/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-08 23:59:14,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-08 23:59:14,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-08 23:59:14,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-08 23:59:14,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-08 23:59:14,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-08 23:59:14,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-08 23:59:14,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-08 23:59:14,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-08 23:59:14,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-08 23:59:14,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-08 23:59:14,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-08 23:59:14,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-08 23:59:14,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-08 23:59:14,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-08 23:59:14,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-08 23:59:14,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-08 23:59:14,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-08 23:59:14,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-08 23:59:14,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-08 23:59:14,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-08 23:59:14,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-08 23:59:14,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-08 23:59:14,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-08 23:59:14,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-08 23:59:14,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-08 23:59:14,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-08 23:59:14,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-08 23:59:14,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-08 23:59:14,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-08 23:59:14,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-08 23:59:14,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-08 23:59:14,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-08 23:59:14,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-08 23:59:14,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-08 23:59:14,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-08 23:59:14,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-08 23:59:14,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-08 23:59:14,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-08 23:59:14,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-08 23:59:14,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-08 23:59:14,647 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-FA-NoLbe.epf [2022-02-08 23:59:14,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-08 23:59:14,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-08 23:59:14,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-08 23:59:14,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-08 23:59:14,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-08 23:59:14,676 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-08 23:59:14,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-08 23:59:14,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-08 23:59:14,676 INFO L138 SettingsManager]: * Use SBE=true [2022-02-08 23:59:14,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-08 23:59:14,677 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-08 23:59:14,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-08 23:59:14,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-08 23:59:14,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-08 23:59:14,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-08 23:59:14,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-08 23:59:14,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-08 23:59:14,678 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-08 23:59:14,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-08 23:59:14,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-08 23:59:14,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-08 23:59:14,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-08 23:59:14,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-08 23:59:14,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-08 23:59:14,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-08 23:59:14,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-08 23:59:14,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-08 23:59:14,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-08 23:59:14,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-08 23:59:14,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-08 23:59:14,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-08 23:59:14,680 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-08 23:59:14,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-08 23:59:14,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-08 23:59:14,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-08 23:59:14,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-08 23:59:14,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-08 23:59:14,958 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-08 23:59:14,959 INFO L275 PluginConnector]: CDTParser initialized [2022-02-08 23:59:14,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-08 23:59:15,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6560d9a38/d4e9c9c0a7ea473aa9a05dd1ce0f3dda/FLAG66fa3f760 [2022-02-08 23:59:15,501 INFO L306 CDTParser]: Found 1 translation units. [2022-02-08 23:59:15,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-08 23:59:15,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6560d9a38/d4e9c9c0a7ea473aa9a05dd1ce0f3dda/FLAG66fa3f760 [2022-02-08 23:59:15,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6560d9a38/d4e9c9c0a7ea473aa9a05dd1ce0f3dda [2022-02-08 23:59:15,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-08 23:59:15,833 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-08 23:59:15,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-08 23:59:15,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-08 23:59:15,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-08 23:59:15,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:59:15" (1/1) ... [2022-02-08 23:59:15,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9afa8fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:15, skipping insertion in model container [2022-02-08 23:59:15,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:59:15" (1/1) ... [2022-02-08 23:59:15,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-08 23:59:15,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-08 23:59:16,058 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-08 23:59:16,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-08 23:59:16,172 INFO L203 MainTranslator]: Completed pre-run [2022-02-08 23:59:16,183 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-08 23:59:16,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-08 23:59:16,239 INFO L208 MainTranslator]: Completed translation [2022-02-08 23:59:16,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16 WrapperNode [2022-02-08 23:59:16,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-08 23:59:16,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-08 23:59:16,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-08 23:59:16,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-08 23:59:16,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,301 INFO L137 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2022-02-08 