./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-race-challenges/thread-join-binomial-race-3.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d2ba6107 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 ../../../trunk/examples/svcomp/pthread-race-challenges/thread-join-binomial-race-3.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 --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 2fcf549dbbd9dfa3c3590290694ca7785fc56f3cc704f9ad7d537aaa6ab3cd10 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-d2ba610-m [2023-11-21 19:46:59,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:46:59,094 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-21 19:46:59,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:46:59,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:46:59,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:46:59,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:46:59,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:46:59,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:46:59,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:46:59,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:46:59,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:46:59,120 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 19:46:59,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:46:59,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:46:59,121 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:46:59,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:46:59,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:46:59,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:46:59,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:46:59,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:46:59,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:46:59,123 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 19:46:59,123 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:46:59,123 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:46:59,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:46:59,124 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:46:59,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:46:59,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:46:59,125 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-21 19:46:59,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:46:59,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:46:59,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:46:59,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:46:59,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:46:59,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 19:46:59,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:46:59,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:46:59,127 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-21 19:46:59,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 19:46:59,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:46:59,127 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 19:46:59,127 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 19:46:59,127 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fcf549dbbd9dfa3c3590290694ca7785fc56f3cc704f9ad7d537aaa6ab3cd10 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-21 19:46:59,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:46:59,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:46:59,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:46:59,294 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:46:59,294 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:46:59,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-race-challenges/thread-join-binomial-race-3.i [2023-11-21 19:47:00,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:47:00,376 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:47:00,376 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-race-challenges/thread-join-binomial-race-3.i [2023-11-21 19:47:00,389 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ede5b334f/84640aa3775247b99577fd3eb4cc6e39/FLAGcf23dc126 [2023-11-21 19:47:00,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ede5b334f/84640aa3775247b99577fd3eb4cc6e39 [2023-11-21 19:47:00,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:47:00,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:47:00,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:47:00,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:47:00,731 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:47:00,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:47:00" (1/1) ... [2023-11-21 19:47:00,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155d8191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:00, skipping insertion in model container [2023-11-21 19:47:00,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:47:00" (1/1) ... [2023-11-21 19:47:00,782 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:47:00,943 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:47:01,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:47:01,159 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:47:01,179 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:47:01,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:47:01,274 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:47:01,280 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:47:01,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01 WrapperNode [2023-11-21 19:47:01,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:47:01,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:47:01,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:47:01,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:47:01,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,356 INFO L138 Inliner]: procedures = 269, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-11-21 19:47:01,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:47:01,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:47:01,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:47:01,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:47:01,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,380 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,401 INFO L193 HeapSplitter]: Split 14 memory accesses to 3 slices as follows [6, 5, 3] [2023-11-21 19:47:01,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,415 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,440 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:47:01,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:47:01,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:47:01,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:47:01,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (1/1) ... [2023-11-21 19:47:01,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:47:01,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:01,468 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) [2023-11-21 19:47:01,469 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 [2023-11-21 19:47:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 19:47:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 19:47:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 19:47:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:47:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 19:47:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 19:47:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 19:47:01,524 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 19:47:01,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 19:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 19:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 19:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 19:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 19:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 19:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 19:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 19:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 19:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 19:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 19:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 19:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 19:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-21 19:47:01,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-21 19:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:47:01,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:47:01,530 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 19:47:01,658 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:47:01,659 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:47:01,937 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:47:01,960 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:47:01,960 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 19:47:01,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:01 BoogieIcfgContainer [2023-11-21 19:47:01,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:47:01,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:47:01,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:47:01,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:47:01,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:47:00" (1/3) ... [2023-11-21 19:47:01,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecc8a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:47:01, skipping insertion in model container [2023-11-21 19:47:01,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:01" (2/3) ... [2023-11-21 19:47:01,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecc8a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:47:01, skipping insertion in model container [2023-11-21 19:47:01,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:01" (3/3) ... [2023-11-21 19:47:01,970 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-binomial-race-3.i [2023-11-21 19:47:01,977 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 19:47:01,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:47:01,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-21 19:47:01,987 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 19:47:02,067 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 19:47:02,106 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:47:02,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 19:47:02,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:02,107 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) [2023-11-21 19:47:02,122 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 [2023-11-21 19:47:02,157 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 19:47:02,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of1ForFork0 ======== [2023-11-21 19:47:02,185 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4eb05a19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:47:02,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-21 19:47:02,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:02,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:02,419 INFO L85 PathProgramCache]: Analyzing trace with hash -589813167, now seen corresponding path program 1 times [2023-11-21 19:47:02,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:02,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661086552] [2023-11-21 19:47:02,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:02,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:02,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:02,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661086552] [2023-11-21 19:47:02,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661086552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:02,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:02,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:47:02,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040421867] [2023-11-21 19:47:02,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:02,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 19:47:02,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:02,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 