./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 509c3c8c1895397e4c0d03f6462ad0ca0ed3ce99b40d08b775ab8473dba5ee1f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 17:06:12,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 17:06:12,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 17:06:12,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 17:06:12,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 17:06:12,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 17:06:12,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 17:06:12,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 17:06:12,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 17:06:12,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 17:06:12,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 17:06:12,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 17:06:12,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 17:06:12,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 17:06:12,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 17:06:12,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 17:06:12,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 17:06:12,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 17:06:12,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 17:06:12,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 17:06:12,576 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 17:06:12,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 17:06:12,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 17:06:12,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 17:06:12,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 17:06:12,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 17:06:12,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 17:06:12,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 17:06:12,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 17:06:12,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 17:06:12,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 17:06:12,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 17:06:12,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 17:06:12,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 17:06:12,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 17:06:12,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 17:06:12,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 17:06:12,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 17:06:12,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 17:06:12,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 17:06:12,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 17:06:12,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 17:06:12,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2022-04-18 17:06:12,628 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 17:06:12,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 17:06:12,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 17:06:12,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 17:06:12,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 17:06:12,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 17:06:12,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 17:06:12,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 17:06:12,631 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 17:06:12,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 17:06:12,632 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 17:06:12,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 17:06:12,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 17:06:12,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 17:06:12,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 17:06:12,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 17:06:12,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 17:06:12,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 17:06:12,635 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 17:06:12,635 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 17:06:12,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 17:06:12,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 17:06:12,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 17:06:12,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 17:06:12,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 17:06:12,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-18 17:06:12,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 17:06:12,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 17:06:12,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 17:06:12,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 17:06:12,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 17:06:12,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 17:06:12,637 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2022-04-18 17:06:12,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 17:06:12,637 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 17:06:12,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-04-18 17:06:12,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 17:06:12,638 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-04-18 17:06:12,638 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-04-18 17:06:12,638 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 509c3c8c1895397e4c0d03f6462ad0ca0ed3ce99b40d08b775ab8473dba5ee1f [2022-04-18 17:06:12,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 17:06:12,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 17:06:12,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 17:06:12,842 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 17:06:12,842 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 17:06:12,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i [2022-04-18 17:06:12,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6f41315a7/4a5a5ecd1d404da89291e380bc3afdca/FLAGb9f146579 [2022-04-18 17:06:13,347 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 17:06:13,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i [2022-04-18 17:06:13,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6f41315a7/4a5a5ecd1d404da89291e380bc3afdca/FLAGb9f146579 [2022-04-18 17:06:13,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6f41315a7/4a5a5ecd1d404da89291e380bc3afdca [2022-04-18 17:06:13,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 17:06:13,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 17:06:13,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 17:06:13,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 17:06:13,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 17:06:13,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 05:06:13" (1/1) ... [2022-04-18 17:06:13,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324d0d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:13, skipping insertion in model container [2022-04-18 17:06:13,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 05:06:13" (1/1) ... [2022-04-18 17:06:13,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 17:06:13,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 17:06:13,892 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 17:06:14,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39095,39108] [2022-04-18 17:06:14,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39180,39193] [2022-04-18 17:06:14,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39232,39245] [2022-04-18 17:06:14,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49388,49401] [2022-04-18 17:06:14,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49437,49450] [2022-04-18 17:06:14,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49565,49578] [2022-04-18 17:06:14,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49623,49636] [2022-04-18 17:06:14,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 17:06:14,137 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 17:06:14,150 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 17:06:14,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39095,39108] [2022-04-18 17:06:14,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39180,39193] [2022-04-18 17:06:14,178 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[39232,39245] [2022-04-18 17:06:14,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49388,49401] [2022-04-18 17:06:14,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49437,49450] [2022-04-18 17:06:14,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49565,49578] [2022-04-18 17:06:14,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_2w1r-1.i[49623,49636] [2022-04-18 17:06:14,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 17:06:14,250 INFO L208 MainTranslator]: Completed translation [2022-04-18 17:06:14,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14 WrapperNode [2022-04-18 17:06:14,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 17:06:14,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 17:06:14,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 17:06:14,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 17:06:14,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,332 INFO L137 Inliner]: procedures = 310, calls = 70, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 349 [2022-04-18 17:06:14,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 17:06:14,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 17:06:14,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 17:06:14,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 17:06:14,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 17:06:14,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 17:06:14,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 17:06:14,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 17:06:14,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (1/1) ... [2022-04-18 17:06:14,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 17:06:14,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:06:14,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 17:06:14,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 17:06:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-04-18 