23:59:16,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-08 23:59:16,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-08 23:59:16,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-08 23:59:16,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-08 23:59:16,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-08 23:59:16,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-08 23:59:16,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-08 23:59:16,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-08 23:59:16,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (1/1) ... [2022-02-08 23:59:16,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-08 23:59:16,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-08 23:59:16,385 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) [2022-02-08 23:59:16,407 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 [2022-02-08 23:59:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-08 23:59:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-08 23:59:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-08 23:59:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-08 23:59:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-08 23:59:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-02-08 23:59:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-02-08 23:59:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-02-08 23:59:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-02-08 23:59:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-02-08 23:59:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-02-08 23:59:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-02-08 23:59:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-02-08 23:59:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-08 23:59:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-08 23:59:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-08 23:59:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-08 23:59:16,429 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-08 23:59:16,583 INFO L234 CfgBuilder]: Building ICFG [2022-02-08 23:59:16,584 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-08 23:59:16,825 INFO L275 CfgBuilder]: Performing block encoding [2022-02-08 23:59:16,832 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-08 23:59:16,832 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-08 23:59:16,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.02 11:59:16 BoogieIcfgContainer [2022-02-08 23:59:16,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-08 23:59:16,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-08 23:59:16,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-08 23:59:16,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-08 23:59:16,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 11:59:15" (1/3) ... [2022-02-08 23:59:16,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fa81f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:59:16, skipping insertion in model container [2022-02-08 23:59:16,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:59:16" (2/3) ... [2022-02-08 23:59:16,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fa81f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:59:16, skipping insertion in model container [2022-02-08 23:59:16,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.02 11:59:16" (3/3) ... [2022-02-08 23:59:16,844 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-08 23:59:16,849 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-08 23:59:16,849 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-08 23:59:16,850 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-08 23:59:16,850 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-08 23:59:16,896 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,896 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,896 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,896 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,896 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,897 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,897 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,897 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,897 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,898 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,898 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,899 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,899 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,899 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,899 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,899 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,900 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,900 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,900 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,900 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,901 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,901 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,901 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,901 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,904 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,904 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,904 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,904 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,904 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,904 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,904 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,905 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,905 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,905 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,905 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,905 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,906 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,906 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,906 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,906 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,906 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,907 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,907 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,907 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,908 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,915 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,916 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,916 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,916 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,918 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,918 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,919 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,919 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,920 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,920 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,920 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,920 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,922 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,922 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,923 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,923 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-08 23:59:16,923 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-08 23:59:16,971 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-08 23:59:16,984 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 [2022-02-08 23:59:16,985 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-08 23:59:17,002 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 111 transitions, 242 flow [2022-02-08 23:59:19,199 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46039 