/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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 12:17:28,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 12:17:28,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 12:17:28,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-28 12:17:28,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-28 12:17:28,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-28 12:17:28,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-28 12:17:28,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-28 12:17:28,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-28 12:17:28,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-28 12:17:28,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-28 12:17:28,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-28 12:17:28,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 12:17:28,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 12:17:28,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 12:17:28,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 12:17:28,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 12:17:28,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 12:17:28,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 12:17:28,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 12:17:28,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 12:17:28,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 12:17:28,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 12:17:28,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 12:17:28,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-28 12:17:28,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-28 12:17:28,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-28 12:17:28,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-28 12:17:28,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-28 12:17:28,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-28 12:17:28,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-28 12:17:28,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-28 12:17:28,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-28 12:17:28,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-28 12:17:28,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-28 12:17:28,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-28 12:17:28,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-28 12:17:28,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-28 12:17:28,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 12:17:28,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 12:17:28,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 12:17:28,363 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 [2022-01-28 12:17:28,387 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 12:17:28,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 12:17:28,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 12:17:28,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 12:17:28,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 12:17:28,391 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 12:17:28,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 12:17:28,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 12:17:28,392 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 12:17:28,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 12:17:28,393 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 12:17:28,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 12:17:28,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 12:17:28,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 12:17:28,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 12:17:28,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 12:17:28,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 12:17:28,394 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 12:17:28,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 12:17:28,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 12:17:28,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 12:17:28,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 12:17:28,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 12:17:28,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 12:17:28,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 12:17:28,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:17:28,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 12:17:28,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 12:17:28,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 12:17:28,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 12:17:28,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 12:17:28,397 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 12:17:28,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 12:17:28,397 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 12:17:28,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 12:17:28,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 12:17:28,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 12:17:28,643 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 12:17:28,643 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 12:17:28,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-28 12:17:28,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0958e55/5ba61af43d19491994faa251a1078790/FLAGea8439772 [2022-01-28 12:17:29,135 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 12:17:29,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-28 12:17:29,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0958e55/5ba61af43d19491994faa251a1078790/FLAGea8439772 [2022-01-28 12:17:29,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be0958e55/5ba61af43d19491994faa251a1078790 [2022-01-28 12:17:29,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 12:17:29,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 12:17:29,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 12:17:29,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 12:17:29,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 12:17:29,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6648a255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29, skipping insertion in model container [2022-01-28 12:17:29,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 12:17:29,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 12:17:29,394 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-01-28 12:17:29,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:17:29,532 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 12:17:29,542 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-01-28 12:17:29,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:17:29,609 INFO L208 MainTranslator]: Completed translation [2022-01-28 12:17:29,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29 WrapperNode [2022-01-28 12:17:29,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 12:17:29,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 12:17:29,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 12:17:29,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 12:17:29,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,655 INFO L137 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-01-28 12:17:29,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 12:17:29,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 12:17:29,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 12:17:29,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 12:17:29,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 12:17:29,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 12:17:29,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 12:17:29,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 12:17:29,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (1/1) ... [2022-01-28 12:17:29,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:17:29,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:17:29,737 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) [2022-01-28 12:17:29,751 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 [2022-01-28 12:17:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 12:17:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-28 12:17:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 12:17:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 12:17:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 12:17:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-28 12:17:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-28 12:17:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-28 12:17:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-28 12:17:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-28 12:17:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-28 12:17:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-01-28 12:17:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-01-28 12:17:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 12:17:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-28 12:17:29,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 12:17:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 12:17:29,788 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 12:17:29,938 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 12:17:29,940 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 12:17:30,136 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 12:17:30,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 12:17:30,144 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-28 12:17:30,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:17:30 BoogieIcfgContainer [2022-01-28 12:17:30,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 12:17:30,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 12:17:30,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 12:17:30,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 12:17:30,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:17:29" (1/3) ... [2022-01-28 