/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-30.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-13 23:10:10,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:10:10,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:10:10,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:10:10,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:10:10,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:10:10,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:10:10,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:10:10,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:10:10,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:10:10,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:10:10,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:10:10,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:10:10,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:10:10,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:10:10,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:10:10,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:10:10,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:10:10,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:10:10,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:10:10,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:10:10,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:10:10,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:10:10,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:10:10,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:10:10,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:10:10,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:10:10,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:10:10,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:10:10,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:10:10,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:10:10,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:10:10,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:10:10,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:10:10,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:10:10,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:10:10,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:10:10,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:10:10,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:10:10,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:10:10,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:10:10,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-11-13 23:10:10,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:10:10,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:10:10,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 23:10:10,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 23:10:10,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:10:10,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 23:10:10,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:10:10,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:10:10,232 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 23:10:10,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:10:10,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:10:10,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:10:10,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 23:10:10,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-13 23:10:10,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 23:10:10,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 23:10:10,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:10:10,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:10:10,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:10:10,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 23:10:10,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:10:10,235 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 23:10:10,235 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-13 23:10:10,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:10:10,235 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-13 23:10:10,236 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-13 23:10:10,236 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-13 23:10:10,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:10:10,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:10:10,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:10:10,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:10:10,434 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:10:10,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-30.i [2021-11-13 23:10:10,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/704cbc0b5/a264f3980b9a49fa95439612bca7194e/FLAGf5b54fdef [2021-11-13 23:10:10,878 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:10:10,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-30.i [2021-11-13 23:10:10,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/704cbc0b5/a264f3980b9a49fa95439612bca7194e/FLAGf5b54fdef [2021-11-13 23:10:10,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/704cbc0b5/a264f3980b9a49fa95439612bca7194e [2021-11-13 23:10:10,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:10:10,912 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 23:10:10,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:10:10,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:10:10,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:10:10,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:10:10" (1/1) ... [2021-11-13 23:10:10,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6985030c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:10, skipping insertion in model container [2021-11-13 23:10:10,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:10:10" (1/1) ... [2021-11-13 23:10:10,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:10:10,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:10:11,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-30.i[30190,30203] [2021-11-13 23:10:11,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:10:11,178 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:10:11,200 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-30.i[30190,30203] [2021-11-13 23:10:11,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:10:11,225 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:10:11,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11 WrapperNode [2021-11-13 23:10:11,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:10:11,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:10:11,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:10:11,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:10:11,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:10:11,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:10:11,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:10:11,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:10:11,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:10:11,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:10:11,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:10:11,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:10:11,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (1/1) ... [2021-11-13 23:10:11,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 23:10:11,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:11,336 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) [2021-11-13 23:10:11,343 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 [2021-11-13 23:10:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 23:10:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2021-11-13 23:10:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2021-11-13 23:10:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 23:10:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-13 23:10:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-13 23:10:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 23:10:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 23:10:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2021-11-13 23:10:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2021-11-13 23:10:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 23:10:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-13 23:10:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:10:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:10:11,370 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 23:10:11,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:10:11,636 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-13 23:10:11,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:10:11 BoogieIcfgContainer [2021-11-13 23:10:11,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:10:11,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 23:10:11,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 23:10:11,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 23:10:11,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:10:10" (1/3) ... [2021-11-13 23:10:11,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eedca8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:10:11, skipping insertion in model container [2021-11-13 23:10:11,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:11" (2/3) ... [2021-11-13 23:10:11,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eedca8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:10:11, skipping insertion in model container [2021-11-13 23:10:11,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:10:11" (3/3) ... [2021-11-13 23:10:11,644 INFO L111 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-30.i [2021-11-13 23:10:11,647 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 23:10:11,648 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 23:10:11,648 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 23:10:11,648 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 23:10:11,677 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,677 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,678 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,678 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,678 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,678 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,678 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,678 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,681 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,681 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,682 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,682 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,682 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,682 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,682 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,683 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,683 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,683 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,683 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,683 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,684 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,684 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,684 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,684 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,689 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,690 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,690 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,690 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of1ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,694 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,694 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,695 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,695 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of1ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:11,699 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-13 23:10:11,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:11,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:11,746 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) [2021-11-13 23:10:11,747 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 [2021-11-13 23:10:11,771 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of1ForFork1 ======== [2021-11-13 23:10:11,777 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:11,777 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 23:10:11,877 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:11,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:11,881 INFO L85 PathProgramCache]: Analyzing trace with hash -211201094, now seen corresponding path program 1 times [2021-11-13 23:10:11,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:11,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415109411] [2021-11-13 23:10:11,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:11,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:12,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:12,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415109411] [2021-11-13 23:10:12,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415109411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:12,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:12,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:12,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796906341] [2021-11-13 23:10:12,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:12,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:12,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:12,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:12,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,067 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:12,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2021-11-13 23:10:12,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 23:10:12,080 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:12,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash -407714599, now seen corresponding path program 1 times [2021-11-13 23:10:12,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:12,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143014957] [2021-11-13 23:10:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:12,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:12,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:12,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143014957] [2021-11-13 