49,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:49,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458431774] [2022-09-16 13:31:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:49,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:49,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:49,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458431774] [2022-09-16 13:31:49,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458431774] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:49,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 13:31:49,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 13:31:49,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036899221] [2022-09-16 13:31:49,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:49,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-16 13:31:49,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:49,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-16 13:31:49,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-16 13:31:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,032 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:49,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 13:31:49,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 13:31:49,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:49,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:49,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2119274129, now seen corresponding path program 1 times [2022-09-16 13:31:49,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:49,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933382781] [2022-09-16 13:31:49,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:49,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:49,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:49,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933382781] [2022-09-16 13:31:49,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933382781] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:49,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 13:31:49,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 13:31:49,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540162543] [2022-09-16 13:31:49,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:49,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 13:31:49,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:49,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 13:31:49,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 13:31:49,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,065 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:49,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-09-16 13:31:49,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:49,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 13:31:49,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:49,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:49,081 INFO L85 PathProgramCache]: Analyzing trace with hash -840761546, now seen corresponding path program 1 times [2022-09-16 13:31:49,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:49,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97910491] [2022-09-16 13:31:49,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:49,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:49,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:49,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97910491] [2022-09-16 13:31:49,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97910491] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:49,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61274305] [2022-09-16 13:31:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:49,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:49,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:49,111 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 13:31:49,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 13:31:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:49,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 13:31:49,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:49,240 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-09-16 13:31:49,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 13:31:49,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61274305] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:49,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 13:31:49,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-09-16 13:31:49,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329817100] [2022-09-16 13:31:49,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:49,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 13:31:49,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:49,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 13:31:49,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-16 13:31:49,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,242 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:49,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2022-09-16 13:31:49,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:49,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:49,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:49,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-09-16 13:31:49,499 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:49,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:49,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1610000404, now seen corresponding path program 1 times [2022-09-16 13:31:49,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:49,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470968819] [2022-09-16 13:31:49,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:49,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:49,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 13:31:49,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:49,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470968819] [2022-09-16 13:31:49,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470968819] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:49,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220768597] [2022-09-16 13:31:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:49,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:49,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:49,530 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 13:31:49,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 13:31:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:49,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 13:31:49,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:49,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 13:31:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:49,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220768597] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 13:31:49,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 13:31:49,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2022-09-16 13:31:49,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852790389] [2022-09-16 13:31:49,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 13:31:49,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 13:31:49,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:49,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 13:31:49,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2022-09-16 13:31:49,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,897 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:49,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 