states, 46038 states have (on average 4.366371258525565) internal successors, (201019), 46038 states have internal predecessors, (201019), 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) [2022-02-08 23:59:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 46039 states, 46038 states have (on average 4.366371258525565) internal successors, (201019), 46038 states have internal predecessors, (201019), 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) [2022-02-08 23:59:19,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-08 23:59:19,586 INFO L506 BasicCegarLoop]: Found error trace [2022-02-08 23:59:19,587 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-08 23:59:19,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-08 23:59:19,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-08 23:59:19,594 INFO L85 PathProgramCache]: Analyzing trace with hash -535922452, now seen corresponding path program 1 times [2022-02-08 23:59:19,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-08 23:59:19,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586875200] [2022-02-08 23:59:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-08 23:59:19,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-08 23:59:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-08 23:59:20,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-08 23:59:20,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-08 23:59:20,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586875200] [2022-02-08 23:59:20,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586875200] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-08 23:59:20,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-08 23:59:20,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-08 23:59:20,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666987182] [2022-02-08 23:59:20,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-08 23:59:20,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-08 23:59:20,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-08 23:59:20,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-08 23:59:20,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-08 23:59:20,226 INFO L87 Difference]: Start difference. First operand has 46039 states, 46038 states have (on average 4.366371258525565) internal successors, (201019), 46038 states have internal predecessors, (201019), 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 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2022-02-08 23:59:21,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-08 23:59:21,882 INFO L93 Difference]: Finished difference Result 57932 states and 248838 transitions. [2022-02-08 23:59:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-08 23:59:21,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2022-02-08 23:59:21,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-08 23:59:22,511 INFO L225 Difference]: With dead ends: 57932 [2022-02-08 23:59:22,512 INFO L226 Difference]: Without dead ends: 43526 [2022-02-08 23:59:22,513 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 [2022-02-08 23:59:22,517 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 114 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-08 23:59:22,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 599 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-08 23:59:22,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43526 states. [2022-02-08 23:59:24,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43526 to 43526. [2022-02-08 23:59:24,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43526 states, 43525 states have (on average 4.306145893164848) internal successors, (187425), 43525 states have internal predecessors, (187425), 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) [2022-02-08 23:59:25,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43526 states to 43526 states and 187425 transitions. [2022-02-08 23:59:25,163 INFO L78 Accepts]: Start accepts. Automaton has 43526 states and 187425 transitions. Word has length 65 [2022-02-08 23:59:25,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-08 23:59:25,165 INFO L470 AbstractCegarLoop]: Abstraction has 43526 states and 187425 transitions. [2022-02-08 23:59:25,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2022-02-08 23:59:25,166 INFO L276 IsEmpty]: Start isEmpty. Operand 43526 states and 187425 transitions. [2022-02-08 23:59:25,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-08 23:59:25,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-08 23:59:25,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-08 23:59:25,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-08 23:59:25,330 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-08 23:59:25,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-08 23:59:25,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1026739403, now seen corresponding path program 1 times [2022-02-08 23:59:25,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-08 23:59:25,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117679256] [2022-02-08 23:59:25,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-08 23:59:25,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-08 23:59:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-08 23:59:25,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-08 23:59:25,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-08 23:59:25,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117679256] [2022-02-08 23:59:25,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117679256] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-08 23:59:25,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-08 23:59:25,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-08 23:59:25,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735597021] [2022-02-08 23:59:25,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-08 23:59:25,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-08 23:59:25,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-08 23:59:25,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-08 23:59:25,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-08 23:59:25,598 INFO L87 Difference]: Start difference. First operand 43526 states and 187425 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-08 23:59:26,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-08 23:59:26,568 INFO L93 Difference]: Finished difference Result 50561 states and 216163 transitions. [2022-02-08 23:59:26,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-08 23:59:26,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-02-08 23:59:26,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-08 23:59:26,961 INFO L225 Difference]: With dead ends: 50561 [2022-02-08 23:59:26,962 INFO L226 Difference]: Without dead ends: 38836 [2022-02-08 23:59:26,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-02-08 23:59:26,967 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 203 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-08 23:59:26,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 689 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-08 23:59:27,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38836 states. [2022-02-08 23:59:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38836 to 38836. [2022-02-08 23:59:28,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38836 states, 38835 states have (on average 4.275344405819493) internal successors, (166033), 38835 states have internal predecessors, (166033), 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) [2022-02-08 23:59:29,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38836 states to 38836 