17:06:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-04-18 17:06:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-04-18 17:06:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-04-18 17:06:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 17:06:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 17:06:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 17:06:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 17:06:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 17:06:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 17:06:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 17:06:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 17:06:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 17:06:14,453 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 17:06:14,584 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 17:06:14,589 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 17:06:15,041 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 17:06:15,048 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 17:06:15,048 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 17:06:15,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:06:15 BoogieIcfgContainer [2022-04-18 17:06:15,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 17:06:15,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 17:06:15,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 17:06:15,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 17:06:15,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 05:06:13" (1/3) ... [2022-04-18 17:06:15,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2d8999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 05:06:15, skipping insertion in model container [2022-04-18 17:06:15,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:06:14" (2/3) ... [2022-04-18 17:06:15,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2d8999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 05:06:15, skipping insertion in model container [2022-04-18 17:06:15,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:06:15" (3/3) ... [2022-04-18 17:06:15,064 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.i [2022-04-18 17:06:15,067 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 17:06:15,068 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 17:06:15,068 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-04-18 17:06:15,068 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 17:06:15,163 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 17:06:15,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-04-18 17:06:15,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:06:15,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-04-18 17:06:15,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-04-18 17:06:15,222 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnThread1of1ForFork1 ======== [2022-04-18 17:06:15,229 INFO L340 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 [2022-04-18 17:06:15,230 INFO L341 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-04-18 17:06:15,561 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting writer_fnErr2ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:15,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1338962364, now seen corresponding path program 1 times [2022-04-18 17:06:15,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:15,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605544651] [2022-04-18 17:06:15,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:15,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:15,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:06:15,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:15,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605544651] [2022-04-18 17:06:15,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605544651] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:06:15,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:06:15,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 17:06:15,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430963438] [2022-04-18 17:06:15,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:15,873 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 17:06:15,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:15,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 17:06:15,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 17:06:15,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:15,893 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:15,894 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2022-04-18 17:06:15,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:15,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:15,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 17:06:15,948 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting writer_fnErr0ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:15,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:15,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1699953667, now seen corresponding path program 1 times [2022-04-18 17:06:15,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:15,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469246847] [2022-04-18 17:06:15,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:15,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:06:16,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:16,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469246847] [2022-04-18 17:06:16,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469246847] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:06:16,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:06:16,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 17:06:16,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690366472] [2022-04-18 17:06:16,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:16,032 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 17:06:16,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:16,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 17:06:16,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 17:06:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,033 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:16,033 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2022-04-18 17:06:16,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,124 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 17:06:16,124 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting writer_fnErr0ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:16,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:16,125 INFO L85 PathProgramCache]: Analyzing trace with hash -930980904, now seen corresponding path program 1 times [2022-04-18 17:06:16,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:16,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153663060] [2022-04-18 17:06:16,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:16,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:16,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:06:16,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:16,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153663060] [2022-04-18 17:06:16,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153663060] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:06:16,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:06:16,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 17:06:16,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977517937] [2022-04-18 17:06:16,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:16,178 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 17:06:16,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:16,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 17:06:16,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 17:06:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,179 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:16,179 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2022-04-18 17:06:16,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,249 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 17:06:16,249 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting writer_fnErr0ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:16,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:16,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2122328334, now seen corresponding path program 1 times [2022-04-18 17:06:16,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:16,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205832916] [2022-04-18 17:06:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:16,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:06:16,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:16,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205832916] [2022-04-18 17:06:16,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205832916] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:06:16,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:06:16,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 17:06:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317399121] [2022-04-18 17:06:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:16,335 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 17:06:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 17:06:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 17:06:16,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,336 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:16,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2022-04-18 17:06:16,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,370 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 17:06:16,370 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting writer_fnErr0ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:16,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:16,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1344295965, now seen corresponding path program 1 times [2022-04-18 17:06:16,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:16,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226034474] [2022-04-18 