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) [2022-09-16 13:31:49,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:49,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:49,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:49,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:50,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 13:31:50,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:50,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-16 13:31:50,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:50,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:50,480 INFO L85 PathProgramCache]: Analyzing trace with hash 684918698, now seen corresponding path program 1 times [2022-09-16 13:31:50,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:50,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913586760] [2022-09-16 13:31:50,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:50,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-09-16 13:31:50,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:50,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913586760] [2022-09-16 13:31:50,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913586760] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:50,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548540650] [2022-09-16 13:31:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:50,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:50,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:50,516 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 13:31:50,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 13:31:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:50,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 13:31:50,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-09-16 13:31:50,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 13:31:50,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548540650] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:50,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 13:31:50,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 13:31:50,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767751494] [2022-09-16 13:31:50,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:50,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 13:31:50,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:50,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 13:31:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 13:31:50,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:50,602 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:50,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 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) [2022-09-16 13:31:50,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:50,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:50,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:50,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-09-16 13:31:50,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:50,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 13:31:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:50,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:50,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-09-16 13:31:50,883 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:50,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:50,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1153031729, now seen corresponding path program 2 times [2022-09-16 13:31:50,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:50,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082359072] [2022-09-16 13:31:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:50,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:51,021 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:51,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:51,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082359072] [2022-09-16 13:31:51,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082359072] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:51,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284025288] [2022-09-16 13:31:51,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 13:31:51,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:51,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:51,027 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 13:31:51,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-16 13:31:51,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 13:31:51,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 13:31:51,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 13:31:51,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 13:31:51,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 13:31:51,302 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 13:31:51,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284025288] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 13:31:51,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 13:31:51,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 19 [2022-09-16 13:31:51,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372613017] [2022-09-16 13:31:51,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 13:31:51,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 13:31:51,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:51,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 13:31:51,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-09-16 13:31:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:51,304 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:51,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.473684210526315) internal successors, (161), 19 states have internal predecessors, (161), 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) [2022-09-16 13:31:51,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:51,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:51,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:51,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-16 13:31:51,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:51,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 13:31:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 13:31:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 13:31:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-09-16 13:31:51,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-09-16 13:31:51,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-09-16 13:31:51,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:52,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-09-16 13:31:52,124 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-09-16 13:31:52,125 INFO L307 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork2 was SAFE,SAFE (3/4) [2022-09-16 13:31:52,126 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 13:31:52,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-16 13:31:52,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:52,128 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-16 13:31:52,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2022-09-16 13:31:52,131 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-16 13:31:52,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread3Thread1of1ForFork1 ======== [2022-09-16 13:31:52,132 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;@2f759351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 13:31:52,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-09-16 13:31:52,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:52,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1805005417, now