states and 166033 transitions. [2022-02-08 23:59:29,148 INFO L78 Accepts]: Start accepts. Automaton has 38836 states and 166033 transitions. Word has length 67 [2022-02-08 23:59:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-08 23:59:29,149 INFO L470 AbstractCegarLoop]: Abstraction has 38836 states and 166033 transitions. [2022-02-08 23:59:29,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-08 23:59:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 38836 states and 166033 transitions. [2022-02-08 23:59:29,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-08 23:59:29,218 INFO L506 BasicCegarLoop]: Found error trace [2022-02-08 23:59:29,218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-08 23:59:29,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-08 23:59:29,218 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-08 23:59:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-08 23:59:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash -632887251, now seen corresponding path program 1 times [2022-02-08 23:59:29,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-08 23:59:29,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123213244] [2022-02-08 23:59:29,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-08 23:59:29,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-08 23:59:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-08 23:59:29,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-08 23:59:29,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-08 23:59:29,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123213244] [2022-02-08 23:59:29,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123213244] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-08 23:59:29,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-08 23:59:29,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-08 23:59:29,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970113430] [2022-02-08 23:59:29,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-08 23:59:29,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-08 23:59:29,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-08 23:59:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-08 23:59:29,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-08 23:59:29,378 INFO L87 Difference]: Start difference. First operand 38836 states and 166033 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-08 23:59:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-08 23:59:30,540 INFO L93 Difference]: Finished difference Result 72256 states and 308399 transitions. [2022-02-08 23:59:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-08 23:59:30,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-02-08 23:59:30,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-08 23:59:31,140 INFO L225 Difference]: With dead ends: 72256 [2022-02-08 23:59:31,140 INFO L226 Difference]: Without dead ends: 49056 [2022-02-08 23:59:31,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-02-08 23:59:31,141 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 319 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-08 23:59:31,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 849 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-08 23:59:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49056 states. [2022-02-08 23:59:32,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49056 to 49056. [2022-02-08 23:59:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49056 states, 49055 states have (on average 4.284762001834675) internal successors, (210189), 49055 states have internal predecessors, (210189), 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) [2022-02-08 23:59:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49056 states to 49056 states and 210189 transitions. [2022-02-08 23:59:33,104 INFO L78 Accepts]: Start accepts. Automaton has 49056 states and 210189 transitions. Word has length 67 [2022-02-08 23:59:33,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-08 23:59:33,104 INFO L470 AbstractCegarLoop]: Abstraction has 49056 states and 210189 transitions. [2022-02-08 23:59:33,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-08 23:59:33,105 INFO L276 IsEmpty]: Start isEmpty. Operand 49056 states and 210189 transitions. [2022-02-08 23:59:33,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-08 23:59:33,572 INFO L506 BasicCegarLoop]: Found error trace [2022-02-08 23:59:33,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-08 23:59:33,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-08 23:59:33,572 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-08 23:59:33,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-08 23:59:33,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1387759690, now seen corresponding path program 1 times [2022-02-08 23:59:33,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-08 23:59:33,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691615067] [2022-02-08 23:59:33,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-08 23:59:33,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-08 23:59:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-08 23:59:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-08 23:59:33,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-08 23:59:33,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691615067] [2022-02-08 23:59:33,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691615067] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-08 23:59:33,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-08 23:59:33,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-08 23:59:33,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349378623] [2022-02-08 23:59:33,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-08 23:59:33,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-08 23:59:33,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-08 23:59:33,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-08 23:59:33,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-02-08 23:59:33,738 INFO L87 Difference]: Start difference. First operand 49056 states and 210189 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-08 23:59:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-08 23:59:34,697 INFO L93 Difference]: Finished difference Result 62366 states and 265642 transitions. [2022-02-08 23:59:34,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-08 23:59:34,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-02-08 23:59:34,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-08 23:59:34,824 INFO L225 Difference]: With dead ends: 62366 [2022-02-08 23:59:34,824 INFO L226 Difference]: Without dead ends: 26341 [2022-02-08 23:59:34,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-08 23:59:34,825 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 355 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-08 23:59:34,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 612 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-08 23:59:34,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26341 states. [2022-02-08 23:59:35,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26341 to 26341. [2022-02-08 23:59:35,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26341 states, 26340 states have (on average 4.134092634776006) internal successors, (108892), 26340 states have internal predecessors, (108892), 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) [2022-02-08 23:59:35,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26341 states to 26341 states and 108892 transitions. [2022-02-08 23:59:35,787 INFO L78 Accepts]: Start accepts. Automaton has 26341 states and 108892 