23:10:12,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143014957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:12,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:12,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:12,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669394941] [2021-11-13 23:10:12,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:12,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:12,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:12,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:12,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:12,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,163 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:12,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-11-13 23:10:12,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:12,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 23:10:12,245 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:12,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:12,246 INFO L85 PathProgramCache]: Analyzing trace with hash 269435223, now seen corresponding path program 1 times [2021-11-13 23:10:12,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:12,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140994728] [2021-11-13 23:10:12,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:12,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:12,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:12,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140994728] [2021-11-13 23:10:12,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140994728] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:12,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558782570] [2021-11-13 23:10:12,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:12,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:12,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:12,306 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) [2021-11-13 23:10:12,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 23:10:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:12,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:12,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:12,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:12,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558782570] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:12,712 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:12,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:12,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63755493] [2021-11-13 23:10:12,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:12,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:12,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:12,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:12,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:12,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,715 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:12,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 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) [2021-11-13 23:10:12,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:12,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:12,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:12,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 23:10:12,799 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 23:10:12,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:13,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-13 23:10:13,019 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 23:10:13,019 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread1of1ForFork1 was SAFE (1/2) [2021-11-13 23:10:13,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:13,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:13,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:13,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-11-13 23:10:13,024 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-13 23:10:13,025 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:13,025 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 23:10:13,055 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:13,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1507342292, now seen corresponding path program 1 times [2021-11-13 23:10:13,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:13,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114222705] [2021-11-13 23:10:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:13,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:13,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:13,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:13,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114222705] [2021-11-13 23:10:13,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114222705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:13,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:13,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:13,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597954117] [2021-11-13 23:10:13,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:13,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:13,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:13,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:13,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,112 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:13,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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) [2021-11-13 23:10:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 23:10:13,115 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:13,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash -154032595, now seen corresponding path program 1 times [2021-11-13 23:10:13,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:13,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110241552] [2021-11-13 23:10:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:13,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:13,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:13,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110241552] [2021-11-13 23:10:13,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110241552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:13,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:13,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:13,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863111101] [2021-11-13 23:10:13,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:13,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:13,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:13,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:13,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,137 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:13,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-13 23:10:13,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:13,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 23:10:13,159 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:13,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:13,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1897890732, now seen corresponding path program 1 times [2021-11-13 23:10:13,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:13,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316199272] [2021-11-13 23:10:13,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:13,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:13,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:13,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316199272] [2021-11-13 23:10:13,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316199272] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:13,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792776064] [2021-11-13 23:10:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:13,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:13,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:13,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:13,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 23:10:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:13,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:13,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:13,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:13,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792776064] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:13,453 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:13,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:13,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548532332] [2021-11-13 23:10:13,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:13,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:13,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:13,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:13,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:13,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,456 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:13,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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) [2021-11-13 23:10:13,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:13,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 23:10:13,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:13,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:13,710 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:13,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:13,711 INFO L85 PathProgramCache]: Analyzing trace with hash -121871665, now seen corresponding path program 1 times [2021-11-13 23:10:13,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:13,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835080479] [2021-11-13 23:10:13,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:13,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:10:13,719 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:10:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:10:13,738 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 23:10:13,738 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 23:10:13,738 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2021-11-13 23:10:13,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-13 23:10:13,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 23:10:13,740 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 23:10:13,740 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2021-11-13 23:10:13,740 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-13 23:10:13,740 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-13 23:10:13,745 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,745 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,745 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,745 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,745 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,745 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,745 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,746 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,747 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,748 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,749 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,749 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,749 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,749 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,749 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,749 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,749 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,749 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,750 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,750 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,750 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,750 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of2ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,750 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,750 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,750 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,750 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,751 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,751 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,751 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,751 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,751 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,751 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of2ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:13,753 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-11-13 23:10:13,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:13,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:13,754 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:13,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2021-11-13 23:10:13,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of2ForFork1 ======== [2021-11-13 23:10:13,758 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:13,758 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 23:10:13,817 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:13,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:13,818 INFO L85 PathProgramCache]: Analyzing trace with hash -341074863, now seen corresponding path program 1 times [2021-11-13 23:10:13,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:13,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024267187] [2021-11-13 23:10:13,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:13,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:13,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:13,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:13,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024267187] [2021-11-13 23:10:13,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024267187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:13,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:13,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:13,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101307349] [2021-11-13 23:10:13,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:13,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:13,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:13,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:13,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,855 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:13,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2021-11-13 23:10:13,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 23:10:13,864 