19:47:02,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:47:02,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:02,718 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:02,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:02,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:02,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:02,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:47:02,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:02,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:02,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1938478496, now seen corresponding path program 1 times [2023-11-21 19:47:02,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:02,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424669822] [2023-11-21 19:47:02,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:02,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:02,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:02,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:02,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424669822] [2023-11-21 19:47:02,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424669822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:02,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:02,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:47:02,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570800773] [2023-11-21 19:47:02,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:02,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:02,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:02,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:02,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:02,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:02,826 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:02,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:02,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:02,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:02,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:02,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:02,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:47:02,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:02,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash 373110652, now seen corresponding path program 1 times [2023-11-21 19:47:02,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:02,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620976524] [2023-11-21 19:47:02,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:02,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:02,948 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:02,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [113875217] [2023-11-21 19:47:02,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:02,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:02,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:02,990 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) [2023-11-21 19:47:02,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 19:47:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:03,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:47:03,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:03,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:03,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:03,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620976524] [2023-11-21 19:47:03,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:03,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113875217] [2023-11-21 19:47:03,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113875217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:03,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:03,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:47:03,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739674257] [2023-11-21 19:47:03,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:03,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:03,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:03,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:03,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:03,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:03,129 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:03,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 43.5) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:03,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:03,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:03,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:03,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:03,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:03,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:03,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:03,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-21 19:47:03,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:03,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:03,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1375615751, now seen corresponding path program 1 times [2023-11-21 19:47:03,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:03,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169454356] [2023-11-21 19:47:03,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:03,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:03,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:03,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545199666] [2023-11-21 19:47:03,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:03,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:03,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:03,431 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) [2023-11-21 19:47:03,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 19:47:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:03,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 19:47:03,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:03,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 19:47:03,692 INFO L378 Elim1Store]: Elim1 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 18 [2023-11-21 19:47:03,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:03,714 INFO L378 Elim1Store]: Elim1 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 26 treesize of output 28 [2023-11-21 19:47:03,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:03,737 INFO L378 Elim1Store]: Elim1 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 33 treesize of output 38 [2023-11-21 19:47:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:03,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:03,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:03,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169454356] [2023-11-21 19:47:03,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:03,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545199666] [2023-11-21 19:47:03,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545199666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:03,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:03,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:47:03,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947639363] [2023-11-21 19:47:03,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:03,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 19:47:03,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:03,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 19:47:03,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 19:47:03,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:03,757 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:03,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:03,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:03,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:03,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:03,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:04,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 19:47:04,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:04,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:04,220 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:04,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:04,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1659480163, now seen corresponding path program 1 times [2023-11-21 19:47:04,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:04,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297409632] [2023-11-21 19:47:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:04,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:04,239 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:04,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20945809] [2023-11-21 19:47:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:04,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:04,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:04,255 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) [2023-11-21 19:47:04,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 19:47:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:04,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 19:47:04,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:04,378 INFO L378 Elim1Store]: Elim1 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 55 treesize of output 42 [2023-11-21 19:47:04,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-11-21 19:47:04,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-11-21 19:47:04,421 INFO L378 Elim1Store]: Elim1 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 96 treesize of output 80 [2023-11-21 19:47:04,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:04,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 154 [2023-11-21 19:47:04,466 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 19:47:04,467 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 19:47:04,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 76 treesize of output 30 [2023-11-21 19:47:04,529 INFO L378 Elim1Store]: Elim1 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 124 treesize of output 104 [2023-11-21 19:47:04,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:04,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 208 [2023-11-21 19:47:04,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 72 treesize of output 51 [2023-11-21 19:47:04,637 INFO L378 Elim1Store]: Elim1 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 152 treesize of output 128 [2023-11-21 19:47:04,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:04,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 128 treesize of output 262 [2023-11-21 19:47:04,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 85 treesize of output 69 [2023-11-21 19:47:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:04,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:04,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:04,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297409632] [2023-11-21 19:47:04,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:04,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20945809] [2023-11-21 19:47:04,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20945809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:04,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:04,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:47:04,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823668389] [2023-11-21 19:47:04,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:04,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:47:04,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:04,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:47:04,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:47:04,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:04,767 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:04,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:04,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:04,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:04,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:04,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-21 