transitions. Word has length 69 [2022-02-08 23:59:35,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-08 23:59:35,788 INFO L470 AbstractCegarLoop]: Abstraction has 26341 states and 108892 transitions. [2022-02-08 23:59:35,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-08 23:59:35,789 INFO L276 IsEmpty]: Start isEmpty. Operand 26341 states and 108892 transitions. [2022-02-08 23:59:35,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-08 23:59:35,830 INFO L506 BasicCegarLoop]: Found error trace [2022-02-08 23:59:35,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-08 23:59:35,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-08 23:59:35,830 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-08 23:59:35,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-08 23:59:35,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1910014754, now seen corresponding path program 1 times [2022-02-08 23:59:35,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-08 23:59:35,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368415962] [2022-02-08 23:59:35,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-08 23:59:35,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-08 23:59:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-08 23:59:35,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-08 23:59:35,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-08 23:59:35,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368415962] [2022-02-08 23:59:35,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368415962] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-08 23:59:35,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-08 23:59:35,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-08 23:59:35,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052713348] [2022-02-08 23:59:35,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-08 23:59:35,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-08 23:59:35,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-08 23:59:35,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-08 23:59:35,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-08 23:59:35,930 INFO L87 Difference]: Start difference. First operand 26341 states and 108892 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-08 23:59:36,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-08 23:59:36,609 INFO L93 Difference]: Finished difference Result 37681 states and 154669 transitions. [2022-02-08 23:59:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-08 23:59:36,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-02-08 23:59:36,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-08 23:59:36,669 INFO L225 Difference]: With dead ends: 37681 [2022-02-08 23:59:36,669 INFO L226 Difference]: Without dead ends: 16366 [2022-02-08 23:59:36,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-02-08 23:59:36,672 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 241 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-08 23:59:36,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 611 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-08 23:59:36,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16366 states. [2022-02-08 23:59:37,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16366 to 16366. [2022-02-08 23:59:37,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16366 states, 16365 states have (on average 3.985945615643141) internal successors, (65230), 16365 states have internal predecessors, (65230), 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) [2022-02-08 23:59:37,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16366 states to 16366 states and 65230 transitions. [2022-02-08 23:59:37,366 INFO L78 Accepts]: Start accepts. Automaton has 16366 states and 65230 transitions. Word has length 70 [2022-02-08 23:59:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-08 23:59:37,367 INFO L470 AbstractCegarLoop]: Abstraction has 16366 states and 65230 transitions. [2022-02-08 23:59:37,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-08 23:59:37,367 INFO L276 IsEmpty]: Start isEmpty. Operand 16366 states and 65230 transitions. [2022-02-08 23:59:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-08 23:59:37,407 INFO L506 BasicCegarLoop]: Found error trace [2022-02-08 23:59:37,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-08 23:59:37,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-08 23:59:37,408 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-08 23:59:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-08 23:59:37,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1966872657, now seen corresponding path program 1 times [2022-02-08 23:59:37,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-08 23:59:37,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066795587] [2022-02-08 23:59:37,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-08 23:59:37,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-08 23:59:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-08 23:59:37,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-08 23:59:37,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-08 23:59:37,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066795587] [2022-02-08 23:59:37,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066795587] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-08 23:59:37,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-08 23:59:37,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-08 23:59:37,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764235153] [2022-02-08 23:59:37,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-08 23:59:37,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-08 23:59:37,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-08 23:59:37,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-08 23:59:37,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-08 23:59:37,531 INFO L87 Difference]: Start difference. First operand 16366 states and 65230 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2022-02-08 23:59:37,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-08 23:59:37,799 INFO L93 Difference]: Finished difference Result 24066 states and 95097 transitions. [2022-02-08 23:59:37,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-08 23:59:37,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 73 [2022-02-08 23:59:37,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-08 23:59:37,830 INFO L225 Difference]: With dead ends: 24066 [2022-02-08 23:59:37,831 INFO L226 Difference]: Without dead ends: 9751 [2022-02-08 23:59:37,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-02-08 23:59:37,832 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 203 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-08 23:59:37,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 599 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-08 23:59:37,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9751 states. [2022-02-08 23:59:38,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9751 to 9751. [2022-02-08 23:59:38,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9751 states, 9750 states have (on average 3.84625641025641) internal successors, (37501), 9750 states have internal predecessors, (37501), 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) [2022-02-08 23:59:38,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9751 states to 9751 states and 37501 transitions. [2022-02-08 23:59:38,315 INFO L78 Accepts]: Start accepts. Automaton has 9751 states and 37501 transitions. Word has length 73 [2022-02-08 23:59:38,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-08 23:59:38,316 INFO L470 