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:13,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:13,865 INFO L85 PathProgramCache]: Analyzing trace with hash -537588368, now seen corresponding path program 1 times [2021-11-13 23:10:13,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:13,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133018798] [2021-11-13 23:10:13,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:13,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:13,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:13,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133018798] [2021-11-13 23:10:13,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133018798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:13,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:13,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:13,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980045820] [2021-11-13 23:10:13,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:13,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:13,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:13,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:13,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:13,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,888 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:13,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-11-13 23:10:13,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:13,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:13,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 23:10:13,944 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:13,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:13,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1353950055, now seen corresponding path program 1 times [2021-11-13 23:10:13,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:13,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861446872] [2021-11-13 23:10:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:13,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:13,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:13,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861446872] [2021-11-13 23:10:13,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861446872] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:13,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430187805] [2021-11-13 23:10:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:13,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:13,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:13,989 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:14,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 23:10:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:14,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:14,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:14,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:14,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:14,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430187805] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:14,217 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:14,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:14,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427759213] [2021-11-13 23:10:14,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:14,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:14,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:14,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:14,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,218 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:14,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 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) [2021-11-13 23:10:14,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:14,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:14,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 23:10:14,332 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 23:10:14,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:14,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:14,549 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 23:10:14,549 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread1of2ForFork1 was SAFE (1/3) [2021-11-13 23:10:14,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:14,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:14,551 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:14,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2021-11-13 23:10:14,554 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread2of2ForFork1 ======== [2021-11-13 23:10:14,554 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:14,554 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 23:10:14,592 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:14,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:14,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1368402137, now seen corresponding path program 1 times [2021-11-13 23:10:14,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:14,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778831131] [2021-11-13 23:10:14,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:14,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:14,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:14,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778831131] [2021-11-13 23:10:14,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778831131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:14,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:14,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:14,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755116239] [2021-11-13 23:10:14,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:14,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:14,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:14,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:14,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:14,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,605 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:14,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 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) [2021-11-13 23:10:14,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 23:10:14,608 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:14,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1435408890, now seen corresponding path program 1 times [2021-11-13 23:10:14,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:14,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64281994] [2021-11-13 23:10:14,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:14,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:14,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:14,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:14,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64281994] [2021-11-13 23:10:14,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64281994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:14,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:14,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:14,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084193384] [2021-11-13 23:10:14,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:14,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:14,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:14,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:14,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,624 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:14,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 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) [2021-11-13 23:10:14,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:14,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 23:10:14,648 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:14,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:14,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1580908477, now seen corresponding path program 1 times [2021-11-13 23:10:14,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:14,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952978060] [2021-11-13 23:10:14,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:14,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:14,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:14,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952978060] [2021-11-13 23:10:14,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952978060] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:14,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280888523] [2021-11-13 23:10:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:14,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:14,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:14,677 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:14,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-13 23:10:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:14,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:14,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:14,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:10:14,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280888523] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:14,920 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:14,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:14,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069068860] [2021-11-13 23:10:14,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:14,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:14,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:14,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:14,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:14,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,921 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:14,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 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) [2021-11-13 23:10:14,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:14,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:14,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 23:10:15,007 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 23:10:15,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:15,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-13 23:10:15,224 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 23:10:15,224 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread2of2ForFork1 was SAFE (2/3) [2021-11-13 23:10:15,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:15,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:15,227 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:15,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2021-11-13 23:10:15,230 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-13 23:10:15,230 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:15,230 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 23:10:15,269 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:15,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:15,270 INFO L85 PathProgramCache]: Analyzing trace with hash -833843574, now seen corresponding path program 1 times [2021-11-13 23:10:15,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:15,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772638378] [2021-11-13 23:10:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:15,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:15,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:15,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772638378] [2021-11-13 23:10:15,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772638378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:15,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:15,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:15,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613967143] [2021-11-13 23:10:15,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:15,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:15,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:15,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:15,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,292 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:15,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2021-11-13 23:10:15,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 23:10:15,295 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:15,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:15,296 INFO L85 PathProgramCache]: Analyzing trace with hash 127770443, now seen corresponding path program 1 times [2021-11-13 23:10:15,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:15,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851836574] [2021-11-13 23:10:15,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:15,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:15,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:15,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851836574] [2021-11-13 23:10:15,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851836574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:15,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:15,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:15,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268413094] [2021-11-13 23:10:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:15,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:15,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:15,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:15,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:15,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,309 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:15,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-11-13 23:10:15,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:15,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 23:10:15,329 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:15,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:15,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1443866943, now seen corresponding path program 1 times [2021-11-13 23:10:15,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:15,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607687349] [2021-11-13 23:10:15,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:15,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:15,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:15,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607687349] [2021-11-13 