17:06:16,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:16,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:16,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:06:16,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:16,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226034474] [2022-04-18 17:06:16,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226034474] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:06:16,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:06:16,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-04-18 17:06:16,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184801217] [2022-04-18 17:06:16,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:16,857 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-04-18 17:06:16,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:16,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-04-18 17:06:16,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-04-18 17:06:16,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,858 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:16,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.470588235294118) internal successors, (110), 18 states have internal predecessors, (110), 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) [2022-04-18 17:06:16,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:16,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:16,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:17,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:17,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 17:06:17,597 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting writer_fnErr1ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:17,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:17,598 INFO L85 PathProgramCache]: Analyzing trace with hash 2074614018, now seen corresponding path program 1 times [2022-04-18 17:06:17,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:17,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088188651] [2022-04-18 17:06:17,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:17,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:17,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:06:17,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:17,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088188651] [2022-04-18 17:06:17,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088188651] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:06:17,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:06:17,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-04-18 17:06:17,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343937470] [2022-04-18 17:06:17,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:17,923 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 17:06:17,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:17,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 17:06:17,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 17:06:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:17,924 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:17,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.0) internal successors, (119), 17 states have internal predecessors, (119), 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) [2022-04-18 17:06:17,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:17,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:17,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:17,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:17,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:17,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:19,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:19,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:19,033 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 17:06:19,033 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting writer_fnErr3ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:19,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:19,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1778785625, now seen corresponding path program 1 times [2022-04-18 17:06:19,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:19,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031594918] [2022-04-18 17:06:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:19,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 17:06:19,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:19,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031594918] [2022-04-18 17:06:19,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031594918] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:06:19,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:06:19,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 17:06:19,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472050507] [2022-04-18 17:06:19,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:19,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 17:06:19,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:19,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 17:06:19,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 17:06:19,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:19,117 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:19,118 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 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) [2022-04-18 17:06:19,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:19,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:19,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:19,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:19,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:19,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:19,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:19,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:19,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:19,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:19,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:19,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-18 17:06:19,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:19,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:19,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 17:06:19,372 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting writer_fnErr4ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:19,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:19,373 INFO L85 PathProgramCache]: Analyzing trace with hash 241274727, now seen corresponding path program 1 times [2022-04-18 17:06:19,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:19,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96242730] [2022-04-18 17:06:19,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:19,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:19,771 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 17:06:19,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:19,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96242730] [2022-04-18 17:06:19,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96242730] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:06:19,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814985742] [2022-04-18 17:06:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:19,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:06:19,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:06:19,773 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:06:19,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 17:06:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:19,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 41 conjunts are in the unsatisfiable core [2022-04-18 17:06:19,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:06:20,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-18 17:06:20,308 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-18 17:06:20,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-18 17:06:24,377 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-18 17:06:24,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2022-04-18 17:06:26,450 INFO L356 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-04-18 17:06:26,451 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 46 [2022-04-18 17:06:28,526 INFO L356 Elim1Store]: treesize reduction 176, result has 17.4 percent of original size [2022-04-18 17:06:28,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 50 treesize of output 58 [2022-04-18 17:06:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 17:06:30,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:06:51,248 WARN L833 $PredicateComparison]: unable to prove that (forall ((|reader_twoThread1of1ForFork0_ring_empty_~r#1.offset| Int)) (= (select (select (store |c_#race| |c_reader_twoThread1of1ForFork0_ring_empty_~r#1.base| (store (select |c_#race| |c_reader_twoThread1of1ForFork0_ring_empty_~r#1.base|) (+ |reader_twoThread1of1ForFork0_ring_empty_~r#1.offset| 3) 0)) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 0)) is different from false [2022-04-18 17:06:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-18 17:06:51,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814985742] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-18 17:06:51,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-18 17:06:51,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18, 16] total 38 [2022-04-18 17:06:51,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547729520] [2022-04-18 17:06:51,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:51,414 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 17:06:51,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:51,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 17:06:51,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1199, Unknown=12, NotChecked=70, Total=1406 [2022-04-18 17:06:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:51,415 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:51,415 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 26.333333333333332) internal successors, (158), 7 states have internal predecessors, (158), 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) [2022-04-18 