AbstractCegarLoop]: Abstraction has 9751 states and 37501 transitions. [2022-02-08 23:59:38,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2022-02-08 23:59:38,316 INFO L276 IsEmpty]: Start isEmpty. Operand 9751 states and 37501 transitions. [2022-02-08 23:59:38,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-08 23:59:38,332 INFO L506 BasicCegarLoop]: Found error trace [2022-02-08 23:59:38,333 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-08 23:59:38,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-08 23:59:38,333 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-08 23:59:38,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-08 23:59:38,333 INFO L85 PathProgramCache]: Analyzing trace with hash -739770806, now seen corresponding path program 1 times [2022-02-08 23:59:38,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-08 23:59:38,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879277215] [2022-02-08 23:59:38,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-08 23:59:38,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-08 23:59:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-08 23:59:38,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-08 23:59:38,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-08 23:59:38,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879277215] [2022-02-08 23:59:38,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879277215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-08 23:59:38,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-08 23:59:38,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-08 23:59:38,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980487619] [2022-02-08 23:59:38,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-08 23:59:38,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-08 23:59:38,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-08 23:59:38,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-08 23:59:38,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-02-08 23:59:38,443 INFO L87 Difference]: Start difference. First operand 9751 states and 37501 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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) [2022-02-08 23:59:38,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-08 23:59:38,610 INFO L93 Difference]: Finished difference Result 9111 states and 34909 transitions. [2022-02-08 23:59:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-08 23:59:38,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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 76 [2022-02-08 23:59:38,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-08 23:59:38,611 INFO L225 Difference]: With dead ends: 9111 [2022-02-08 23:59:38,611 INFO L226 Difference]: Without dead ends: 0 [2022-02-08 23:59:38,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-08 23:59:38,615 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 226 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-08 23:59:38,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 479 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-08 23:59:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-08 23:59:38,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-08 23:59:38,617 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) [2022-02-08 23:59:38,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-08 23:59:38,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2022-02-08 23:59:38,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-08 23:59:38,617 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-08 23:59:38,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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) [2022-02-08 23:59:38,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-08 23:59:38,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-08 23:59:38,620 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-02-08 23:59:38,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-08 23:59:38,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-08 23:59:38,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-08 23:59:38,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-08 23:59:38,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-08 23:59:38,624 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-02-08 23:59:38,625 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-08 23:59:38,626 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-08 23:59:38,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 11:59:38 BasicIcfg [2022-02-08 23:59:38,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-08 23:59:38,631 INFO L158 Benchmark]: Toolchain (without parser) took 22795.72ms. Allocated memory was 173.0MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 119.9MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-08 23:59:38,631 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-08 23:59:38,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.64ms. Allocated memory is still 173.0MB. Free memory was 119.7MB in the beginning and 137.4MB in the end (delta: -17.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-08 23:59:38,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.86ms. Allocated memory is still 173.0MB. Free memory was 137.4MB in the beginning and 135.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-08 23:59:38,632 INFO L158 Benchmark]: Boogie Preprocessor took 33.80ms. Allocated memory is still 173.0MB. Free memory was 135.3MB in the beginning and 133.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-08 23:59:38,632 INFO L158 Benchmark]: RCFGBuilder took 497.29ms. Allocated memory is still 173.0MB. Free memory was 133.9MB in the beginning and 120.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-08 23:59:38,632 INFO L158 Benchmark]: TraceAbstraction took 21793.05ms. Allocated memory was 173.0MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 119.6MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-02-08 23:59:38,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 403.64ms. Allocated memory is still 173.0MB. Free memory was 119.7MB in the beginning and 137.4MB in the end (delta: -17.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.86ms. Allocated memory is still 173.0MB. Free memory was 137.4MB in the beginning and 135.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.80ms. Allocated memory is still 173.0MB. Free memory was 135.3MB in the beginning and 133.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 497.29ms. Allocated memory is still 173.0MB. Free memory was 133.9MB in the beginning and 120.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 21793.05ms. Allocated memory was 173.0MB in the beginning and 7.1GB in the end (delta: 6.9GB). Free memory was 119.6MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 9 procedures, 142 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 21.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.2s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1661 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1661 mSDsluCounter, 4438 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3526 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 354 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 1012 mSDtfsCounter, 354 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49056occurred in iteration=3, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 487 NumberOfCodeBlocks, 487 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 480 ConstructedInterpolants, 0 QuantifiedInterpolants, 2796 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2022-02-08 23:59:38,675 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...