seen corresponding path program 1 times [2022-09-16 13:31:52,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:52,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548452568] [2022-09-16 13:31:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:52,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:52,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:52,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548452568] [2022-09-16 13:31:52,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548452568] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:52,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 13:31:52,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 13:31:52,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393785290] [2022-09-16 13:31:52,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:52,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-16 13:31:52,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:52,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-16 13:31:52,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-16 13:31:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,187 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:52,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2022-09-16 13:31:52,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-09-16 13:31:52,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash -797744630, now seen corresponding path program 1 times [2022-09-16 13:31:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:52,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847413937] [2022-09-16 13:31:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:52,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:52,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847413937] [2022-09-16 13:31:52,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847413937] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:52,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 13:31:52,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 13:31:52,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3970119] [2022-09-16 13:31:52,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:52,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 13:31:52,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 13:31:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 13:31:52,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,235 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:52,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 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) [2022-09-16 13:31:52,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 13:31:52,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-09-16 13:31:52,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:52,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:52,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1039720754, now seen corresponding path program 1 times [2022-09-16 13:31:52,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:52,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901743509] [2022-09-16 13:31:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:52,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:52,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:52,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901743509] [2022-09-16 13:31:52,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901743509] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:52,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 13:31:52,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 13:31:52,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040346374] [2022-09-16 13:31:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:52,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 13:31:52,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:52,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 13:31:52,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 13:31:52,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,338 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:52,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 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) [2022-09-16 13:31:52,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-16 13:31:52,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 13:31:52,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 13:31:52,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-09-16 13:31:52,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-09-16 13:31:52,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 13:31:52,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1153657876, now seen corresponding path program 1 times [2022-09-16 13:31:52,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 13:31:52,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902471150] [2022-09-16 13:31:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:52,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 13:31:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 13:31:52,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 13:31:52,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902471150] [2022-09-16 13:31:52,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902471150] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 13:31:52,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637109995] [2022-09-16 13:31:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 13:31:52,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:52,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 13:31:52,618 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 13:31:52,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-09-16 13:31:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 13:31:52,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 13:31:52,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 13:31:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 13:31:52,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 13:31:52,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637109995] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 13:31:52,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 13:31:52,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-09-16 13:31:52,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032760941] [2022-09-16 13:31:52,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 13:31:52,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 13:31:52,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 13:31:52,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 13:31:52,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-09-16 13:31:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,765 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-16 13:31:52,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 13:31:52,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-09-16 13:31:52,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-16 13:31:52,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-16 13:31:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 13:31:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 13:31:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 13:31:52,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-09-16 13:31:52,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-09-16 13:31:52,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:53,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 13:31:53,119 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 