17:06:51,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:51,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:51,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:51,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:51,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-04-18 17:06:51,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:51,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:51,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:51,954 WARN L833 $PredicateComparison]: unable to prove that (and (= (select (select |c_#race| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 0) (forall ((|reader_twoThread1of1ForFork0_ring_empty_~r#1.offset| Int)) (= (select (select (store |c_#race| |c_reader_twoThread1of1ForFork0_ring_empty_~r#1.base| (store (select |c_#race| |c_reader_twoThread1of1ForFork0_ring_empty_~r#1.base|) (+ |reader_twoThread1of1ForFork0_ring_empty_~r#1.offset| 3) 0)) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| 20)) 0))) is different from false [2022-04-18 17:06:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-18 17:06:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:52,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:06:52,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-18 17:06:52,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-04-18 17:06:52,256 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting writer_fnErr5ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:52,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:52,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1216524324, now seen corresponding path program 1 times [2022-04-18 17:06:52,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:52,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152476125] [2022-04-18 17:06:52,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:52,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 17:06:52,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:52,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152476125] [2022-04-18 17:06:52,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152476125] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:06:52,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795601316] [2022-04-18 17:06:52,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:52,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:06:52,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:06:52,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:06:52,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-18 17:06:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:52,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 71 conjunts are in the unsatisfiable core [2022-04-18 17:06:52,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:06:53,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 17:06:53,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 17:06:53,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 17:06:53,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 17:06:53,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2022-04-18 17:06:53,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:06:53,812 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 17:06:53,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 64 [2022-04-18 17:06:53,851 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 17:06:53,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:06:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-18 17:06:54,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795601316] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-18 17:06:54,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-18 17:06:54,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18, 20] total 28 [2022-04-18 17:06:54,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909577220] [2022-04-18 17:06:54,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:54,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 17:06:54,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:54,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 17:06:54,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2022-04-18 17:06:54,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:54,394 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:54,394 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 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) [2022-04-18 17:06:54,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:54,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:54,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:54,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:54,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-04-18 17:06:54,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:54,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:54,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:06:54,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-18 17:06:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:06:55,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:06:55,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-18 17:06:55,373 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:06:55,373 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting writer_fnErr5ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:55,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:55,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1462076158, now seen corresponding path program 1 times [2022-04-18 17:06:55,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:55,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573875855] [2022-04-18 17:06:55,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:55,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:55,505 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-18 17:06:55,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:55,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573875855] [2022-04-18 17:06:55,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573875855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:06:55,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:06:55,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 17:06:55,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684265102] [2022-04-18 17:06:55,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:55,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 17:06:55,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:55,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 17:06:55,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 17:06:55,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:55,508 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:55,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.8) internal successors, (164), 6 states have internal predecessors, (164), 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) [2022-04-18 17:06:55,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:55,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:55,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:55,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:55,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-04-18 17:06:55,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:55,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:55,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:06:55,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:06:55,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:06:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:06:56,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:06:56,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:56,776 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 17:06:56,776 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting writer_fnErr1ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:56,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:56,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1267427129, now seen corresponding path program 1 times [2022-04-18 17:06:56,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:56,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693499561] [2022-04-18 17:06:56,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:56,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:56,862 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-18 17:06:56,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:56,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693499561] [2022-04-18 17:06:56,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693499561] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:06:56,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392330575] [2022-04-18 17:06:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:56,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:06:56,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:06:56,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:06:56,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-18 17:06:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:57,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 17:06:57,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:06:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-18 17:06:57,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:06:57,876 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-18 17:06:57,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392330575] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 17:06:57,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 17:06:57,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-04-18 17:06:57,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670256080] [2022-04-18 17:06:57,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 17:06:57,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 17:06:57,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:57,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 17:06:57,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-04-18 17:06:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:57,878 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:57,879 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.57142857142857) internal