/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-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 12:25:00,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 12:25:00,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 12:25:00,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 12:25:00,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 12:25:00,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 12:25:00,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 12:25:00,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 12:25:00,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 12:25:00,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 12:25:00,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 12:25:00,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 12:25:00,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 12:25:00,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 12:25:00,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 12:25:00,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 12:25:00,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 12:25:00,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 12:25:00,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 12:25:00,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 12:25:00,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 12:25:00,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 12:25:00,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 12:25:00,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 12:25:00,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-16 12:25:00,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-16 12:25:00,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-16 12:25:00,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-16 12:25:00,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-16 12:25:00,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-16 12:25:00,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 12:25:00,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 12:25:00,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 12:25:00,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 12:25:00,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 12:25:00,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 12:25:00,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 12:25:00,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 12:25:00,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 12:25:00,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 12:25:00,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 12:25:00,828 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-BasicCegarLoop.epf [2022-02-16 12:25:00,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 12:25:00,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 12:25:00,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 12:25:00,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 12:25:00,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 12:25:00,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 12:25:00,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 12:25:00,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 12:25:00,867 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 12:25:00,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 12:25:00,868 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 12:25:00,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 12:25:00,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 12:25:00,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 12:25:00,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 12:25:00,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 12:25:00,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 12:25:00,869 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 12:25:00,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 12:25:00,870 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 12:25:00,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 12:25:00,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 12:25:00,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 12:25:00,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 12:25:00,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 12:25:00,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:25:00,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 12:25:00,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 12:25:00,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 12:25:00,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 12:25:00,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 12:25:00,872 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 12:25:00,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 12:25:00,872 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 12:25:00,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 12:25:01,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 12:25:01,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 12:25:01,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 12:25:01,149 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 12:25:01,150 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 12:25:01,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2022-02-16 12:25:01,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619242eaa/e127744d61094288ad48f0d761ef7569/FLAG8b36c4d4f [2022-02-16 12:25:01,661 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 12:25:01,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2022-02-16 12:25:01,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619242eaa/e127744d61094288ad48f0d761ef7569/FLAG8b36c4d4f [2022-02-16 12:25:02,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619242eaa/e127744d61094288ad48f0d761ef7569 [2022-02-16 12:25:02,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 12:25:02,034 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 12:25:02,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 12:25:02,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 12:25:02,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 12:25:02,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f8ad51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02, skipping insertion in model container [2022-02-16 12:25:02,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 12:25:02,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 12:25:02,249 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-wmm/safe022_tso.i[945,958] [2022-02-16 12:25:02,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:25:02,420 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 12:25:02,433 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-wmm/safe022_tso.i[945,958] [2022-02-16 12:25:02,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:25:02,512 INFO L208 MainTranslator]: Completed translation [2022-02-16 12:25:02,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02 WrapperNode [2022-02-16 12:25:02,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 12:25:02,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 12:25:02,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 12:25:02,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 12:25:02,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,568 INFO L137 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-02-16 12:25:02,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 12:25:02,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 12:25:02,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 12:25:02,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 12:25:02,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 12:25:02,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 12:25:02,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 12:25:02,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 12:25:02,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (1/1) ... [2022-02-16 12:25:02,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:25:02,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 12:25:02,657 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) [2022-02-16 12:25:02,680 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 [2022-02-16 12:25:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 12:25:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-16 12:25:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 12:25:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 12:25:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 12:25:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-02-16 12:25:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-02-16 