23:10:15,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607687349] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:15,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659751024] [2021-11-13 23:10:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:15,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:15,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:15,352 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:15,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-13 23:10:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:15,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:15,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:15,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:15,538 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:15,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659751024] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:15,538 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:15,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:15,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535776989] [2021-11-13 23:10:15,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:15,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:15,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:15,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:15,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:15,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,539 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:15,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 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) [2021-11-13 23:10:15,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:15,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:15,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 23:10:15,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:15,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-13 23:10:15,798 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:15,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:15,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1479036618, now seen corresponding path program 1 times [2021-11-13 23:10:15,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:15,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294659360] [2021-11-13 23:10:15,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:15,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:10:15,805 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:10:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:10:15,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 23:10:15,814 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 23:10:15,814 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2021-11-13 23:10:15,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-13 23:10:15,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 23:10:15,815 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 23:10:15,815 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/3) [2021-11-13 23:10:15,815 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-13 23:10:15,815 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-13 23:10:15,820 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,820 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,820 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,821 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,822 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,823 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,824 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,825 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of3ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,826 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,827 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,827 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,827 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,827 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,827 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of3ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:15,828 INFO L148 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2021-11-13 23:10:15,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:15,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:15,830 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:15,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2021-11-13 23:10:15,832 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-13 23:10:15,833 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:15,833 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 23:10:15,865 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:15,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:15,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1180890360, now seen corresponding path program 1 times [2021-11-13 23:10:15,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:15,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790305582] [2021-11-13 23:10:15,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:15,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:15,873 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:15,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:15,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790305582] [2021-11-13 23:10:15,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790305582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:15,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:15,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:15,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379038947] [2021-11-13 23:10:15,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:15,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:15,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:15,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:15,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:15,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,874 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:15,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 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) [2021-11-13 23:10:15,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-13 23:10:15,878 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:15,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:15,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1510656121, now seen corresponding path program 1 times [2021-11-13 23:10:15,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:15,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182576942] [2021-11-13 23:10:15,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:15,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:15,889 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:15,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:15,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182576942] [2021-11-13 23:10:15,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182576942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:15,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:15,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:15,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588478974] [2021-11-13 23:10:15,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:15,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:15,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:15,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:15,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:15,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,890 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:15,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-11-13 23:10:15,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:15,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:15,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-13 23:10:15,910 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:15,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2125452762, now seen corresponding path program 1 times [2021-11-13 23:10:15,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:15,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413488680] [2021-11-13 23:10:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:15,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:15,930 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:15,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:15,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413488680] [2021-11-13 23:10:15,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413488680] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:15,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025956278] [2021-11-13 23:10:15,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:15,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:15,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:15,932 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:15,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-13 23:10:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:15,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:15,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:16,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:16,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025956278] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:16,158 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:16,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:16,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676184267] [2021-11-13 23:10:16,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:16,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:16,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:16,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:16,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:16,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:16,159 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:16,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 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) [2021-11-13 23:10:16,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:16,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:16,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:16,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:16,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:16,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:16,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:16,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:16,450 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:16,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:16,450 INFO L85 PathProgramCache]: Analyzing trace with hash 589266911, now seen corresponding path program 1 times [2021-11-13 23:10:16,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:16,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96145402] [2021-11-13 23:10:16,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:16,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-13 23:10:16,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:16,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96145402] [2021-11-13 23:10:16,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96145402] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:16,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531047874] [2021-11-13 23:10:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:16,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:16,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:16,484 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:16,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-13 23:10:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:16,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 23:10:16,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:16,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:16,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531047874] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:16,869 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:16,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2021-11-13 23:10:16,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539105935] [2021-11-13 23:10:16,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:16,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 23:10:16,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:16,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 23:10:16,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-11-13 23:10:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:16,870 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:16,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 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) [2021-11-13 23:10:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 23:10:16,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:17,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-13 23:10:17,151 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:17,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash 531540147, now seen corresponding path program 1 times [2021-11-13 23:10:17,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:17,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620935115] [2021-11-13 23:10:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:17,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:10:17,158 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:10:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:10:17,167 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 23:10:17,168 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 23:10:17,168 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-13 23:10:17,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 2 remaining) [2021-11-13 23:10:17,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-13 23:10:17,169 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-13 23:10:17,169 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/4) [2021-11-13 23:10:17,169 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-13 23:10:17,169 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,185 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,186 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,187 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,187 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,187 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,187 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,187 