19:47:04,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 19:47:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:05,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-11-21 19:47:05,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2023-11-21 19:47:05,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-11-21 19:47:05,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-11-21 19:47:05,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:05,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:05,903 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-21 19:47:05,904 INFO L307 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE (1/2) [2023-11-21 19:47:05,907 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:47:05,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 19:47:05,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:05,909 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-21 19:47:05,912 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 19:47:05,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-21 19:47:05,912 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4eb05a19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:47:05,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-21 19:47:05,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 19:47:05,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:05,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1697247302, now seen corresponding path program 1 times [2023-11-21 19:47:05,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:05,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873107436] [2023-11-21 19:47:05,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:05,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:05,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-11-21 19:47:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:05,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:05,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873107436] [2023-11-21 19:47:05,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873107436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:05,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:05,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:47:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717014798] [2023-11-21 19:47:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:05,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:05,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:05,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:05,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:05,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:05,951 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:05,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:05,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:05,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:05,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 19:47:05,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 19:47:05,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:05,958 INFO L85 PathProgramCache]: Analyzing trace with hash -481627170, now seen corresponding path program 1 times [2023-11-21 19:47:05,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:05,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126023677] [2023-11-21 19:47:05,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:05,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:05,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:05,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126023677] [2023-11-21 19:47:05,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126023677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:05,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:05,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:47:05,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100540796] [2023-11-21 19:47:05,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:05,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:05,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:05,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:05,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:05,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:05,977 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:05,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:05,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:05,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:05,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 19:47:05,988 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 19:47:05,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:05,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1521003898, now seen corresponding path program 1 times [2023-11-21 19:47:05,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:05,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366169644] [2023-11-21 19:47:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:05,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:06,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:06,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366169644] [2023-11-21 19:47:06,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366169644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:06,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:06,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:47:06,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970673627] [2023-11-21 19:47:06,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:06,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:47:06,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:06,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:47:06,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:47:06,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:06,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:06,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:06,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:06,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:06,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:06,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:06,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 19:47:06,209 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 19:47:06,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:06,209 INFO L85 PathProgramCache]: Analyzing trace with hash -310557650, now seen corresponding path program 1 times [2023-11-21 19:47:06,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:06,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833506979] [2023-11-21 19:47:06,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:06,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:06,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:06,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:06,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833506979] [2023-11-21 19:47:06,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833506979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:06,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:06,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:47:06,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851370144] [2023-11-21 19:47:06,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:06,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:47:06,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:06,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:47:06,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:47:06,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,404 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:06,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:06,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:06,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:06,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:06,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:06,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 19:47:06,534 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-21 19:47:06,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:06,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1149405514, now seen corresponding path program 1 times [2023-11-21 19:47:06,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:06,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068265953] [2023-11-21 19:47:06,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:06,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:47:06,571 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:47:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:47:06,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 19:47:06,602 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:47:06,603 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-21 19:47:06,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-21 19:47:06,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-11-21 19:47:06,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-21 19:47:06,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-21 19:47:06,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-21 19:47:06,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-21 19:47:06,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-21 19:47:06,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-21 19:47:06,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-21 19:47:06,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-21 19:47:06,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 19:47:06,607 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-21 19:47:06,607 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/2) [2023-11-21 19:47:06,608 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 19:47:06,608 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 19:47:06,632 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-21 19:47:06,635 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:47:06,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 19:47:06,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:06,641 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-21 19:47:06,644 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 19:47:06,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of2ForFork0 ======== [2023-11-21 19:47:06,644 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4eb05a19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:47:06,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-21 19:47:06,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2023-11-21 19:47:06,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:06,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:06,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1395038901, now seen corresponding path program 1 times [2023-11-21 19:47:06,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:06,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354961124] [2023-11-21 19:47:06,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:06,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:06,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:06,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354961124] [2023-11-21 19:47:06,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354961124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:06,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:06,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:47:06,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097860033] [2023-11-21 19:47:06,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:06,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 19:47:06,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 19:47:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 19:47:06,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,757 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:06,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:06,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 