12:25:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-02-16 12:25:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-02-16 12:25:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 12:25:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-16 12:25:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 12:25:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 12:25:02,707 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 12:25:02,840 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 12:25:02,842 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 12:25:02,972 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 12:25:02,978 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 12:25:02,979 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 12:25:02,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:25:02 BoogieIcfgContainer [2022-02-16 12:25:02,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 12:25:02,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 12:25:02,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 12:25:02,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 12:25:02,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 12:25:02" (1/3) ... [2022-02-16 12:25:02,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8f9b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:25:02, skipping insertion in model container [2022-02-16 12:25:02,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:25:02" (2/3) ... [2022-02-16 12:25:02,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8f9b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:25:02, skipping insertion in model container [2022-02-16 12:25:02,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:25:02" (3/3) ... [2022-02-16 12:25:03,000 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2022-02-16 12:25:03,005 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 12:25:03,005 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 12:25:03,005 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 12:25:03,006 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 12:25:03,032 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,032 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,032 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,032 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,033 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,033 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,033 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,033 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,034 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,034 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,034 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,034 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,035 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,035 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,035 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,035 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,036 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,036 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,036 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,036 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,036 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,037 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,037 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,037 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,040 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,041 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,041 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,041 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,043 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,044 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,044 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,044 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:25:03,044 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-16 12:25:03,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 12:25:03,087 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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 [2022-02-16 12:25:03,087 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-16 12:25:03,096 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 75 transitions, 160 flow [2022-02-16 12:25:03,172 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 955 states, 954 states have (on average 2.629979035639413) internal successors, (2509), 954 states have internal predecessors, (2509), 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) [2022-02-16 12:25:03,977 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 22387 transitions and produced 9241 states. [2022-02-16 12:25:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 9241 states, 6911 states have (on average 1.3369989871219794) internal successors, (9240), 9240 states have internal predecessors, (9240), 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) [2022-02-16 12:25:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-02-16 12:25:04,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:25:04,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 12:25:04,166 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 12:25:04,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:25:04,172 INFO L85 PathProgramCache]: Analyzing trace with hash 899280188, now seen corresponding path program 1 times [2022-02-16 12:25:04,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:25:04,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677819299] [2022-02-16 12:25:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:25:04,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:25:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:25:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:25:04,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:25:04,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677819299] [2022-02-16 12:25:04,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677819299] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:25:04,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:25:04,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 12:25:04,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600176438] [2022-02-16 12:25:04,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:25:04,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 12:25:04,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:25:04,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 12:25:04,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-16 12:25:04,737 INFO L87 Difference]: Start difference. First operand has 9241 states, 6911 states have (on average 1.3369989871219794) internal successors, (9240), 9240 states have internal predecessors, (9240), 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) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 12:25:05,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:25:05,034 INFO L93 Difference]: Finished difference Result 5355 states and 5354 transitions. [2022-02-16 12:25:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 12:25:05,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-02-16 12:25:05,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:25:05,058 INFO L225 Difference]: With dead ends: 5355 [2022-02-16 12:25:05,058 INFO L226 Difference]: Without dead ends: 896 [2022-02-16 12:25:05,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-16 12:25:05,062 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 68 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:25:05,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 349 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:25:05,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-02-16 12:25:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 378. [2022-02-16 12:25:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 371 states have (on average 1.1320754716981132) internal successors, (420), 377 states have internal predecessors, (420), 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) [2022-02-16 12:25:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 420 transitions. [2022-02-16 12:25:05,119 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 420 transitions. Word has length 47 [2022-02-16 12:25:05,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:25:05,120 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 420 transitions. [2022-02-16 12:25:05,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 12:25:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 420 transitions. [2022-02-16 12:25:05,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-16 12:25:05,122 