13:31:53,119 INFO L307 ceAbstractionStarter]: Result for error location thread3Thread1of1ForFork1 was SAFE,SAFE (4/4) [2022-09-16 13:31:53,120 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 13:31:53,120 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 13:31:53,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 01:31:53 BasicIcfg [2022-09-16 13:31:53,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 13:31:53,124 INFO L158 Benchmark]: Toolchain (without parser) took 10494.49ms. Allocated memory was 197.1MB in the beginning and 300.9MB in the end (delta: 103.8MB). Free memory was 136.9MB in the beginning and 143.0MB in the end (delta: -6.0MB). Peak memory consumption was 98.8MB. Max. memory is 8.0GB. [2022-09-16 13:31:53,124 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 197.1MB. Free memory was 153.2MB in the beginning and 153.1MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 13:31:53,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.60ms. Allocated memory was 197.1MB in the beginning and 250.6MB in the end (delta: 53.5MB). Free memory was 136.7MB in the beginning and 220.0MB in the end (delta: -83.3MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2022-09-16 13:31:53,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.74ms. Allocated memory is still 250.6MB. Free memory was 220.0MB in the beginning and 218.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 13:31:53,124 INFO L158 Benchmark]: Boogie Preprocessor took 35.50ms. Allocated memory is still 250.6MB. Free memory was 217.9MB in the beginning and 216.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 13:31:53,124 INFO L158 Benchmark]: RCFGBuilder took 411.25ms. Allocated memory is still 250.6MB. Free memory was 216.5MB in the beginning and 196.9MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-09-16 13:31:53,125 INFO L158 Benchmark]: TraceAbstraction took 9736.78ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 196.2MB in the beginning and 143.0MB in the end (delta: 53.3MB). Peak memory consumption was 104.7MB. Max. memory is 8.0GB. [2022-09-16 13:31:53,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 197.1MB. Free memory was 153.2MB in the beginning and 153.1MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 263.60ms. Allocated memory was 197.1MB in the beginning and 250.6MB in the end (delta: 53.5MB). Free memory was 136.7MB in the beginning and 220.0MB in the end (delta: -83.3MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.74ms. Allocated memory is still 250.6MB. Free memory was 220.0MB in the beginning and 218.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.50ms. Allocated memory is still 250.6MB. Free memory was 217.9MB in the beginning and 216.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 411.25ms. Allocated memory is still 250.6MB. Free memory was 216.5MB in the beginning and 196.9MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 9736.78ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 196.2MB in the beginning and 143.0MB in the end (delta: 53.3MB). Peak memory consumption was 104.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 32589, positive: 29022, positive conditional: 25590, positive unconditional: 3432, negative: 3567, negative conditional: 3550, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29388, positive: 29022, positive conditional: 25590, positive unconditional: 3432, negative: 366, negative conditional: 349, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 29388, positive: 29022, positive conditional: 25590, positive unconditional: 3432, negative: 366, negative conditional: 349, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30375, positive: 29022, positive conditional: 0, positive unconditional: 29022, negative: 1353, negative conditional: 987, negative unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 30375, positive: 29022, positive conditional: 0, positive unconditional: 29022, negative: 1353, negative conditional: 969, negative unconditional: 384, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30375, positive: 29022, positive conditional: 0, positive unconditional: 29022, negative: 1353, negative conditional: 969, negative unconditional: 384, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2663, positive: 2620, positive conditional: 0, positive unconditional: 2620, negative: 43, negative conditional: 26, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2663, positive: 2618, positive conditional: 0, positive unconditional: 2618, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 43, negative conditional: 26, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 140, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 111, negative conditional: 71, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30375, positive: 26402, positive conditional: 0, positive unconditional: 26402, negative: 1310, negative conditional: 943, negative unconditional: 367, unknown: 2663, unknown conditional: 26, unknown unconditional: 2637] , Statistics on independence cache: Total cache size (in pairs): 2663, Positive cache size: 2620, Positive conditional cache size: 0, Positive unconditional cache size: 2620, Negative cache size: 43, Negative conditional cache size: 26, Negative unconditional cache size: 17, Eliminated conditions: 18, Maximal queried relation: 4, Independence queries for same thread: 3201 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 1073, Number of trivial persistent sets: 540, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3449, positive: 3432, positive conditional: 0, positive unconditional: 3432, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 32589, positive: 29022, positive conditional: 25590, positive unconditional: 3432, negative: 3567, negative conditional: 3550, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29388, positive: 29022, positive conditional: 25590, positive unconditional: 3432, negative: 366, negative conditional: 349, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 29388, positive: 29022, positive conditional: 25590, positive unconditional: 3432, negative: 366, negative conditional: 349, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30375, positive: 29022, positive conditional: 0, positive unconditional: 29022, negative: 1353, negative conditional: 987, negative unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 30375, positive: 29022, positive conditional: 0, positive unconditional: 29022, negative: 1353, negative conditional: 969, negative unconditional: 384, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 30375, positive: 29022, positive conditional: 0, positive unconditional: 29022, negative: 1353, negative conditional: 969, negative unconditional: 384, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2663, positive: 2620, positive conditional: 0, positive unconditional: 2620, negative: 43, negative conditional: 26, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2663, positive: 2618, positive conditional: 0, positive unconditional: 2618, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 43, negative conditional: 26, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 140, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 111, negative conditional: 71, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30375, positive: 26402, positive conditional: 0, positive unconditional: 26402, negative: 1310, negative conditional: 943, negative unconditional: 367, unknown: 2663, unknown conditional: 26, unknown unconditional: 2637] , Statistics on independence cache: Total cache size (in pairs): 2663, Positive cache size: 2620, Positive conditional cache size: 0, Positive unconditional cache