19:47:06,764 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:06,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash -2001015895, now seen corresponding path program 1 times [2023-11-21 19:47:06,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:06,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517004918] [2023-11-21 19:47:06,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:06,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:06,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:06,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:06,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517004918] [2023-11-21 19:47:06,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517004918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:06,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:06,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:47:06,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672176453] [2023-11-21 19:47:06,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:06,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:06,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:06,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:06,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,814 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:06,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:06,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:06,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 19:47:06,991 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:06,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:06,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1728475189, now seen corresponding path program 1 times [2023-11-21 19:47:06,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:06,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041430745] [2023-11-21 19:47:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:06,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:07,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:07,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201055327] [2023-11-21 19:47:07,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:07,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:07,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:07,022 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) [2023-11-21 19:47:07,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 19:47:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:07,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:47:07,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:07,291 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2023-11-21 19:47:07,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:07,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:07,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041430745] [2023-11-21 19:47:07,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:07,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201055327] [2023-11-21 19:47:07,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201055327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:07,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:07,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:47:07,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445978073] [2023-11-21 19:47:07,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:07,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:07,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:07,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:07,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:07,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:07,294 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:07,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 74.0) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:07,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:07,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:07,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:07,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:07,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:07,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-21 19:47:07,575 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:07,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:07,576 INFO L85 PathProgramCache]: Analyzing trace with hash 527358363, now seen corresponding path program 1 times [2023-11-21 19:47:07,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:07,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589368667] [2023-11-21 19:47:07,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:07,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:07,639 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:07,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316992754] [2023-11-21 19:47:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:07,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:07,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:07,640 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) [2023-11-21 19:47:07,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 19:47:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:07,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 19:47:07,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:07,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-21 19:47:07,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:07,899 INFO L378 Elim1Store]: Elim1 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 6 case distinctions, treesize of input 52 treesize of output 51 [2023-11-21 19:47:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2023-11-21 19:47:07,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:07,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:07,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589368667] [2023-11-21 19:47:07,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:07,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316992754] [2023-11-21 19:47:07,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316992754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:07,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:07,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:47:07,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017841974] [2023-11-21 19:47:07,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:07,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:47:07,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:07,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:47:07,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:47:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:07,918 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:07,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:07,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:07,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:07,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:07,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:08,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:08,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:08,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:08,435 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:08,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:08,436 INFO L85 PathProgramCache]: Analyzing trace with hash 937787199, now seen corresponding path program 1 times [2023-11-21 19:47:08,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:08,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532145006] [2023-11-21 19:47:08,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:08,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:08,465 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:08,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703258942] [2023-11-21 19:47:08,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:08,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:08,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:08,467 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) [2023-11-21 19:47:08,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 19:47:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:08,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-21 19:47:08,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 370 proven. 39 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-21 19:47:09,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:47:09,338 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-21 19:47:09,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:09,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532145006] [2023-11-21 19:47:09,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:09,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703258942] [2023-11-21 19:47:09,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703258942] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-21 19:47:09,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 19:47:09,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 21 [2023-11-21 19:47:09,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529238182] [2023-11-21 19:47:09,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:09,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 19:47:09,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:09,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 19:47:09,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-11-21 19:47:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:09,342 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:09,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 25.46153846153846) internal successors, (331), 13 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:09,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:09,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:09,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:09,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:09,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:10,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:10,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-21 19:47:10,581 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:10,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:10,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1992377504, now seen corresponding path program 1 times [2023-11-21 19:47:10,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:10,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772428523] [2023-11-21 19:47:10,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:10,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:10,603 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:10,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220374653] [2023-11-21 19:47:10,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:10,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:10,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:10,605 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) [2023-11-21 19:47:10,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 19:47:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:10,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-21 19:47:10,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:10,996 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 146 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:47:10,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:47:11,244 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 145 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:47:11,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:11,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772428523] [2023-11-21 19:47:11,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:11,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220374653] [2023-11-21 19:47:11,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220374653] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:47:11,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 19:47:11,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-21 