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,188 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,189 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,190 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,191 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,194 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,194 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,194 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,194 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,195 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,195 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,195 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,195 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,195 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,195 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,195 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,195 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of4ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,196 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,197 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,197 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,197 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,197 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,197 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,197 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,197 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,197 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of4ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,197 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:17,209 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-11-13 23:10:17,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:17,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:17,211 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:17,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2021-11-13 23:10:17,219 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread4of4ForFork1 ======== [2021-11-13 23:10:17,219 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:17,219 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 23:10:17,279 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:17,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:17,279 INFO L85 PathProgramCache]: Analyzing trace with hash -292138606, now seen corresponding path program 1 times [2021-11-13 23:10:17,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:17,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009136824] [2021-11-13 23:10:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:17,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:17,290 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:17,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:17,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009136824] [2021-11-13 23:10:17,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009136824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:17,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:17,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:17,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841587979] [2021-11-13 23:10:17,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:17,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:17,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:17,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:17,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:17,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,291 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:17,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2021-11-13 23:10:17,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-13 23:10:17,295 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:17,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:17,295 INFO L85 PathProgramCache]: Analyzing trace with hash 477031409, now seen corresponding path program 1 times [2021-11-13 23:10:17,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:17,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923848475] [2021-11-13 23:10:17,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:17,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:17,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:17,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923848475] [2021-11-13 23:10:17,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923848475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:17,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:17,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:17,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793831026] [2021-11-13 23:10:17,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:17,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:17,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:17,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:17,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:17,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,309 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:17,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-13 23:10:17,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:17,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-13 23:10:17,347 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:17,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:17,347 INFO L85 PathProgramCache]: Analyzing trace with hash -959640894, now seen corresponding path program 1 times [2021-11-13 23:10:17,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:17,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139925547] [2021-11-13 23:10:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:17,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:17,371 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:17,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:17,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139925547] [2021-11-13 23:10:17,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139925547] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:17,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142971421] [2021-11-13 23:10:17,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:17,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:17,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:17,373 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:17,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-13 23:10:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:17,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:17,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:17,571 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:17,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:17,691 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:17,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142971421] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:17,691 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:17,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:17,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938819455] [2021-11-13 23:10:17,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:17,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:17,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:17,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:17,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:17,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,692 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:17,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 23:10:17,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:17,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:17,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-11-13 23:10:17,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:17,998 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:17,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:17,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1151422631, now seen corresponding path program 1 times [2021-11-13 23:10:17,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:17,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291424474] [2021-11-13 23:10:17,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:17,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-13 23:10:18,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:18,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291424474] [2021-11-13 23:10:18,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291424474] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:18,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268136039] [2021-11-13 23:10:18,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:18,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:18,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:18,025 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:18,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-13 23:10:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:18,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 23:10:18,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:18,265 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:18,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:18,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268136039] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:18,470 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:18,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2021-11-13 23:10:18,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465767781] [2021-11-13 23:10:18,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:18,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 23:10:18,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:18,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 23:10:18,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-11-13 23:10:18,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:18,472 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:18,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.473684210526315) internal successors, (180), 19 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 23:10:18,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:18,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:18,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:18,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 23:10:20,380 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 23:10:20,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-11-13 23:10:20,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-13 23:10:20,596 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 23:10:20,596 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread4of4ForFork1 was SAFE (1/5) [2021-11-13 23:10:20,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:20,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:20,597 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:20,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2021-11-13 23:10:20,600 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread3of4ForFork1 ======== [2021-11-13 23:10:20,600 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:20,600 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 23:10:20,658 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1638889098, now seen corresponding path program 1 times [2021-11-13 23:10:20,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:20,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451777186] [2021-11-13 23:10:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:20,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:20,666 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:20,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:20,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451777186] [2021-11-13 23:10:20,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451777186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:20,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:20,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:20,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770784311] [2021-11-13 23:10:20,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:20,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:20,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:20,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:20,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:20,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,667 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:20,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2021-11-13 23:10:20,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-13 23:10:20,670 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:20,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:20,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1023274199, now seen corresponding path program 1 times [2021-11-13 23:10:20,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:20,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177386910] [2021-11-13 23:10:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:20,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:20,681 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:20,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:20,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177386910] [2021-11-13 23:10:20,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177386910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:20,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:20,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:20,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405719020] [2021-11-13 23:10:20,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:20,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:20,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:20,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:20,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:20,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,683 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:20,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-13 23:10:20,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:20,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-13 23:10:20,717 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:20,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:20,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1845689414, now seen corresponding path program 1 times [2021-11-13 