12:17:30,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3fa8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:17:30, skipping insertion in model container [2022-01-28 12:17:30,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:29" (2/3) ... [2022-01-28 12:17:30,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3fa8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:17:30, skipping insertion in model container [2022-01-28 12:17:30,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:17:30" (3/3) ... [2022-01-28 12:17:30,154 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-28 12:17:30,158 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 12:17:30,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 12:17:30,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 12:17:30,158 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 12:17:30,193 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,193 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,194 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,194 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,194 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,194 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,194 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,194 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,196 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,196 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,196 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,196 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,197 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,197 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,198 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,198 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,198 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,198 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,198 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,199 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,199 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,199 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,199 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,199 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,199 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,200 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,200 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,200 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,200 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,201 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,201 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,201 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,201 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,204 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,204 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,204 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,205 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,205 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,205 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,205 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,206 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,221 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,221 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,221 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,221 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,225 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,225 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,226 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,226 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,227 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,227 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,227 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,227 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,228 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,228 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,228 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,228 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:17:30,229 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-28 12:17:30,272 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 12:17:30,279 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, 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 [2022-01-28 12:17:30,280 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-28 12:17:30,291 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 117 places, 106 transitions, 232 flow [2022-01-28 12:17:31,775 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 34178 states, 34177 states have (on average 4.310267138719022) internal successors, (147312), 34177 states have internal predecessors, (147312), 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) [2022-01-28 12:17:31,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 34178 states, 34177 states have (on average 4.310267138719022) internal successors, (147312), 34177 states have internal predecessors, (147312), 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) [2022-01-28 12:17:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-28 12:17:32,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:32,124 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] [2022-01-28 12:17:32,125 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)] === [2022-01-28 12:17:32,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:32,134 INFO L85 PathProgramCache]: Analyzing trace with hash -793453068, now seen corresponding path program 1 times [2022-01-28 12:17:32,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:32,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701726069] [2022-01-28 12:17:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:32,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:32,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:32,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701726069] [2022-01-28 12:17:32,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701726069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:32,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:32,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:17:32,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381310424] [2022-01-28 12:17:32,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:32,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:17:32,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:32,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:17:32,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:17:32,799 INFO L87 Difference]: Start difference. First operand has 34178 states, 34177 states have (on average 4.310267138719022) internal successors, (147312), 34177 states have internal predecessors, (147312), 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 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2022-01-28 12:17:34,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:34,433 INFO L93 Difference]: Finished difference Result 61286 states and 256950 transitions. [2022-01-28 12:17:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 12:17:34,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2022-01-28 12:17:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:35,104 INFO L225 Difference]: With dead ends: 61286 [2022-01-28 12:17:35,115 INFO L226 Difference]: Without dead ends: 41390 [2022-01-28 12:17:35,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-28 12:17:35,131 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 225 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:35,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 745 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:17:35,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41390 states. [2022-01-28 12:17:37,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41390 to 35006. [2022-01-28 12:17:37,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35006 states, 35005 states have (on average 4.17420368518783) internal successors, (146118), 35005 states have internal predecessors, (146118), 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) [2022-01-28 12:17:37,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35006 states to 35006 states and 146118 transitions. [2022-01-28 12:17:37,638 INFO L78 Accepts]: Start accepts. Automaton has 35006 states and 146118 transitions. Word has length 62 [2022-01-28 12:17:37,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:37,639 INFO L470 AbstractCegarLoop]: Abstraction has 35006 states and 146118 transitions. [2022-01-28 12:17:37,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2022-01-28 12:17:37,640 INFO L276 IsEmpty]: Start isEmpty. Operand 35006 states and 146118 transitions. [2022-01-28 12:17:37,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-28 12:17:37,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:37,788 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] [2022-01-28 12:17:37,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 12:17:37,789 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)] === [2022-01-28 12:17:37,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:37,790 INFO L85 PathProgramCache]: Analyzing trace with hash -205703211, now seen corresponding path program 1 times [2022-01-28 12:17:37,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:37,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427281436] [2022-01-28 12:17:37,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:37,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:37,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:37,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:37,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427281436] [2022-01-28 12:17:37,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427281436] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:37,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:37,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:17:37,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385536758] [2022-01-28 