19:47:11,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118415147] [2023-11-21 19:47:11,246 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 19:47:11,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-21 19:47:11,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:11,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-21 19:47:11,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2023-11-21 19:47:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:11,248 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:11,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 18.5) internal successors, (370), 20 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:11,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:11,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:11,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:11,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:11,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:11,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-21 19:47:11,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:12,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-21 19:47:12,095 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:12,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2038725261, now seen corresponding path program 1 times [2023-11-21 19:47:12,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:12,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541261217] [2023-11-21 19:47:12,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:12,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:12,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:12,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347342911] [2023-11-21 19:47:12,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:12,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:12,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:12,120 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) [2023-11-21 19:47:12,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 19:47:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:12,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 19:47:12,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-21 19:47:12,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:12,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:12,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541261217] [2023-11-21 19:47:12,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:12,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347342911] [2023-11-21 19:47:12,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347342911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:12,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:12,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:47:12,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873425651] [2023-11-21 19:47:12,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:12,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:12,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:12,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:12,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:12,381 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:12,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:12,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:12,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:12,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:12,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:12,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:12,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-11-21 19:47:12,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:12,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-21 19:47:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:12,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:12,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-21 19:47:12,750 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:12,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:12,750 INFO L85 PathProgramCache]: Analyzing trace with hash -855063246, now seen corresponding path program 1 times [2023-11-21 19:47:12,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:12,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547644807] [2023-11-21 19:47:12,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:12,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:12,777 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:12,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984840083] [2023-11-21 19:47:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:12,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:12,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:12,778 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:47:12,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 19:47:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:13,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 19:47:13,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 154 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:47:13,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:47:13,662 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 145 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:47:13,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:13,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547644807] [2023-11-21 19:47:13,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:13,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984840083] [2023-11-21 19:47:13,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984840083] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:47:13,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 19:47:13,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2023-11-21 19:47:13,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546250088] [2023-11-21 19:47:13,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 19:47:13,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-21 19:47:13,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:13,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-21 19:47:13,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2023-11-21 19:47:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:13,665 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:13,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 17.857142857142858) internal successors, (375), 21 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-11-21 19:47:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:13,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-21 19:47:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-21 19:47:14,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:14,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-21 19:47:14,355 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:14,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:14,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1737651112, now seen corresponding path program 1 times [2023-11-21 19:47:14,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:14,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093872872] [2023-11-21 19:47:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:14,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:14,374 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:14,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047651806] [2023-11-21 19:47:14,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:14,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:14,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:14,376 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:47:14,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 19:47:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:14,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 19:47:14,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:14,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 19:47:14,608 INFO L378 Elim1Store]: Elim1 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 21 treesize of output 20 [2023-11-21 19:47:14,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:14,617 INFO L378 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-21 19:47:14,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:14,630 INFO L378 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-21 19:47:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-21 19:47:14,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:14,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:14,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093872872] [2023-11-21 19:47:14,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:14,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047651806] [2023-11-21 19:47:14,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047651806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:14,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:14,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:47:14,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618989381] [2023-11-21 19:47:14,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:14,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:47:14,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:14,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:47:14,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:47:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:14,643 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:14,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-21 19:47:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-21 19:47:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-21 19:47:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-21 19:47:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:14,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-21 19:47:15,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:15,097 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:15,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:15,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1837547884, now seen corresponding path program 1 times [2023-11-21 19:47:15,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:15,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443580902] [2023-11-21 19:47:15,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:15,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:15,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:15,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848626394] [2023-11-21 19:47:15,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:15,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:15,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:15,119 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:47:15,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 19:47:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:15,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 19:47:15,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:15,356 INFO L378 Elim1Store]: Elim1 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 55 treesize of output 42 [2023-11-21 19:47:15,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-11-21 19:47:15,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-11-21 19:47:15,396 INFO L378 Elim1Store]: Elim1 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 96 treesize of output 80 [2023-11-21 19:47:15,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:15,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 154 [2023-11-21 19:47:15,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:15,432 INFO L378 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 61 treesize of output 35 [2023-11-21 19:47:15,462 INFO L378 Elim1Store]: Elim1 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 124 treesize of output 104 [2023-11-21 19:47:15,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:15,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 208 [2023-11-21 19:47:15,480 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 19:47:15,482 