successors, (543), 7 states have internal predecessors, (543), 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) [2022-04-18 17:06:57,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:57,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:57,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:57,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:57,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:06:57,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:57,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:57,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:06:57,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:06:57,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:57,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:06:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:57,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:06:57,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:06:57,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:57,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 17:06:57,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-18 17:06:58,148 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:06:58,149 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting writer_fnErr1ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:58,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:58,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1964728808, now seen corresponding path program 1 times [2022-04-18 17:06:58,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:58,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890308876] [2022-04-18 17:06:58,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:58,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-04-18 17:06:58,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:58,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890308876] [2022-04-18 17:06:58,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890308876] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:06:58,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:06:58,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 17:06:58,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328824975] [2022-04-18 17:06:58,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:06:58,269 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 17:06:58,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:06:58,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 17:06:58,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 17:06:58,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:58,270 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:06:58,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 46.6) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 17:06:58,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:58,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-04-18 17:06:58,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:06:59,024 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 17:06:59,024 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting writer_fnErr4ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:06:59,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:06:59,025 INFO L85 PathProgramCache]: Analyzing trace with hash 263568945, now seen corresponding path program 1 times [2022-04-18 17:06:59,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:06:59,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255750974] [2022-04-18 17:06:59,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:59,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:06:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:59,482 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 180 proven. 697 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-18 17:06:59,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:06:59,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255750974] [2022-04-18 17:06:59,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255750974] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:06:59,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557524313] [2022-04-18 17:06:59,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:06:59,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:06:59,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:06:59,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:06:59,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-18 17:06:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:06:59,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 2218 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-18 17:06:59,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:07:00,521 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 180 proven. 697 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-18 17:07:00,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:07:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 180 proven. 697 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-18 17:07:01,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557524313] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 17:07:01,119 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 17:07:01,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-04-18 17:07:01,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521719414] [2022-04-18 17:07:01,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 17:07:01,120 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-18 17:07:01,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:07:01,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-18 17:07:01,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-04-18 17:07:01,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:01,121 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:07:01,121 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 104.36363636363636) internal successors, (1148), 11 states have internal predecessors, (1148), 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) [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:01,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:01,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:01,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:01,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:01,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:01,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-18 17:07:01,493 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-04-18 17:07:01,493 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting writer_fnErr4ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:07:01,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:07:01,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1108060789, now seen corresponding path program 2 times [2022-04-18 17:07:01,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:07:01,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543354959] [2022-04-18 17:07:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:07:01,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:07:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:07:02,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3626 backedges. 3187 proven. 421 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-04-18 17:07:02,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:07:02,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543354959] [2022-04-18 17:07:02,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543354959] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:07:02,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780847139] [2022-04-18 17:07:02,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-18 17:07:02,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:07:02,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:07:02,535 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:07:02,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-18 17:07:03,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-18 17:07:03,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 17:07:03,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 17:07:03,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:07:04,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-18 17:07:04,103 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-18 17:07:04,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-18 17:07:04,127 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-18 17:07:04,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2022-04-18 17:07:04,159 INFO L356 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-04-18 17:07:04,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 46 [2022-04-18 17:07:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3626 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 3594 trivial. 0 not checked. [2022-04-18 17:07:04,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 17:07:04,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780847139] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:07:04,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 17:07:04,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2022-04-18 17:07:04,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968299185] [2022-04-18 17:07:04,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:07:04,178 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 17:07:04,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:07:04,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 17:07:04,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-04-18 17:07:04,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:04,178 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:07:04,178 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 49.0) internal successors, (245), 6 states have internal predecessors, (245), 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) [2022-04-18 17:07:04,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:04,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:04,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:04,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:04,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:04,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:04,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:04,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:04,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:04,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:04,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:04,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:04,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:04,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:04,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-04-18 17:07:04,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-04-18 17:07:04,836 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting writer_fnErr3ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:07:04,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:07:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1700617863, now seen corresponding path program 1 times [2022-04-18 17:07:04,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:07:04,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382360465] [2022-04-18 17:07:04,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:07:04,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:07:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:07:05,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 3123 proven. 