/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 07:00:36,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 07:00:36,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 07:00:36,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 07:00:36,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 07:00:36,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 07:00:36,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 07:00:36,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 07:00:36,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 07:00:36,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 07:00:36,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 07:00:36,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 07:00:36,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 07:00:36,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 07:00:36,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 07:00:36,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 07:00:36,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 07:00:36,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 07:00:36,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 07:00:36,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 07:00:36,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 07:00:36,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 07:00:36,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 07:00:36,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 07:00:36,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 07:00:36,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 07:00:36,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 07:00:36,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 07:00:36,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 07:00:36,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 07:00:36,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 07:00:36,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 07:00:36,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 07:00:36,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 07:00:36,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 07:00:36,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 07:00:36,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 07:00:36,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 07:00:36,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 07:00:36,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 07:00:36,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 07:00:36,533 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-MCRwithoutDepranks-Lazy.epf [2022-02-20 07:00:36,554 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 07:00:36,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 07:00:36,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 07:00:36,555 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 07:00:36,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 07:00:36,555 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 07:00:36,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 07:00:36,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 07:00:36,556 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 07:00:36,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 07:00:36,556 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 07:00:36,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 07:00:36,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 07:00:36,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 07:00:36,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 07:00:36,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 07:00:36,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 07:00:36,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 07:00:36,558 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 07:00:36,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 07:00:36,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 07:00:36,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 07:00:36,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 07:00:36,558 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 07:00:36,558 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 07:00:36,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 07:00:36,558 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 07:00:36,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 07:00:36,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 07:00:36,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 07:00:36,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 07:00:36,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 07:00:36,778 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 07:00:36,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i [2022-02-20 07:00:36,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f680f31ad/e8bd4e71c83a43b88779f4946b353c88/FLAG69e6abb14 [2022-02-20 07:00:37,227 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 07:00:37,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i [2022-02-20 07:00:37,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f680f31ad/e8bd4e71c83a43b88779f4946b353c88/FLAG69e6abb14 [2022-02-20 07:00:37,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f680f31ad/e8bd4e71c83a43b88779f4946b353c88 [2022-02-20 07:00:37,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 07:00:37,601 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-20 07:00:37,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 07:00:37,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 07:00:37,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 07:00:37,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:00:37" (1/1) ... [2022-02-20 07:00:37,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@293756c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:37, skipping insertion in model container [2022-02-20 07:00:37,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 07:00:37" (1/1) ... [2022-02-20 07:00:37,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 07:00:37,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 07:00:37,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i[30003,30016] [2022-02-20 07:00:37,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 07:00:37,929 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 07:00:37,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i[30003,30016] [2022-02-20 07:00:37,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 07:00:38,026 INFO L208 MainTranslator]: Completed translation [2022-02-20 07:00:38,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38 WrapperNode [2022-02-20 07:00:38,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 07:00:38,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 07:00:38,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 07:00:38,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 07:00:38,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,093 INFO L137 Inliner]: procedures = 175, calls = 23, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 98 [2022-02-20 07:00:38,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 07:00:38,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 07:00:38,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 07:00:38,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 07:00:38,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 07:00:38,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 07:00:38,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 07:00:38,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 07:00:38,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (1/1) ... [2022-02-20 07:00:38,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 07:00:38,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:00:38,156 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) [2022-02-20 07:00:38,163 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 [2022-02-20 07:00:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-02-20 07:00:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-02-20 07:00:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 07:00:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-20 07:00:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 07:00:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 07:00:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 07:00:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 07:00:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-20 07:00:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 07:00:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 07:00:38,185 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 07:00:38,272 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 07:00:38,274 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 07:00:38,437 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 07:00:38,457 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 07:00:38,457 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 07:00:38,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:00:38 BoogieIcfgContainer [2022-02-20 07:00:38,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 07:00:38,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 07:00:38,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 07:00:38,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 07:00:38,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 07:00:37" (1/3) ... [2022-02-20 07:00:38,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2a88a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:00:38, skipping insertion in model container [2022-02-20 07:00:38,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 07:00:38" (2/3) ... [2022-02-20 07:00:38,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2a88a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 07:00:38, skipping insertion in model container [2022-02-20 07:00:38,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 07:00:38" (3/3) ... [2022-02-20 07:00:38,465 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2022-02-20 07:00:38,468 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 07:00:38,469 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 07:00:38,469 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 07:00:38,469 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 07:00:38,496 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,496 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,496 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,497 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,497 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,497 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,497 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,497 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,498 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,498 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,498 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,498 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,498 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,498 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,499 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,499 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,499 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,499 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,499 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,499 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,499 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,499 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,500 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,500 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,500 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,500 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,501 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,501 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,501 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,501 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,501 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,501 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,501 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,502 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,503 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,503 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,503 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,503 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,503 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,503 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,503 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,504 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,504 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,504 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,504 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,505 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,505 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,505 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,505 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,505 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,505 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,505 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,506 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,506 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,506 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,506 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,507 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,507 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,507 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,507 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,510 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,510 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,510 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,510 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,511 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,511 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,511 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,511 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,511 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,511 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,511 WARN L322 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 07:00:38,512 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-20 07:00:38,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 07:00:38,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 07:00:38,553 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) [2022-02-20 07:00:38,554 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 [2022-02-20 07:00:38,587 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 07:00:38,592 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=true, mMcrOverapproximateWrwc=true [2022-02-20 07:00:38,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 07:00:38,751 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 74 transitions and produced 75 states. [2022-02-20 07:00:38,754 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-20 07:00:38,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:00:38,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1022990879, now seen corresponding path program 1 times [2022-02-20 07:00:38,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:00:38,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482164087] [2022-02-20 07:00:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:00:38,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:00:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:00:39,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:00:39,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:00:39,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482164087] [2022-02-20 07:00:39,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482164087] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 07:00:39,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 07:00:39,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 07:00:39,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177396843] [2022-02-20 07:00:39,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 07:00:39,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 07:00:39,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:00:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 07:00:39,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 07:00:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:00:39,044 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:00:39,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-02-20 07:00:39,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:00:39,159 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 74 transitions and produced 75 states. [2022-02-20 07:00:39,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:00:39,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 07:00:39,161 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-20 07:00:39,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 07:00:39,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1274572337, now seen corresponding path program 1 times [2022-02-20 07:00:39,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 07:00:39,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299667692] [2022-02-20 07:00:39,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 07:00:39,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 07:00:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 07:00:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 07:00:39,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 07:00:39,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299667692] [2022-02-20 07:00:39,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299667692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 07:00:39,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 07:00:39,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 07:00:39,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134669045] [2022-02-20 07:00:39,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 07:00:39,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-20 07:00:39,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 07:00:39,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-20 07:00:39,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-20 07:00:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 07:00:39,296 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 07:00:39,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2022-02-20 07:00:39,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 07:00:39,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.