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 19:47:15,486 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 19:47:15,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 110 treesize of output 57 [2023-11-21 19:47:15,574 INFO L378 Elim1Store]: Elim1 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 152 treesize of output 128 [2023-11-21 19:47:15,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:15,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 128 treesize of output 262 [2023-11-21 19:47:15,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:47:15,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 84 treesize of output 68 [2023-11-21 19:47:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-21 19:47:15,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:15,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:15,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443580902] [2023-11-21 19:47:15,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:15,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848626394] [2023-11-21 19:47:15,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848626394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:15,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:15,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:47:15,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848630481] [2023-11-21 19:47:15,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:15,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:47:15,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:15,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:47:15,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:47:15,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:15,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:15,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:15,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:19,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:20,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:20,109 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:20,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:20,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1244057403, now seen corresponding path program 1 times [2023-11-21 19:47:20,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:20,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443210648] [2023-11-21 19:47:20,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:20,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:20,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:20,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511114947] [2023-11-21 19:47:20,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:20,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:20,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:20,141 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:47:20,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-21 19:47:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:20,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 19:47:20,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 50 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:47:20,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:47:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:47:20,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:20,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443210648] [2023-11-21 19:47:20,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:20,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511114947] [2023-11-21 19:47:20,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511114947] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:47:20,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 19:47:20,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-21 19:47:20,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087903314] [2023-11-21 19:47:20,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 19:47:20,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-21 19:47:20,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:20,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-21 19:47:20,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-11-21 19:47:20,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:20,957 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:20,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.1) internal successors, (302), 20 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:20,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:20,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:20,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:20,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:20,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:20,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:20,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:20,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:20,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:20,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:20,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:23,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:23,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:23,780 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:23,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:23,781 INFO L85 PathProgramCache]: Analyzing trace with hash 53371974, now seen corresponding path program 1 times [2023-11-21 19:47:23,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:23,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468607102] [2023-11-21 19:47:23,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:23,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:23,806 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:23,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270371150] [2023-11-21 19:47:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:23,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:23,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:23,807 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:47:23,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-21 19:47:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:24,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 19:47:24,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-21 19:47:24,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:24,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:24,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468607102] [2023-11-21 19:47:24,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:24,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270371150] [2023-11-21 19:47:24,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270371150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:24,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:24,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-21 19:47:24,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052626713] [2023-11-21 19:47:24,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:24,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 19:47:24,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:24,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 19:47:24,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-21 19:47:24,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:24,165 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:24,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:24,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:24,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:24,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:24,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:24,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:24,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:24,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:24,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:24,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:27,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:27,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:27,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:47:27,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:27,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-21 19:47:27,628 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:27,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:27,628 INFO L85 PathProgramCache]: Analyzing trace with hash 798092702, now seen corresponding path program 1 times [2023-11-21 19:47:27,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:27,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138213524] [2023-11-21 19:47:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:27,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:27,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:27,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803642118] [2023-11-21 19:47:27,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:27,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:27,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:27,652 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:47:27,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-21 19:47:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:27,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 19:47:27,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:28,057 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-21 19:47:28,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:28,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:28,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138213524] [2023-11-21 19:47:28,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:28,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803642118] [2023-11-21 19:47:28,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803642118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:28,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:28,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:47:28,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432327748] [2023-11-21 19:47:28,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:28,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:47:28,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:28,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:47:28,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:47:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:28,060 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:28,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:28,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:28,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:28,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:28,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:28,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:28,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:28,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:28,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:28,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:28,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:28,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:28,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:47:28,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:30,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:47:30,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:47:30,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:31,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-21 19:47:31,007 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:31,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1992817562, now seen corresponding path program 1 times [2023-11-21 19:47:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:31,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550838628] [2023-11-21 19:47:31,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:31,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:31,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:31,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100502737] [2023-11-21 