421 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-04-18 17:07:05,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:07:05,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382360465] [2022-04-18 17:07:05,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382360465] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:07:05,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510915723] [2022-04-18 17:07:05,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:07:05,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:07:05,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:07:05,467 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:07:05,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-18 17:07:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:07:06,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 3807 conjuncts, 10 conjunts are in the unsatisfiable core [2022-04-18 17:07:06,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:07:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 3544 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-04-18 17:07:07,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 17:07:07,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510915723] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:07:07,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 17:07:07,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 12 [2022-04-18 17:07:07,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441869718] [2022-04-18 17:07:07,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:07:07,808 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-18 17:07:07,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:07:07,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-18 17:07:07,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2022-04-18 17:07:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:07,809 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:07:07,810 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 98.9090909090909) internal successors, (1088), 11 states have internal predecessors, (1088), 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) [2022-04-18 17:07:07,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:07,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:07,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:07,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:07,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:07,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 17:07:07,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-04-18 17:07:08,179 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-04-18 17:07:08,180 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting writer_fnErr3ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:07:08,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:07:08,180 INFO L85 PathProgramCache]: Analyzing trace with hash -554088005, now seen corresponding path program 2 times [2022-04-18 17:07:08,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:07:08,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945732551] [2022-04-18 17:07:08,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:07:08,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:07:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:07:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 2895 trivial. 0 not checked. [2022-04-18 17:07:09,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:07:09,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945732551] [2022-04-18 17:07:09,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945732551] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:07:09,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21238489] [2022-04-18 17:07:09,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-18 17:07:09,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:07:09,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:07:09,054 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:07:09,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-18 17:07:09,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-18 17:07:09,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 17:07:09,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 51 conjunts are in the unsatisfiable core [2022-04-18 17:07:09,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:07:09,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-04-18 17:07:09,777 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-04-18 17:07:09,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-04-18 17:07:09,790 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-04-18 17:07:09,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-04-18 17:07:13,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 17:07:13,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-04-18 17:07:13,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 17:07:13,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 17:07:13,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 17:07:13,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 17:07:13,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 17:07:13,673 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 17:07:13,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 17:07:13,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 17:07:13,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 17:07:13,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 17:07:13,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 17:07:13,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:13,861 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 17:07:13,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 17:07:13,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 28 proven. 197 refuted. 0 times theorem prover too weak. 2895 trivial. 0 not checked. [2022-04-18 17:07:13,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:07:13,971 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_8610 (Array Int Int))) (= (select (select (store |c_#race| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8610) |c_ULTIMATE.start_main_~#reader~0#1.base|) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 1)) 0)) (forall ((v_ArrVal_8610 (Array Int Int))) (= (select (select (store |c_#race| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8610) |c_ULTIMATE.start_main_~#reader~0#1.base|) |c_ULTIMATE.start_main_~#reader~0#1.offset|) 0)) (forall ((v_ArrVal_8610 (Array Int Int))) (= (select (select (store |c_#race| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8610) |c_ULTIMATE.start_main_~#reader~0#1.base|) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 2)) 0))) is different from false [2022-04-18 17:07:14,189 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_8610 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 2))) (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#reader~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#reader~0#1.base|) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 1) 0) .cse0 0)) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8610) |c_ULTIMATE.start_main_~#reader~0#1.base|) .cse0)) 0)) (forall ((v_ArrVal_8610 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#reader~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#reader~0#1.base|) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 1) 0) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 2) 0)) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8610) |c_ULTIMATE.start_main_~#reader~0#1.base|) |c_ULTIMATE.start_main_~#reader~0#1.offset|) 0)) (forall ((v_ArrVal_8610 (Array Int Int))) (= 0 (let ((.cse1 (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 1))) (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#reader~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#reader~0#1.base|) .cse1 0) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 2) 0)) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8610) |c_ULTIMATE.start_main_~#reader~0#1.base|) .cse1))))) is different from false [2022-04-18 17:07:14,201 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_8610 (Array Int Int)) (v_ArrVal_8597 (Array Int Int))) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 1))) (select (select (store (let ((.cse0 (store |c_#race| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8597))) (store .cse0 |c_ULTIMATE.start_main_~#reader~0#1.base| (store (store (select .cse0 |c_ULTIMATE.start_main_~#reader~0#1.base|) .cse1 0) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 2) 0))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8610) |c_ULTIMATE.start_main_~#reader~0#1.base|) .cse1)) 0)) (forall ((v_ArrVal_8610 (Array Int Int)) (v_ArrVal_8597 (Array Int Int))) (= (let ((.cse3 (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 2))) (select (select (store (let ((.cse2 (store |c_#race| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8597))) (store .cse2 |c_ULTIMATE.start_main_~#reader~0#1.base| (store (store (select .cse2 |c_ULTIMATE.start_main_~#reader~0#1.base|) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 1) 0) .cse3 0))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8610) |c_ULTIMATE.start_main_~#reader~0#1.base|) .cse3)) 0)) (forall ((v_ArrVal_8610 (Array Int Int)) (v_ArrVal_8597 (Array Int Int))) (= (select (select (store (let ((.cse4 (store |c_#race| |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8597))) (store .