/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder-VarAbsGlobalSmt.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-16 16:59:35,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:59:35,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:59:35,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:59:35,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:59:35,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:59:35,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:59:35,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:59:35,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:59:35,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:59:35,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:59:35,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:59:35,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:59:35,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:59:35,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:59:35,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:59:35,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:59:35,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:59:35,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:59:35,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:59:35,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:59:35,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:59:35,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:59:35,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:59:35,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:59:35,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:59:35,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:59:35,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:59:35,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:59:35,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:59:35,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:59:35,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:59:35,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:59:35,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:59:35,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:59:35,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:59:35,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:59:35,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:59:35,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:59:35,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:59:35,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:59:35,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder-VarAbsGlobalSmt.epf [2022-11-16 16:59:35,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:59:35,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:59:35,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:59:35,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:59:35,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:59:35,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:59:35,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 16:59:35,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 16:59:35,415 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 16:59:35,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:59:35,416 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:59:35,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:59:35,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:59:35,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:59:35,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:59:35,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:59:35,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:59:35,416 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:59:35,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:59:35,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:59:35,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:59:35,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:59:35,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 16:59:35,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 16:59:35,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:59:35,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:59:35,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:59:35,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:59:35,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:59:35,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 16:59:35,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:59:35,418 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 16:59:35,418 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-16 16:59:35,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 16:59:35,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:59:35,418 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 16:59:35,419 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 16:59:35,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP [2022-11-16 16:59:35,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:59:35,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:59:35,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:59:35,619 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:59:35,620 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:59:35,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2022-11-16 16:59:35,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3c4c0c6b/1034de58fecf4938879a2e565668de62/FLAGabd31b412 [2022-11-16 16:59:36,014 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:59:36,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2022-11-16 16:59:36,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3c4c0c6b/1034de58fecf4938879a2e565668de62/FLAGabd31b412 [2022-11-16 16:59:36,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3c4c0c6b/1034de58fecf4938879a2e565668de62 [2022-11-16 16:59:36,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:59:36,034 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 16:59:36,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:59:36,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:59:36,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:59:36,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7640b4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36, skipping insertion in model container [2022-11-16 16:59:36,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:59:36,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:59:36,206 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2669,2682] [2022-11-16 16:59:36,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:59:36,226 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:59:36,251 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2669,2682] [2022-11-16 16:59:36,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:59:36,261 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:59:36,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36 WrapperNode [2022-11-16 16:59:36,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:59:36,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:59:36,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:59:36,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:59:36,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,296 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-11-16 16:59:36,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:59:36,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:59:36,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:59:36,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:59:36,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,312 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:59:36,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:59:36,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:59:36,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:59:36,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (1/1) ... [2022-11-16 16:59:36,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:59:36,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 16:59:36,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:59:36,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:59:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:59:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 16:59:36,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 16:59:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 16:59:36,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 16:59:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 16:59:36,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 16:59:36,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 16:59:36,388 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 16:59:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:59:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:59:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:59:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:59:36,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:59:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:59:36,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:59:36,389 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 16:59:36,459 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:59:36,461 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:59:36,642 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:59:36,650 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:59:36,650 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 16:59:36,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:59:36 BoogieIcfgContainer [2022-11-16 16:59:36,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:59:36,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:59:36,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:59:36,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:59:36,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:59:36" (1/3) ... [2022-11-16 16:59:36,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2466678f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:59:36, skipping insertion in model container [2022-11-16 16:59:36,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:36" (2/3) ... [2022-11-16 16:59:36,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2466678f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:59:36, skipping insertion in model container [2022-11-16 16:59:36,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:59:36" (3/3) ... [2022-11-16 16:59:36,657 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2022-11-16 16:59:36,662 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 16:59:36,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:59:36,668 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:59:36,668 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 16:59:36,774 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 16:59:36,816 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:59:36,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 16:59:36,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 16:59:36,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 