size: 2620, Negative cache size: 43, Negative conditional cache size: 26, Negative unconditional cache size: 17, Eliminated conditions: 18, Maximal queried relation: 4, Independence queries for same thread: 3201 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11728, positive: 9963, positive conditional: 7761, positive unconditional: 2202, negative: 1765, negative conditional: 1752, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10264, positive: 9963, positive conditional: 7761, positive unconditional: 2202, negative: 301, negative conditional: 288, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10264, positive: 9963, positive conditional: 7761, positive unconditional: 2202, negative: 301, negative conditional: 288, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10824, positive: 9963, positive conditional: 0, positive unconditional: 9963, negative: 861, negative conditional: 560, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10824, positive: 9963, positive conditional: 0, positive unconditional: 9963, negative: 861, negative conditional: 0, negative unconditional: 861, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10824, positive: 9963, positive conditional: 0, positive unconditional: 9963, negative: 861, negative conditional: 0, negative unconditional: 861, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1857, positive: 1844, positive conditional: 0, positive unconditional: 1844, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1857, positive: 1842, positive conditional: 0, positive unconditional: 1842, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10824, positive: 8119, positive conditional: 0, positive unconditional: 8119, negative: 848, negative conditional: 0, negative unconditional: 848, unknown: 1857, unknown conditional: 0, unknown unconditional: 1857] , Statistics on independence cache: Total cache size (in pairs): 1857, Positive cache size: 1844, Positive conditional cache size: 0, Positive unconditional cache size: 1844, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Eliminated conditions: 560, Maximal queried relation: 4, Independence queries for same thread: 1464 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 257, Number of trivial persistent sets: 210, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2215, positive: 2202, positive conditional: 0, positive unconditional: 2202, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11728, positive: 9963, positive conditional: 7761, positive unconditional: 2202, negative: 1765, negative conditional: 1752, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10264, positive: 9963, positive conditional: 7761, positive unconditional: 2202, negative: 301, negative conditional: 288, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10264, positive: 9963, positive conditional: 7761, positive unconditional: 2202, negative: 301, negative conditional: 288, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10824, positive: 9963, positive conditional: 0, positive unconditional: 9963, negative: 861, negative conditional: 560, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10824, positive: 9963, positive conditional: 0, positive unconditional: 9963, negative: 861, negative conditional: 0, negative unconditional: 861, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10824, positive: 9963, positive conditional: 0, positive unconditional: 9963, negative: 861, negative conditional: 0, negative unconditional: 861, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1857, positive: 1844, positive conditional: 0, positive unconditional: 1844, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1857, positive: 1842, positive conditional: 0, positive unconditional: 1842, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10824, positive: 8119, positive conditional: 0, positive unconditional: 8119, negative: 848, negative conditional: 0, negative unconditional: 848, unknown: 1857, unknown conditional: 0, unknown unconditional: 1857] , Statistics on independence cache: Total cache size (in pairs): 1857, Positive cache size: 1844, Positive conditional cache size: 0, Positive unconditional cache size: 1844, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Eliminated conditions: 560, Maximal queried relation: 4, Independence queries for same thread: 1464 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3131, positive: 2890, positive conditional: 967, positive unconditional: 1923, negative: 241, negative conditional: 229, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2934, positive: 2890, positive conditional: 967, positive unconditional: 1923, negative: 44, negative conditional: 32, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2934, positive: 2890, positive conditional: 967, positive unconditional: 1923, negative: 44, negative conditional: 32, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3070, positive: 2890, positive conditional: 0, positive unconditional: 2890, negative: 180, negative conditional: 136, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3070, positive: 2890, positive conditional: 0, positive unconditional: 2890, negative: 180, negative conditional: 75, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3070, positive: 2890, positive conditional: 0, positive unconditional: 2890, negative: 180, negative conditional: 75, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1754, positive: 1722, positive conditional: 0, positive unconditional: 1722, negative: 32, negative conditional: 20, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1754, positive: 1720, positive conditional: 0, positive unconditional: 1720, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 32, negative conditional: 20, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 59, negative conditional: 42, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3070, positive: 1168, positive conditional: 0, positive unconditional: 1168, negative: 148, negative conditional: 55, negative unconditional: 93, unknown: 1754, unknown conditional: 20, unknown unconditional: 1734] , Statistics on independence cache: Total cache size (in pairs): 1754, Positive cache size: 1722, Positive conditional cache size: 0, Positive unconditional cache size: 1722, Negative cache size: 32, Negative conditional cache size: 20, Negative unconditional cache size: 12, Eliminated conditions: 61, Maximal queried relation: 5, Independence queries for same thread: 197 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 122, Number of trivial persistent sets: 90, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1935, positive: 1923, positive conditional: 0, positive unconditional: 1923, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3131, positive: 2890, positive conditional: 967, positive unconditional: 1923, negative: 241, negative conditional: 229, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2934, positive: 2890, positive conditional: 967, positive unconditional: 1923, negative: 44, negative conditional: 32, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2934, positive: 2890, positive conditional: 967, positive unconditional: 1923, negative: 44, negative conditional: 32, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3070, positive: 2890, positive conditional: 0, positive unconditional: 2890, negative: 180, negative conditional: 136, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3070, positive: 2890, positive conditional: 0, positive unconditional: 2890, negative: 180, negative conditional: 75, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3070, positive: 2890, positive conditional: 0, positive unconditional: 2890, negative: 180, negative