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:25:05,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 12:25:05,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 12:25:05,122 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 12:25:05,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:25:05,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2118032539, now seen corresponding path program 1 times [2022-02-16 12:25:05,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:25:05,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669422232] [2022-02-16 12:25:05,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:25:05,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:25:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:25:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:25:05,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:25:05,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669422232] [2022-02-16 12:25:05,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669422232] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:25:05,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:25:05,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 12:25:05,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692433630] [2022-02-16 12:25:05,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:25:05,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 12:25:05,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:25:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 12:25:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-16 12:25:05,290 INFO L87 Difference]: Start difference. First operand 378 states and 420 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2022-02-16 12:25:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:25:05,448 INFO L93 Difference]: Finished difference Result 439 states and 458 transitions. [2022-02-16 12:25:05,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-16 12:25:05,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) Word has length 49 [2022-02-16 12:25:05,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:25:05,450 INFO L225 Difference]: With dead ends: 439 [2022-02-16 12:25:05,450 INFO L226 Difference]: Without dead ends: 223 [2022-02-16 12:25:05,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-02-16 12:25:05,452 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 76 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:25:05,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 277 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:25:05,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-02-16 12:25:05,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-02-16 12:25:05,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 219 states have (on average 1.0730593607305936) internal successors, (235), 222 states have internal predecessors, (235), 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) [2022-02-16 12:25:05,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 235 transitions. [2022-02-16 12:25:05,480 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 235 transitions. Word has length 49 [2022-02-16 12:25:05,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:25:05,480 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 235 transitions. [2022-02-16 12:25:05,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2022-02-16 12:25:05,481 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 235 transitions. [2022-02-16 12:25:05,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-16 12:25:05,482 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:25:05,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 12:25:05,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 12:25:05,483 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 12:25:05,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:25:05,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1944695116, now seen corresponding path program 1 times [2022-02-16 12:25:05,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:25:05,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517879446] [2022-02-16 12:25:05,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:25:05,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:25:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:25:05,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:25:05,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:25:05,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517879446] [2022-02-16 12:25:05,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517879446] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:25:05,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:25:05,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 12:25:05,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356716579] [2022-02-16 12:25:05,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:25:05,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 12:25:05,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:25:05,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 12:25:05,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-16 12:25:05,683 INFO L87 Difference]: Start difference. First operand 223 states and 235 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 12:25:05,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:25:05,757 INFO L93 Difference]: Finished difference Result 201 states and 210 transitions. [2022-02-16 12:25:05,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-16 12:25:05,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-02-16 12:25:05,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:25:05,759 INFO L225 Difference]: With dead ends: 201 [2022-02-16 12:25:05,759 INFO L226 Difference]: Without dead ends: 196 [2022-02-16 12:25:05,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-16 12:25:05,764 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 48 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:25:05,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 214 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:25:05,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-02-16 12:25:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-02-16 12:25:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 192 states have (on average 1.0677083333333333) internal successors, (205), 195 states have internal predecessors, (205), 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) [2022-02-16 12:25:05,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 205 transitions. [2022-02-16 12:25:05,773 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 205 transitions. Word has length 52 [2022-02-16 12:25:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:25:05,773 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 205 transitions. [2022-02-16 12:25:05,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 12:25:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 205 transitions. [2022-02-16 12:25:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-16 12:25:05,775 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:25:05,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 12:25:05,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 12:25:05,775 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 12:25:05,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:25:05,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1769096803, now seen corresponding path program 1 times [2022-02-16 12:25:05,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:25:05,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406270219] [2022-02-16 12:25:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:25:05,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:25:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:25:05,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:25:05,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:25:05,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406270219] [2022-02-16 12:25:05,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406270219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:25:05,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:25:05,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 12:25:05,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440412163] [2022-02-16 12:25:05,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:25:05,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 12:25:05,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:25:05,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 12:25:05,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-16 12:25:05,896 INFO L87 Difference]: Start difference. First operand 196 states and 205 