23:10:20,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:20,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869725123] [2021-11-13 23:10:20,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:20,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:20,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:20,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869725123] [2021-11-13 23:10:20,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869725123] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:20,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109279086] [2021-11-13 23:10:20,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:20,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:20,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:20,738 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:20,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-13 23:10:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:20,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:20,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:20,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:20,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109279086] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:20,989 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:20,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:20,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944245298] [2021-11-13 23:10:20,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:20,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:20,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:20,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:20,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,990 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:20,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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) [2021-11-13 23:10:20,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:20,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:20,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:21,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:21,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:21,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-13 23:10:21,293 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:21,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:21,294 INFO L85 PathProgramCache]: Analyzing trace with hash -908170095, now seen corresponding path program 1 times [2021-11-13 23:10:21,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:21,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326315740] [2021-11-13 23:10:21,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:21,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-13 23:10:21,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:21,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326315740] [2021-11-13 23:10:21,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326315740] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:21,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428149476] [2021-11-13 23:10:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:21,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:21,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:21,319 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:21,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-13 23:10:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:21,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 23:10:21,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:21,648 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:21,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:21,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428149476] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:21,850 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:21,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2021-11-13 23:10:21,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538656377] [2021-11-13 23:10:21,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:21,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 23:10:21,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:21,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 23:10:21,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-11-13 23:10:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:21,852 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:21,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 19 states have internal predecessors, (175), 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) [2021-11-13 23:10:21,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:21,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:21,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:21,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 23:10:23,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 23:10:23,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:23,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:23,740 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 23:10:23,740 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread3of4ForFork1 was SAFE (2/5) [2021-11-13 23:10:23,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:23,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:23,742 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:23,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process [2021-11-13 23:10:23,744 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-13 23:10:23,744 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:23,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 23:10:23,766 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:23,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:23,766 INFO L85 PathProgramCache]: Analyzing trace with hash -196281834, now seen corresponding path program 1 times [2021-11-13 23:10:23,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:23,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677019281] [2021-11-13 23:10:23,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:23,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-13 23:10:23,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:23,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677019281] [2021-11-13 23:10:23,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677019281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:23,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:23,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:23,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480259683] [2021-11-13 23:10:23,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:23,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:23,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:23,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:23,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:23,779 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:23,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-11-13 23:10:23,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:23,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-13 23:10:23,783 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:23,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:23,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1774657623, now seen corresponding path program 1 times [2021-11-13 23:10:23,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:23,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44680708] [2021-11-13 23:10:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:23,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-13 23:10:23,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:23,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44680708] [2021-11-13 23:10:23,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44680708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:23,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:23,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:23,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784043560] [2021-11-13 23:10:23,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:23,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:23,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:23,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:23,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:23,799 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:23,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-13 23:10:23,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:23,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:23,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-13 23:10:23,820 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:23,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:23,820 INFO L85 PathProgramCache]: Analyzing trace with hash -688195387, now seen corresponding path program 1 times [2021-11-13 23:10:23,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:23,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191437457] [2021-11-13 23:10:23,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:23,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-13 23:10:23,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:23,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191437457] [2021-11-13 23:10:23,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191437457] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:23,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739216537] [2021-11-13 23:10:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:23,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:23,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:23,843 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:23,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-13 23:10:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:23,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:23,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:23,988 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-13 23:10:23,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-13 23:10:24,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739216537] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:24,074 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:24,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:24,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100392553] [2021-11-13 23:10:24,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:24,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:24,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:24,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:24,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:24,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:24,076 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:24,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 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) [2021-11-13 23:10:24,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:24,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:24,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:24,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:24,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:24,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-11-13 23:10:24,355 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:24,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:24,356 INFO L85 PathProgramCache]: Analyzing trace with hash -300163996, now seen corresponding path program 1 times [2021-11-13 23:10:24,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:24,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342356354] [2021-11-13 23:10:24,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:24,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-13 23:10:24,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:24,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342356354] [2021-11-13 23:10:24,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342356354] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:24,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706443451] [2021-11-13 23:10:24,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:24,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:24,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:24,386 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:24,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-13 23:10:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:24,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 23:10:24,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-13 23:10:24,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-13 23:10:24,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706443451] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:24,790 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:24,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2021-11-13 23:10:24,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839269762] [2021-11-13 23:10:24,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:24,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 23:10:24,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:24,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 23:10:24,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-11-13 23:10:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:24,792 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:24,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 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) [2021-11-13 23:10:24,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:24,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:24,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:24,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 23:10:24,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:25,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:25,099 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-13 23:10:25,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:25,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1304944362, now seen corresponding path program 1 times [2021-11-13 23:10:25,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:25,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893041343] [2021-11-13 23:10:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:25,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:10:25,108 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:10:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:10:25,128 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 23:10:25,128 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 23:10:25,128 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 2 remaining) [2021-11-13 23:10:25,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-13 23:10:25,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-13 23:10:25,129 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-13 23:10:25,130 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/5) [2021-11-13 23:10:25,130 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-13 23:10:25,130 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-13 23:10:25,140 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,140 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,140 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,141 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,142 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,143 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,144 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,145 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,146 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#in~param.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,147 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe setThreadThread1of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,148 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,149 WARN L322 ript$VariableManager]: TermVariabe setThreadThread2of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,149 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,149 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,149 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,149 WARN L322 ript$VariableManager]: TermVariabe setThreadThread3of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,149 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,149 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe setThreadThread4of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe setThreadThread5of5ForFork0_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe |setThreadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread1of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,150 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,151 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,151 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,151 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread2of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,151 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,151 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,151 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,151 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread3of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,151 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,152 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,152 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,152 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread4of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,152 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,152 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,152 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,152 WARN L322 ript$VariableManager]: TermVariabe |checkThreadThread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,152 WARN L322 ript$VariableManager]: TermVariabe checkThreadThread5of5ForFork1_~param.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 23:10:25,155 INFO L148 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2021-11-13 23:10:25,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:25,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:25,156 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:25,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2021-11-13 23:10:25,160 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread3of5ForFork1 ======== [2021-11-13 23:10:25,160 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:25,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 23:10:25,239 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:25,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:25,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1235245373, now seen corresponding path program 1 times [2021-11-13 23:10:25,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:25,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845230188] [2021-11-13 23:10:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:25,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:25,253 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:25,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:25,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845230188] [2021-11-13 23:10:25,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845230188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:25,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:25,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:25,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887195501] [2021-11-13 23:10:25,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:25,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:25,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:25,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:25,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:25,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,255 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:25,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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) [2021-11-13 23:10:25,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-13 23:10:25,258 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:25,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:25,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1426917924, now seen corresponding path program 1 times [2021-11-13 23:10:25,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:25,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153773648] [2021-11-13 23:10:25,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:25,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:25,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:25,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153773648] [2021-11-13 23:10:25,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153773648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:25,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:25,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:25,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147077412] [2021-11-13 23:10:25,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:25,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:25,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:25,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:25,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,275 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:25,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-13 23:10:25,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:25,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-13 23:10:25,322 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:25,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:25,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1018841525, now seen corresponding path program 1 times [2021-11-13 23:10:25,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:25,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057238276] [2021-11-13 23:10:25,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:25,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:25,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:25,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057238276] [2021-11-13 23:10:25,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057238276] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:25,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621152070] [2021-11-13 23:10:25,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:25,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:25,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:25,343 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:25,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-13 23:10:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:25,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:25,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:25,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:25,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621152070] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:25,645 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:25,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:25,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661758722] [2021-11-13 23:10:25,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:25,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:25,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:25,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:25,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:25,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,647 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:25,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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) [2021-11-13 23:10:25,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:25,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:25,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:25,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-13 23:10:25,952 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:25,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2033703412, now seen corresponding path program 1 times [2021-11-13 23:10:25,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:25,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776055433] [2021-11-13 23:10:25,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:25,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-13 23:10:25,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:25,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776055433] [2021-11-13 23:10:25,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776055433] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:25,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568597202] [2021-11-13 23:10:25,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:25,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:25,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:25,977 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:26,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-13 23:10:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:26,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 23:10:26,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:26,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-13 23:10:26,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568597202] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:26,409 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:26,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2021-11-13 23:10:26,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905707297] [2021-11-13 23:10:26,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:26,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 23:10:26,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 23:10:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-11-13 23:10:26,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:26,411 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:26,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 19 states have internal predecessors, (175), 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) [2021-11-13 23:10:26,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:26,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:26,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:26,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 23:10:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 23:10:37,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:38,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-13 23:10:38,171 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 23:10:38,171 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread3of5ForFork1 was SAFE (1/6) [2021-11-13 23:10:38,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:38,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:38,172 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:38,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2021-11-13 23:10:38,324 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread4of5ForFork1 ======== [2021-11-13 23:10:38,324 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:38,324 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 23:10:38,410 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:38,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:38,410 INFO L85 PathProgramCache]: Analyzing trace with hash -240992089, now seen corresponding path program 1 times [2021-11-13 23:10:38,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:38,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541557747] [2021-11-13 23:10:38,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:38,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:38,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:38,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541557747] [2021-11-13 23:10:38,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541557747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:38,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:38,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:38,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213212643] [2021-11-13 23:10:38,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:38,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:38,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:38,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:38,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,419 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:38,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2021-11-13 23:10:38,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-13 23:10:38,422 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:38,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:38,423 INFO L85 PathProgramCache]: Analyzing trace with hash 528177926, now seen corresponding path program 1 times [2021-11-13 23:10:38,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:38,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093399511] [2021-11-13 23:10:38,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:38,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:38,432 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:38,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:38,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093399511] [2021-11-13 23:10:38,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093399511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:38,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:38,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:38,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65037190] [2021-11-13 23:10:38,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:38,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:38,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:38,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:38,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,434 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:38,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-13 23:10:38,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:38,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-13 23:10:38,469 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:38,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:38,470 INFO L85 PathProgramCache]: Analyzing trace with hash -680362209, now seen corresponding path program 1 times [2021-11-13 23:10:38,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:38,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5456591] [2021-11-13 23:10:38,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:38,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:38,491 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:38,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:38,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5456591] [2021-11-13 23:10:38,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5456591] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:38,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114716934] [2021-11-13 23:10:38,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:38,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:38,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:38,493 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:38,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-13 23:10:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:38,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:38,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:38,673 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:38,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:38,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114716934] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:38,782 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:38,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:38,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297388628] [2021-11-13 23:10:38,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:38,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:38,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:38,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:38,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,783 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:38,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 23:10:38,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:38,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:38,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-11-13 23:10:39,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:39,105 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:39,105 INFO L85 PathProgramCache]: Analyzing trace with hash 530609974, now seen corresponding path program 1 times [2021-11-13 23:10:39,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:39,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956529550] [2021-11-13 23:10:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:39,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-13 23:10:39,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:39,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956529550] [2021-11-13 23:10:39,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956529550] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:39,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864963246] [2021-11-13 23:10:39,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:39,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:39,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:39,131 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:39,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-13 23:10:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:39,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 23:10:39,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:39,365 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:39,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:39,578 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 23:10:39,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864963246] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:39,578 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:39,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2021-11-13 23:10:39,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459547016] [2021-11-13 23:10:39,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:39,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 23:10:39,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:39,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 23:10:39,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-11-13 23:10:39,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:39,580 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:39,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.473684210526315) internal successors, (180), 19 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 23:10:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:51,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 23:10:51,423 INFO L764 garLoopResultBuilder]: Registering result SAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 23:10:51,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:51,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:51,625 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 23:10:51,625 INFO L308 ceAbstractionStarter]: Result for error location checkThreadThread4of5ForFork1 was SAFE (2/6) [2021-11-13 23:10:51,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 23:10:51,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:51,626 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 23:10:51,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process [2021-11-13 23:10:51,776 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == checkThreadThread1of5ForFork1 ======== [2021-11-13 23:10:51,776 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 23:10:51,777 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 23:10:52,048 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:52,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1279268902, now seen corresponding path program 1 times [2021-11-13 23:10:52,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:52,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832629110] [2021-11-13 23:10:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:52,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:52,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:52,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832629110] [2021-11-13 23:10:52,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832629110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:52,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:52,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 23:10:52,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830787407] [2021-11-13 23:10:52,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:52,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 23:10:52,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:52,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 23:10:52,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 23:10:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,057 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:52,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2021-11-13 23:10:52,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-13 23:10:52,058 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:52,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1082755397, now seen corresponding path program 1 times [2021-11-13 23:10:52,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:52,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997142623] [2021-11-13 23:10:52,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:52,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:52,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:52,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997142623] [2021-11-13 23:10:52,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997142623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:52,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:52,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 23:10:52,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214798678] [2021-11-13 23:10:52,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:52,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 23:10:52,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:52,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 23:10:52,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 23:10:52,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,068 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:52,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-11-13 23:10:52,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:52,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-13 23:10:52,178 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:52,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:52,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1387064478, now seen corresponding path program 1 times [2021-11-13 23:10:52,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:52,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976374879] [2021-11-13 23:10:52,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:52,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:52,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:52,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976374879] [2021-11-13 23:10:52,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976374879] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 23:10:52,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682296101] [2021-11-13 23:10:52,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:52,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 23:10:52,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-13 23:10:52,206 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 23:10:52,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-13 23:10:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:52,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 23:10:52,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:10:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:52,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 23:10:52,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:10:52,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682296101] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 23:10:52,406 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 23:10:52,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 23:10:52,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766014122] [2021-11-13 23:10:52,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 23:10:52,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 23:10:52,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:52,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 23:10:52,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 23:10:52,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,407 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:52,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 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) [2021-11-13 23:10:52,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:52,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:52,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:52,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-13 23:10:52,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-11-13 23:10:52,786 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 23:10:52,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:10:52,786 INFO L85 PathProgramCache]: Analyzing trace with hash -942153355, now seen corresponding path program 1 times [2021-11-13 23:10:52,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 23:10:52,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085890372] [2021-11-13 23:10:52,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 23:10:52,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:10:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:10:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-13 23:10:52,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 23:10:52,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085890372] [2021-11-13 23:10:52,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085890372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 23:10:52,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 23:10:52,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 23:10:52,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126654251] [2021-11-13 23:10:52,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 23:10:52,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 23:10:52,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 23:10:52,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 23:10:52,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 23:10:52,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,809 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 23:10:52,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 23:10:52,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 23:10:52,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 23:10:52,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-13 23:10:52,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.