conditional: 75, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1754, positive: 1722, positive conditional: 0, positive unconditional: 1722, negative: 32, negative conditional: 20, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1754, positive: 1720, positive conditional: 0, positive unconditional: 1720, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 32, negative conditional: 20, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 59, negative conditional: 42, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3070, positive: 1168, positive conditional: 0, positive unconditional: 1168, negative: 148, negative conditional: 55, negative unconditional: 93, unknown: 1754, unknown conditional: 20, unknown unconditional: 1734] , Statistics on independence cache: Total cache size (in pairs): 1754, Positive cache size: 1722, Positive conditional cache size: 0, Positive unconditional cache size: 1722, Negative cache size: 32, Negative conditional cache size: 20, Negative unconditional cache size: 12, Eliminated conditions: 61, Maximal queried relation: 5, Independence queries for same thread: 197 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 23254, positive: 21029, positive conditional: 17562, positive unconditional: 3467, negative: 2225, negative conditional: 2208, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21259, positive: 21029, positive conditional: 17562, positive unconditional: 3467, negative: 230, negative conditional: 213, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 21259, positive: 21029, positive conditional: 17562, positive unconditional: 3467, negative: 230, negative conditional: 213, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21827, positive: 21029, positive conditional: 0, positive unconditional: 21029, negative: 798, negative conditional: 568, negative unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21827, positive: 21029, positive conditional: 0, positive unconditional: 21029, negative: 798, negative conditional: 385, negative unconditional: 413, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21827, positive: 21029, positive conditional: 0, positive unconditional: 21029, negative: 798, negative conditional: 385, negative unconditional: 413, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2643, positive: 2623, positive conditional: 0, positive unconditional: 2623, negative: 20, negative conditional: 3, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2643, positive: 2621, positive conditional: 0, positive unconditional: 2621, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 20, negative conditional: 3, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 40, negative conditional: 8, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21827, positive: 18406, positive conditional: 0, positive unconditional: 18406, negative: 778, negative conditional: 382, negative unconditional: 396, unknown: 2643, unknown conditional: 3, unknown unconditional: 2640] , Statistics on independence cache: Total cache size (in pairs): 2643, Positive cache size: 2623, Positive conditional cache size: 0, Positive unconditional cache size: 2623, Negative cache size: 20, Negative conditional cache size: 3, Negative unconditional cache size: 17, Eliminated conditions: 183, Maximal queried relation: 3, Independence queries for same thread: 1995 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 1219, Number of trivial persistent sets: 656, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3484, positive: 3467, positive conditional: 0, positive unconditional: 3467, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 23254, positive: 21029, positive conditional: 17562, positive unconditional: 3467, negative: 2225, negative conditional: 2208, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21259, positive: 21029, positive conditional: 17562, positive unconditional: 3467, negative: 230, negative conditional: 213, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 21259, positive: 21029, positive conditional: 17562, positive unconditional: 3467, negative: 230, negative conditional: 213, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21827, positive: 21029, positive conditional: 0, positive unconditional: 21029, negative: 798, negative conditional: 568, negative unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21827, positive: 21029, positive conditional: 0, positive unconditional: 21029, negative: 798, negative conditional: 385, negative unconditional: 413, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21827, positive: 21029, positive conditional: 0, positive unconditional: 21029, negative: 798, negative conditional: 385, negative unconditional: 413, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2643, positive: 2623, positive conditional: 0, positive unconditional: 2623, negative: 20, negative conditional: 3, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2643, positive: 2621, positive conditional: 0, positive unconditional: 2621, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 20, negative conditional: 3, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 40, negative conditional: 8, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21827, positive: 18406, positive conditional: 0, positive unconditional: 18406, negative: 778, negative conditional: 382, negative unconditional: 396, unknown: 2643, unknown conditional: 3, unknown unconditional: 2640] , Statistics on independence cache: Total cache size (in pairs): 2643, Positive cache size: 2623, Positive conditional cache size: 0, Positive unconditional cache size: 2623, Negative cache size: 20, Negative conditional cache size: 3, Negative unconditional cache size: 17, Eliminated conditions: 183, Maximal queried relation: 3, Independence queries for same thread: 1995 - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread2Thread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 199 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 681 NumberOfCodeBlocks, 653 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 854 ConstructedInterpolants, 0 QuantifiedInterpolants, 1364 SizeOfPredicates, 10 NumberOfNonLiveVariables, 571 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 97/196 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 199 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 536 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 677 ConstructedInterpolants, 0 QuantifiedInterpolants, 1187 SizeOfPredicates, 12 NumberOfNonLiveVariables, 442 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 123/266 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread1Thread1of1ForFork2 with 1 thread instances CFG has 7 procedures, 199 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 845 NumberOfCodeBlocks, 813 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1017 ConstructedInterpolants, 0 QuantifiedInterpolants, 2185 SizeOfPredicates, 21 NumberOfNonLiveVariables, 745 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 88/133 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread3Thread1of1ForFork1 with 1 thread instances CFG has 7 procedures, 199 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 417 ConstructedInterpolants, 0 QuantifiedInterpolants, 1063 SizeOfPredicates, 3 NumberOfNonLiveVariables, 217 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 13:31:53,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:53,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:53,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Ended with exit code 0 [2022-09-16 13:31:53,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-09-16 13:31:53,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...