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base| (store (store (select .cse4 |c_ULTIMATE.start_main_~#reader~0#1.base|) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 1) 0) (+ |c_ULTIMATE.start_main_~#reader~0#1.offset| 2) 0))) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base| v_ArrVal_8610) |c_ULTIMATE.start_main_~#reader~0#1.base|) |c_ULTIMATE.start_main_~#reader~0#1.offset|) 0))) is different from false [2022-04-18 17:07:14,208 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 17:07:14,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 42 [2022-04-18 17:07:14,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2022-04-18 17:07:14,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-04-18 17:07:14,219 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-04-18 17:07:14,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 1 [2022-04-18 17:07:14,224 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-04-18 17:07:14,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 1 [2022-04-18 17:07:16,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 28 proven. 57 refuted. 7 times theorem prover too weak. 2895 trivial. 133 not checked. [2022-04-18 17:07:16,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21238489] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 17:07:16,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 17:07:16,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 38 [2022-04-18 17:07:16,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112144167] [2022-04-18 17:07:16,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 17:07:16,028 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-04-18 17:07:16,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:07:16,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-04-18 17:07:16,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1061, Unknown=24, NotChecked=204, Total=1406 [2022-04-18 17:07:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:16,029 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:07:16,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 14.842105263157896) internal successors, (564), 38 states have internal predecessors, (564), 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) [2022-04-18 17:07:16,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:16,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:16,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:16,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:16,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:16,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:16,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:16,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:16,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:16,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:16,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:16,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:16,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:16,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:16,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-04-18 17:07:16,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:18,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:18,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:18,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:18,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:18,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 17:07:18,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-04-18 17:07:18,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-04-18 17:07:18,587 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:07:18,587 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting writer_fnErr3ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:07:18,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:07:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1681155103, now seen corresponding path program 3 times [2022-04-18 17:07:18,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:07:18,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030470782] [2022-04-18 17:07:18,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:07:18,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:07:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:07:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 284 proven. 217 refuted. 0 times theorem prover too weak. 2619 trivial. 0 not checked. [2022-04-18 17:07:19,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:07:19,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030470782] [2022-04-18 17:07:19,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030470782] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:07:19,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555204665] [2022-04-18 17:07:19,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-18 17:07:19,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:07:19,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:07:19,457 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:07:19,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-04-18 17:07:20,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-04-18 17:07:20,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 17:07:20,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 36 conjunts are in the unsatisfiable core [2022-04-18 17:07:20,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:07:20,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-04-18 17:07:20,117 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-04-18 17:07:20,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-04-18 17:07:20,126 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-04-18 17:07:20,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-04-18 17:07:21,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-04-18 17:07:21,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-04-18 17:07:21,668 INFO L356 Elim1Store]: treesize reduction 42, result has 22.2 percent of original size [2022-04-18 17:07:21,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2022-04-18 17:07:21,688 INFO L356 Elim1Store]: treesize reduction 100, result has 20.0 percent of original size [2022-04-18 17:07:21,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 43 [2022-04-18 17:07:21,717 INFO L356 Elim1Store]: treesize reduction 177, result has 17.3 percent of original size [2022-04-18 17:07:21,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 58 [2022-04-18 17:07:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 2903 trivial. 0 not checked. [2022-04-18 17:07:21,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:07:21,753 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_10513 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#reader~0#1.base| v_ArrVal_10513) |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.base|) (+ |c_writer_fnThread1of1ForFork1_ring_enqueue_~r#1.offset| (* |c_writer_fnThread1of1ForFork1_ring_enqueue_#t~mem6#1| 4) 4)) |c_writer_fnThread1of1ForFork1_ring_enqueue_#t~nondet7#1|)) is different from false [2022-04-18 17:07:21,758 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 17:07:21,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-04-18 17:07:21,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2022-04-18 17:07:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 2903 trivial. 0 not checked. [2022-04-18 17:07:23,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555204665] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 17:07:23,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 17:07:23,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 13] total 21 [2022-04-18 17:07:23,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177404195] [2022-04-18 17:07:23,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 17:07:23,362 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-04-18 17:07:23,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:07:23,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-04-18 17:07:23,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=363, Unknown=1, NotChecked=38, Total=462 [2022-04-18 17:07:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:23,363 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:07:23,364 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 16.857142857142858) internal successors, (354), 22 states have internal predecessors, (354), 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) [2022-04-18 17:07:23,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:23,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:23,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:23,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:23,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:23,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:23,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:23,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:23,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-04-18 17:07:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-04-18 17:07:23,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 17:07:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-04-18 17:07:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 17:07:28,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-04-18 17:07:28,309 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-04-18 17:07:28,310 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting writer_fnErr3ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:07:28,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:07:28,310 INFO L85 PathProgramCache]: Analyzing trace with hash -228837371, now seen corresponding path program 1 