16:59:36,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-16 16:59:36,849 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 16:59:36,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-16 16:59:36,860 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@575914f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:59:36,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-16 16:59:37,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 16:59:37,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:59:37,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1289200476, now seen corresponding path program 1 times [2022-11-16 16:59:37,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 16:59:37,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581197932] [2022-11-16 16:59:37,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:59:37,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:59:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:59:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:59:37,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 16:59:37,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581197932] [2022-11-16 16:59:37,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581197932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:59:37,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:59:37,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:59:37,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842897841] [2022-11-16 16:59:37,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:59:37,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 16:59:37,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 16:59:37,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 16:59:37,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:59:37,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:37,376 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 16:59:37,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 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) [2022-11-16 16:59:37,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:37,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:59:37,465 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 16:59:37,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:59:37,466 INFO L85 PathProgramCache]: Analyzing trace with hash 196068149, now seen corresponding path program 1 times [2022-11-16 16:59:37,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 16:59:37,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515322647] [2022-11-16 16:59:37,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:59:37,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:59:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:59:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:59:38,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 16:59:38,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515322647] [2022-11-16 16:59:38,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515322647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:59:38,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:59:38,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:59:38,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982989512] [2022-11-16 16:59:38,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:59:38,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 16:59:38,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 16:59:38,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 16:59:38,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:59:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:38,147 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 16:59:38,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:59:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:38,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:38,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:38,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 16:59:38,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:59:38,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 16:59:38,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:59:38,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1900676538, now seen corresponding path program 1 times [2022-11-16 16:59:38,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 16:59:38,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256454609] [2022-11-16 16:59:38,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:59:38,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:59:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:59:38,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:59:38,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 16:59:38,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256454609] [2022-11-16 16:59:38,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256454609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:59:38,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:59:38,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 16:59:38,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165894962] [2022-11-16 16:59:38,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:59:38,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:59:38,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 16:59:38,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:59:38,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:59:38,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:38,607 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 16:59:38,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) 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) [2022-11-16 16:59:38,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:38,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 16:59:38,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 16:59:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:59:38,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:59:38,769 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 16:59:38,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:59:38,771 INFO L85 PathProgramCache]: Analyzing trace with hash 21009362, now seen corresponding path program 1 times [2022-11-16 16:59:38,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 16:59:38,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10885762] [2022-11-16 16:59:38,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:59:38,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:59:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:59:39,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:59:39,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 16:59:39,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10885762] [2022-11-16 16:59:39,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10885762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:59:39,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:59:39,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 16:59:39,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473568103] [2022-11-16 16:59:39,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:59:39,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 16:59:39,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 16:59:39,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 16:59:39,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 16:59:39,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:39,031 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 16:59:39,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:59:39,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:39,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 16:59:39,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:59:39,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:59:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 16:59:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:59:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:59:39,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:59:39,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 16:59:39,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:59:39,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1760093631, now seen corresponding path program 1 times [2022-11-16 16:59:39,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 16:59:39,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040503534] [2022-11-16 16:59:39,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:59:39,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:59:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:59:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:59:54,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 16:59:54,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040503534] [2022-11-16 16:59:54,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040503534] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:59:54,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815918491] [2022-11-16 16:59:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:59:54,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:59:54,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 16:59:54,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:59:54,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:59:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:59:54,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-16 16:59:54,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 17:05:21,371 WARN L233 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 17:09:33,756 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse6 (div (- c_~x4~0) (- 2)))) (let ((.cse10 (div (- .cse6) (- 2)))) (let ((.cse0 (- .cse10))) (let ((.cse8 (div .cse0 (- 8))) (.cse7 (div c_~x3~0 2))) (let ((.cse2 (- .cse7)) (.cse9 (- .cse8))) (let ((.cse1 (mod c_~x1~0 4294967296)) (.cse5 (- (mod c_~x4~0 4294967296))) (.cse4 (mod (div .cse9 (- 4)) 4294967296)) (.cse3 (mod (div .cse2 (- 64)) 4294967296))) (and (= 0 (mod (div .cse0 (- 2)) 2)) (< 0 .cse1) (= (mod (div .cse2 (- 32)) 2) 0) (= (mod (div .cse2 (- 16)) 2) 0) (= .cse1 (mod c_~x2~0 4294967296)) (= .cse3 .cse4) (= (mod (div .cse2 (- 2)) 2) 0) (<= (+ (* (div (+ (- 1) .cse5) 4294967296) 4294967296) 4294967297 .cse4) (mod c_~x3~0 4294967296)) (= (mod (div .cse2 (- 4)) 2) 0) (= (mod .cse6 2) 0) (<= (+ 2 .cse4 (* (div (+ .cse5 .cse4) 4294967296) 4294967296)) 0) (= (mod (div .cse0 (- 4)) 2) 0) (< 0 .cse3) (= (mod .cse7 2) 0) (= (mod .cse8 2) 0) (= (mod c_~x4~0 2) 0) (= (mod (div .cse2 (- 8)) 2) 0) (= (mod c_~x3~0 2) 0) (= (mod (div .cse9 (- 2)) 2) 0) (= (mod .cse10 2) 0)))))))) is different from false Received shutdown request... [2022-11-16 17:14:18,821 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-16 17:14:18,822 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-16 17:14:18,824 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-11-16 17:14:19,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-11-16 17:14:19,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 17:14:19,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown