/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 08:58:39,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 08:58:39,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 08:58:39,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 08:58:39,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 08:58:39,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 08:58:39,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 08:58:39,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 08:58:39,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 08:58:39,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 08:58:39,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 08:58:39,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 08:58:39,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 08:58:39,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 08:58:39,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 08:58:39,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 08:58:39,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 08:58:39,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 08:58:39,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 08:58:39,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 08:58:39,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 08:58:39,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 08:58:39,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 08:58:39,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 08:58:39,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 08:58:39,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 08:58:39,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 08:58:39,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 08:58:39,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 08:58:39,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 08:58:39,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 08:58:39,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 08:58:39,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 08:58:39,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 08:58:39,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 08:58:39,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 08:58:39,334 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-02-19 08:58:39,360 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 08:58:39,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 08:58:39,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 08:58:39,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 08:58:39,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 08:58:39,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 08:58:39,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 08:58:39,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 08:58:39,362 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 08:58:39,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 08:58:39,363 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 08:58:39,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 08:58:39,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 08:58:39,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 08:58:39,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 08:58:39,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 08:58:39,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 08:58:39,364 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 08:58:39,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 08:58:39,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 08:58:39,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 08:58:39,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 08:58:39,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 08:58:39,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 08:58:39,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 08:58:39,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 08:58:39,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 08:58:39,366 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 08:58:39,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 08:58:39,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 08:58:39,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 08:58:39,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 08:58:39,366 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 08:58:39,367 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 08:58:39,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 08:58:39,367 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 08:58:39,367 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 08:58:39,367 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 08:58:39,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 08:58:39,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 08:58:39,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 08:58:39,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 08:58:39,608 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-19 08:58:39,608 INFO L275 PluginConnector]: CDTParser initialized [2022-02-19 08:58:39,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2022-02-19 08:58:39,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16b752116/15cddfc6506b4ee594feff2e42d85e19/FLAGbb0a54ea6 [2022-02-19 08:58:40,027 INFO L306 CDTParser]: Found 1 translation units. [2022-02-19 08:58:40,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2022-02-19 08:58:40,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16b752116/15cddfc6506b4ee594feff2e42d85e19/FLAGbb0a54ea6 [2022-02-19 08:58:40,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16b752116/15cddfc6506b4ee594feff2e42d85e19 [2022-02-19 08:58:40,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 08:58:40,052 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-19 08:58:40,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-19 08:58:40,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-19 08:58:40,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-19 08:58:40,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a18b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40, skipping insertion in model container [2022-02-19 08:58:40,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-19 08:58:40,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-19 08:58:40,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-02-19 08:58:40,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 08:58:40,250 INFO L203 MainTranslator]: Completed pre-run [2022-02-19 08:58:40,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-02-19 08:58:40,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-19 08:58:40,296 INFO L208 MainTranslator]: Completed translation [2022-02-19 08:58:40,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40 WrapperNode [2022-02-19 08:58:40,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-19 08:58:40,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 08:58:40,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 08:58:40,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 08:58:40,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,340 INFO L137 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 161 [2022-02-19 08:58:40,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 08:58:40,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 08:58:40,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 08:58:40,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 08:58:40,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 08:58:40,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 08:58:40,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 08:58:40,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 08:58:40,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (1/1) ... [2022-02-19 08:58:40,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 08:58:40,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 08:58:40,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-19 08:58:40,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-19 08:58:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-19 08:58:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-19 08:58:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-19 08:58:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-19 08:58:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 08:58:40,427 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 08:58:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 08:58:40,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 08:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 08:58:40,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 08:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-19 08:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-19 08:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-19 08:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-19 08:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 08:58:40,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 08:58:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-19 08:58:40,429 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 08:58:40,490 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 08:58:40,491 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 08:58:40,724 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 08:58:40,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 08:58:40,773 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-19 08:58:40,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 08:58:40 BoogieIcfgContainer [2022-02-19 08:58:40,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 08:58:40,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 08:58:40,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 08:58:40,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 08:58:40,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 08:58:40" (1/3) ... [2022-02-19 08:58:40,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd585d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 08:58:40, skipping insertion in model container [2022-02-19 08:58:40,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 08:58:40" (2/3) ... [2022-02-19 08:58:40,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd585d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 08:58:40, skipping insertion in model container [2022-02-19 08:58:40,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 08:58:40" (3/3) ... [2022-02-19 08:58:40,783 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2022-02-19 08:58:40,786 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 08:58:40,786 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 08:58:40,786 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 08:58:40,786 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 08:58:40,813 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,814 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,814 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,814 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,814 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,815 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,816 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,816 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,816 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,816 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,816 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,817 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,817 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,821 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,821 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,821 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,821 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,821 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,821 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,821 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,822 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,822 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,822 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,822 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,822 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,822 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,822 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,822 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,823 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,823 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,823 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,823 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,823 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,823 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,823 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,824 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,824 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,824 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,824 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,824 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,825 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,825 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,827 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,827 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 08:58:40,833 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-19 08:58:40,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 08:58:40,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 08:58:40,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 08:58:40,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 08:58:40,882 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 08:58:40,886 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, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-02-19 08:58:40,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-19 08:58:40,946 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 154 transitions and produced 155 states. [2022-02-19 08:58:40,947 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 08:58:40,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 08:58:40,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1014193275, now seen corresponding path program 1 times [2022-02-19 08:58:40,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 08:58:40,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454485873] [2022-02-19 08:58:40,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 08:58:40,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 08:58:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 08:58:41,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 08:58:41,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 08:58:41,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454485873] [2022-02-19 08:58:41,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454485873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 08:58:41,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 08:58:41,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-19 08:58:41,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321539879] [2022-02-19 08:58:41,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 08:58:41,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-19 08:58:41,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 08:58:41,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-19 08:58:41,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-19 08:58:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:41,182 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 08:58:41,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 08:58:41,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:41,244 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 154 transitions and produced 155 states. [2022-02-19 08:58:41,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:41,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 08:58:41,245 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 08:58:41,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 08:58:41,248 INFO L85 PathProgramCache]: Analyzing trace with hash 608738793, now seen corresponding path program 1 times [2022-02-19 08:58:41,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 08:58:41,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896294362] [2022-02-19 08:58:41,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 08:58:41,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 08:58:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 08:58:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 08:58:41,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 08:58:41,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896294362] [2022-02-19 08:58:41,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896294362] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 08:58:41,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 08:58:41,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-19 08:58:41,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858588331] [2022-02-19 08:58:41,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 08:58:41,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-19 08:58:41,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 08:58:41,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-19 08:58:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-19 08:58:41,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:41,430 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 08:58:41,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 08:58:41,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:41,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:41,828 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 194 transitions and produced 189 states. [2022-02-19 08:58:41,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:41,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:58:41,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 08:58:41,829 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 08:58:41,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 08:58:41,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1879086871, now seen corresponding path program 1 times [2022-02-19 08:58:41,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 08:58:41,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909792764] [2022-02-19 08:58:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 08:58:41,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 08:58:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 08:58:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-19 08:58:41,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 08:58:41,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909792764] [2022-02-19 08:58:41,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909792764] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 08:58:41,972 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 08:58:41,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-19 08:58:41,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099304290] [2022-02-19 08:58:41,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 08:58:41,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-19 08:58:41,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 08:58:41,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-19 08:58:41,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-19 08:58:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:41,975 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 08:58:41,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 08:58:41,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:41,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:58:41,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:48,507 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3475 transitions and produced 1565 states. [2022-02-19 08:58:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:58:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:58:48,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-19 08:58:48,509 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 08:58:48,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 08:58:48,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2021016281, now seen corresponding path program 1 times [2022-02-19 08:58:48,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 08:58:48,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660693908] [2022-02-19 08:58:48,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 08:58:48,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 08:58:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 08:58:48,749 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-02-19 08:58:48,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 08:58:48,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660693908] [2022-02-19 08:58:48,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660693908] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 08:58:48,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 08:58:48,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-19 08:58:48,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130565119] [2022-02-19 08:58:48,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 08:58:48,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-19 08:58:48,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 08:58:48,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-19 08:58:48,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-19 08:58:48,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:48,756 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 08:58:48,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 08:58:48,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:58:48,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:58:48,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:58:48,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:07,952 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 13457 transitions and produced 5207 states. [2022-02-19 08:59:07,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:07,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:07,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:07,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 08:59:07,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-19 08:59:07,954 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 08:59:07,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 08:59:07,954 INFO L85 PathProgramCache]: Analyzing trace with hash 660227495, now seen corresponding path program 1 times [2022-02-19 08:59:07,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 08:59:07,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556554972] [2022-02-19 08:59:07,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 08:59:07,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 08:59:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 08:59:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2022-02-19 08:59:08,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 08:59:08,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556554972] [2022-02-19 08:59:08,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556554972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 08:59:08,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 08:59:08,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 08:59:08,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851355355] [2022-02-19 08:59:08,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 08:59:08,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 08:59:08,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 08:59:08,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 08:59:08,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 08:59:08,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:08,099 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 08:59:08,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 08:59:08,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:08,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:08,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:08,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 08:59:08,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:13,718 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2877 transitions and produced 1380 states. [2022-02-19 08:59:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 08:59:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 08:59:13,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-19 08:59:13,719 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 08:59:13,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 08:59:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1010520721, now seen corresponding path program 2 times [2022-02-19 08:59:13,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 08:59:13,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247144450] [2022-02-19 08:59:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 08:59:13,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 08:59:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 08:59:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 141 proven. 2 refuted. 0 times theorem prover too weak. 1151 trivial. 0 not checked. [2022-02-19 08:59:13,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 08:59:13,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247144450] [2022-02-19 08:59:13,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247144450] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 08:59:13,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414496957] [2022-02-19 08:59:13,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 08:59:13,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 08:59:13,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 08:59:13,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 08:59:13,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 08:59:13,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 08:59:13,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 08:59:14,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-19 08:59:14,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 08:59:14,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2022-02-19 08:59:14,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-19 08:59:14,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414496957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 08:59:14,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-19 08:59:14,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-02-19 08:59:14,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129292146] [2022-02-19 08:59:14,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 08:59:14,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-19 08:59:14,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 08:59:14,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-19 08:59:14,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-19 08:59:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:14,449 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 08:59:14,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 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) [2022-02-19 08:59:14,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:14,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:14,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:14,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 08:59:14,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 08:59:14,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:19,570 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1420 transitions and produced 1032 states. [2022-02-19 08:59:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 08:59:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 08:59:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 08:59:19,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 08:59:19,772 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,SelfDestructingSolverStorable5 [2022-02-19 08:59:19,773 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 08:59:19,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 08:59:19,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1429351978, now seen corresponding path program 3 times [2022-02-19 08:59:19,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 08:59:19,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040914749] [2022-02-19 08:59:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 08:59:19,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 08:59:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 08:59:20,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2342 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 2062 trivial. 0 not checked. [2022-02-19 08:59:20,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 08:59:20,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040914749] [2022-02-19 08:59:20,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040914749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 08:59:20,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 08:59:20,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-19 08:59:20,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672559227] [2022-02-19 08:59:20,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 08:59:20,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-19 08:59:20,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 08:59:20,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-19 08:59:20,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-19 08:59:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:20,027 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 08:59:20,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 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) [2022-02-19 08:59:20,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 08:59:20,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:20,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-19 08:59:20,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 08:59:20,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 08:59:20,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 08:59:20,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.