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2022-02-16 12:25:05,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:25:05,974 INFO L93 Difference]: Finished difference Result 130 states and 132 transitions. [2022-02-16 12:25:05,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-16 12:25:05,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) Word has length 53 [2022-02-16 12:25:05,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:25:05,977 INFO L225 Difference]: With dead ends: 130 [2022-02-16 12:25:05,977 INFO L226 Difference]: Without dead ends: 120 [2022-02-16 12:25:05,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-02-16 12:25:05,982 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 78 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:25:05,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 213 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:25:05,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-02-16 12:25:05,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-02-16 12:25:05,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 117 states have (on average 1.0427350427350428) internal successors, (122), 119 states have internal predecessors, (122), 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) [2022-02-16 12:25:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2022-02-16 12:25:05,997 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 53 [2022-02-16 12:25:05,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:25:05,997 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2022-02-16 12:25:05,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2022-02-16 12:25:05,998 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2022-02-16 12:25:05,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-16 12:25:05,999 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:25:05,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 12:25:05,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-16 12:25:05,999 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-16 12:25:06,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:25:06,000 INFO L85 PathProgramCache]: Analyzing trace with hash 513964224, now seen corresponding path program 1 times [2022-02-16 12:25:06,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:25:06,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635546788] [2022-02-16 12:25:06,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:25:06,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:25:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:25:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:25:06,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:25:06,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635546788] [2022-02-16 12:25:06,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635546788] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:25:06,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:25:06,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 12:25:06,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920929746] [2022-02-16 12:25:06,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:25:06,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 12:25:06,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:25:06,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 12:25:06,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-16 12:25:06,122 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2022-02-16 12:25:06,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:25:06,207 INFO L93 Difference]: Finished difference Result 105 states and 104 transitions. [2022-02-16 12:25:06,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-16 12:25:06,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) Word has length 55 [2022-02-16 12:25:06,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:25:06,209 INFO L225 Difference]: With dead ends: 105 [2022-02-16 12:25:06,209 INFO L226 Difference]: Without dead ends: 0 [2022-02-16 12:25:06,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-02-16 12:25:06,213 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 26 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:25:06,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 262 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:25:06,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-16 12:25:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-16 12:25:06,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-02-16 12:25:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-16 12:25:06,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2022-02-16 12:25:06,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:25:06,215 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-16 12:25:06,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2022-02-16 12:25:06,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-16 12:25:06,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-16 12:25:06,218 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-16 12:25:06,218 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-16 12:25:06,218 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-16 12:25:06,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-16 12:25:06,221 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-16 12:25:06,223 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 12:25:06,223 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 12:25:06,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 12:25:06 BasicIcfg [2022-02-16 12:25:06,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 12:25:06,233 INFO L158 Benchmark]: Toolchain (without parser) took 4198.48ms. Allocated memory was 191.9MB in the beginning and 429.9MB in the end (delta: 238.0MB). Free memory was 132.4MB in the beginning and 323.8MB in the end (delta: -191.4MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. [2022-02-16 12:25:06,233 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 191.9MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 12:25:06,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.37ms. Allocated memory was 191.9MB in the beginning and 249.6MB in the end (delta: 57.7MB). Free memory was 132.2MB in the beginning and 210.6MB in the end (delta: -78.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-02-16 12:25:06,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.10ms. Allocated memory is still 249.6MB. Free memory was 210.6MB in the beginning and 208.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 12:25:06,234 INFO L158 Benchmark]: Boogie Preprocessor took 33.86ms. Allocated memory is still 249.6MB. Free memory was 208.5MB in the beginning and 207.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 12:25:06,234 INFO L158 Benchmark]: RCFGBuilder took 376.81ms. Allocated memory is still 249.6MB. Free memory was 207.4MB in the beginning and 194.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-16 12:25:06,234 INFO L158 Benchmark]: TraceAbstraction took 3250.08ms. Allocated memory was 249.6MB in the beginning and 429.9MB in the end (delta: 180.4MB). Free memory was 193.8MB in the beginning and 323.8MB in the end (delta: -130.0MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. [2022-02-16 12:25:06,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 191.9MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 473.37ms. Allocated memory was 191.9MB in the beginning and 249.6MB in the end (delta: 57.7MB). Free memory was 132.2MB in the beginning and 210.6MB in the end (delta: -78.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.10ms. Allocated memory is still 249.6MB. Free memory was 210.6MB in the beginning and 208.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.86ms. Allocated memory is still 249.6MB. Free memory was 208.5MB in the beginning and 207.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 376.81ms. Allocated memory is still 249.6MB. Free memory was 207.4MB in the beginning and 194.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3250.08ms. Allocated memory was 249.6MB in the beginning and 429.9MB in the end (delta: 180.4MB). Free memory was 193.8MB in the beginning and 323.8MB in the end (delta: -130.0MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, PartialOrderReductionTime: 0.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 296 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 296 mSDsluCounter, 1315 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1047 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 298 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9241occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 518 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-16 12:25:06,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...