19:47:31,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:31,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:31,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:31,028 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:47:31,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-21 19:47:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:31,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 19:47:31,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 59 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:47:31,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:47:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 60 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:47:31,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:31,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550838628] [2023-11-21 19:47:31,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:31,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100502737] [2023-11-21 19:47:31,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100502737] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:47:31,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 19:47:31,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-21 19:47:31,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642696856] [2023-11-21 19:47:31,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 19:47:31,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-21 19:47:31,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:31,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-21 19:47:31,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2023-11-21 19:47:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:31,710 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:31,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.8) internal successors, (316), 20 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:31,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:47:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:47:31,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:47:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:47:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-21 19:47:34,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-21 19:47:34,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-21 19:47:34,646 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:34,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1160208766, now seen corresponding path program 1 times [2023-11-21 19:47:34,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:34,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522881263] [2023-11-21 19:47:34,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:34,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:34,668 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:34,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1096731244] [2023-11-21 19:47:34,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:34,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:34,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:34,670 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:47:34,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-21 19:47:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:34,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:47:34,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-21 19:47:34,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:34,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:34,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522881263] [2023-11-21 19:47:34,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:34,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096731244] [2023-11-21 19:47:34,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096731244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:34,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:34,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:47:34,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002003844] [2023-11-21 19:47:34,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:34,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:34,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:34,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:34,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:34,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:34,971 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:34,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:34,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:34,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:34,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:47:34,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:47:34,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-11-21 19:47:34,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:37,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-21 19:47:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:37,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-21 19:47:37,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:37,522 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:47:37,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:37,522 INFO L85 PathProgramCache]: Analyzing trace with hash -9238693, now seen corresponding path program 1 times [2023-11-21 19:47:37,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:47:37,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208658254] [2023-11-21 19:47:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:37,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:37,547 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:47:37,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2006886629] [2023-11-21 19:47:37,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:37,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:47:37,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:47:37,549 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:47:37,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-21 19:47:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:37,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-21 19:47:37,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:37,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 19:47:37,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-11-21 19:47:38,165 INFO L378 Elim1Store]: Elim1 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 25 treesize of output 17 [2023-11-21 19:47:38,167 INFO L378 Elim1Store]: Elim1 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 21 treesize of output 13 [2023-11-21 19:47:38,186 INFO L378 Elim1Store]: Elim1 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 17 treesize of output 9 [2023-11-21 19:47:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 46 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:47:38,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:47:39,201 INFO L378 Elim1Store]: Elim1 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 130 treesize of output 106 [2023-11-21 19:47:39,229 INFO L378 Elim1Store]: Elim1 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 134 treesize of output 110 [2023-11-21 19:47:40,561 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 46 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:47:40,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:47:40,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208658254] [2023-11-21 19:47:40,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:47:40,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006886629] [2023-11-21 19:47:40,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006886629] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:47:40,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 19:47:40,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-11-21 19:47:40,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909831426] [2023-11-21 19:47:40,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 19:47:40,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-21 19:47:40,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:47:40,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-21 19:47:40,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2023-11-21 19:47:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:40,564 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:47:40,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.15625) internal successors, (325), 32 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:47:40,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:40,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:48:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:48:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:48:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:48:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:48:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-11-21 19:48:01,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-21 19:48:01,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-21 19:48:01,598 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE, threadErr1ASSERT_VIOLATIONDATA_RACE, threadErr2ASSERT_VIOLATIONDATA_RACE, threadErr3ASSERT_VIOLATIONDATA_RACE] === [2023-11-21 19:48:01,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:48:01,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1124449797, now seen corresponding path program 1 times [2023-11-21 19:48:01,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:48:01,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229718264] [2023-11-21 19:48:01,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:48:01,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:48:01,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:48:01,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617587074] [2023-11-21 19:48:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:48:01,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:48:01,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:48:01,650 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:48:01,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-21 19:48:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:48:02,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 2043 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 19:48:02,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:48:02,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1977 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 1602 trivial. 0 not checked. [2023-11-21 19:48:02,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:48:02,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:48:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229718264] [2023-11-21 19:48:02,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:48:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617587074] [2023-11-21 19:48:02,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617587074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:48:02,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:48:02,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:48:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817372053] [2023-11-21 19:48:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:48:02,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:48:02,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:48:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:48:02,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:48:02,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:48:02,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:48:02,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:48:02,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:48:02,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:48:02,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2023-11-21 19:48:02,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:48:02,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2023-11-21 19:48:02,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.