times [2022-04-18 17:07:28,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:07:28,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115546956] [2022-04-18 17:07:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:07:28,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:07:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:07:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-18 17:07:29,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:07:29,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115546956] [2022-04-18 17:07:29,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115546956] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:07:29,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231465653] [2022-04-18 17:07:29,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:07:29,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:07:29,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:07:29,063 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:07:29,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-04-18 17:07:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:07:29,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 120 conjunts are in the unsatisfiable core [2022-04-18 17:07:29,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:07:32,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-18 17:07:33,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-18 17:07:33,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 36 [2022-04-18 17:07:33,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 17:07:34,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 17:07:34,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,091 INFO L356 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2022-04-18 17:07:34,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 44 [2022-04-18 17:07:34,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,170 INFO L356 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size [2022-04-18 17:07:34,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 56 [2022-04-18 17:07:34,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,258 INFO L356 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-04-18 17:07:34,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 80 [2022-04-18 17:07:34,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,356 INFO L356 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-04-18 17:07:34,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 92 [2022-04-18 17:07:34,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,525 INFO L356 Elim1Store]: treesize reduction 52, result has 25.7 percent of original size [2022-04-18 17:07:34,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 116 [2022-04-18 17:07:34,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-18 17:07:34,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:34,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-18 17:07:34,703 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-04-18 17:07:34,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 79 [2022-04-18 17:07:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-04-18 17:07:34,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:07:36,516 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-04-18 17:07:36,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231465653] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-18 17:07:36,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-18 17:07:36,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18, 32] total 54 [2022-04-18 17:07:36,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472015962] [2022-04-18 17:07:36,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:07:36,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-18 17:07:36,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:07:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-18 17:07:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=2716, Unknown=0, NotChecked=0, Total=2970 [2022-04-18 17:07:36,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:36,521 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:07:36,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 23.8) internal successors, (238), 11 states have internal predecessors, (238), 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) [2022-04-18 17:07:36,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:36,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:36,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:36,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:36,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:36,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-04-18 17:07:36,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:37,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:07:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:07:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 17:07:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 17:07:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 17:07:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 17:07:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-18 17:07:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 17:07:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 17:07:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-04-18 17:07:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 17:07:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 17:07:38,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-04-18 17:07:38,214 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-04-18 17:07:38,214 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting writer_fnErr3ASSERT_VIOLATIONDATA_RACE === [writer_fnErr0ASSERT_VIOLATIONDATA_RACE, writer_fnErr2ASSERT_VIOLATIONDATA_RACE, writer_fnErr1ASSERT_VIOLATIONDATA_RACE, writer_fnErr3ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-04-18 17:07:38,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:07:38,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1496001903, now seen corresponding path program 1 times [2022-04-18 17:07:38,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:07:38,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076077904] [2022-04-18 17:07:38,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:07:38,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:07:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:07:38,774 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-18 17:07:38,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:07:38,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076077904] [2022-04-18 17:07:38,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076077904] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:07:38,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762234006] [2022-04-18 17:07:38,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:07:38,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:07:38,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:07:38,788 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:07:38,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-04-18 17:07:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:07:39,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 156 conjunts are in the unsatisfiable core [2022-04-18 17:07:39,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:07:39,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-04-18 17:07:39,598 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-04-18 17:07:39,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-04-18 17:07:39,627 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-04-18 17:07:39,627 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-04-18 17:07:39,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-18 17:07:39,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:39,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 17:07:39,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-04-18 17:07:40,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-04-18 17:07:41,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:41,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-18 17:07:41,619 INFO L356 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2022-04-18 17:07:41,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 38 [2022-04-18 17:07:42,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:42,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2022-04-18 17:07:45,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:45,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:45,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-18 17:07:45,100 INFO L356 Elim1Store]: treesize reduction 50, result has 33.3 percent of original size [2022-04-18 17:07:45,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 57 [2022-04-18 17:07:45,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 31 [2022-04-18 17:07:46,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-18 17:07:46,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-04-18 17:07:46,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-04-18 17:07:46,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:46,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2022-04-18 17:07:46,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:46,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2022-04-18 17:07:47,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,061 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 17:07:47,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2022-04-18 17:07:47,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,131 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 17:07:47,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2022-04-18 17:07:47,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 17:07:47,205 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 17:07:47,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 58 [2022-04-18 17:07:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 9 proven. 339 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-18 17:07:47,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:07:47,817 INFO L173 IndexEqualityManager]: detected equality via solver Killed by 15