12:17:37,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:37,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:17:37,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:37,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:17:37,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:17:37,944 INFO L87 Difference]: Start difference. First operand 35006 states and 146118 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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) [2022-01-28 12:17:38,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:38,952 INFO L93 Difference]: Finished difference Result 47426 states and 196194 transitions. [2022-01-28 12:17:38,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 12:17:38,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2022-01-28 12:17:38,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:39,237 INFO L225 Difference]: With dead ends: 47426 [2022-01-28 12:17:39,237 INFO L226 Difference]: Without dead ends: 37526 [2022-01-28 12:17:39,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-28 12:17:39,239 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 201 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:39,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 788 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:17:39,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37526 states. [2022-01-28 12:17:40,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37526 to 30566. [2022-01-28 12:17:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30566 states, 30565 states have (on average 4.14951742188778) internal successors, (126830), 30565 states have internal predecessors, (126830), 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) [2022-01-28 12:17:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30566 states to 30566 states and 126830 transitions. [2022-01-28 12:17:41,151 INFO L78 Accepts]: Start accepts. Automaton has 30566 states and 126830 transitions. Word has length 64 [2022-01-28 12:17:41,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:41,152 INFO L470 AbstractCegarLoop]: Abstraction has 30566 states and 126830 transitions. [2022-01-28 12:17:41,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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) [2022-01-28 12:17:41,152 INFO L276 IsEmpty]: Start isEmpty. Operand 30566 states and 126830 transitions. [2022-01-28 12:17:41,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-28 12:17:41,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:41,374 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] [2022-01-28 12:17:41,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 12:17:41,374 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)] === [2022-01-28 12:17:41,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:41,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1095462004, now seen corresponding path program 1 times [2022-01-28 12:17:41,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:41,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154233636] [2022-01-28 12:17:41,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:41,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:41,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:41,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:41,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154233636] [2022-01-28 12:17:41,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154233636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:41,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:41,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:17:41,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934522596] [2022-01-28 12:17:41,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:41,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:17:41,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:41,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:17:41,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:17:41,566 INFO L87 Difference]: Start difference. First operand 30566 states and 126830 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-01-28 12:17:42,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:42,374 INFO L93 Difference]: Finished difference Result 49958 states and 205696 transitions. [2022-01-28 12:17:42,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 12:17:42,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2022-01-28 12:17:42,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:42,572 INFO L225 Difference]: With dead ends: 49958 [2022-01-28 12:17:42,572 INFO L226 Difference]: Without dead ends: 27591 [2022-01-28 12:17:42,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-01-28 12:17:42,580 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 254 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:42,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 650 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:17:42,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27591 states. [2022-01-28 12:17:43,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27591 to 24231. [2022-01-28 12:17:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24231 states, 24230 states have (on average 4.133801073049938) internal successors, (100162), 24230 states have internal predecessors, (100162), 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) [2022-01-28 12:17:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24231 states to 24231 states and 100162 transitions. [2022-01-28 12:17:43,846 INFO L78 Accepts]: Start accepts. Automaton has 24231 states and 100162 transitions. Word has length 66 [2022-01-28 12:17:43,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:43,847 INFO L470 AbstractCegarLoop]: Abstraction has 24231 states and 100162 transitions. [2022-01-28 12:17:43,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-01-28 12:17:43,847 INFO L276 IsEmpty]: Start isEmpty. Operand 24231 states and 100162 transitions. [2022-01-28 12:17:43,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-28 12:17:43,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:43,895 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] [2022-01-28 12:17:43,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 12:17:43,896 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)] === [2022-01-28 12:17:43,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:43,896 INFO L85 PathProgramCache]: Analyzing trace with hash -378865465, now seen corresponding path program 1 times [2022-01-28 12:17:43,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:43,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22418549] [2022-01-28 12:17:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:43,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:44,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:44,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22418549] [2022-01-28 12:17:44,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22418549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:44,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:44,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:17:44,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553882700] [2022-01-28 12:17:44,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:44,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:17:44,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:44,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:17:44,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:17:44,056 INFO L87 Difference]: Start difference. First operand 24231 states and 100162 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) [2022-01-28 12:17:44,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:44,753 INFO L93 Difference]: Finished difference Result 38631 states and 158314 transitions. [2022-01-28 12:17:44,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 12:17:44,755 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 [2022-01-28 12:17:44,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:45,016 INFO L225 Difference]: With dead ends: 38631 [2022-01-28 12:17:45,017 INFO L226 Difference]: Without dead ends: 24951 [2022-01-28 12:17:45,017 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 [2022-01-28 12:17:45,018 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 177 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:45,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 750 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:17:45,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24951 states. [2022-01-28 12:17:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24951 to 21591. [2022-01-28 12:17:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21591 states, 21590 states have (on average 4.076609541454377) internal successors, (88014), 21590 states have internal predecessors, (88014), 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) [2022-01-28 12:17:45,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21591 states to 21591 states and 88014 transitions. [2022-01-28 12:17:45,826 INFO L78 Accepts]: Start accepts. Automaton has 21591 states and 88014 transitions. Word has length 67 [2022-01-28 12:17:45,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:45,827 INFO L470 AbstractCegarLoop]: Abstraction has 21591 states and 88014 transitions. [2022-01-28 12:17:45,827 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) [2022-01-28 12:17:45,827 INFO L276 IsEmpty]: Start isEmpty. Operand 21591 states and 88014 transitions. [2022-01-28 12:17:45,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-28 12:17:45,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:45,870 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] [2022-01-28 12:17:45,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 12:17:45,871 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)] === [2022-01-28 12:17:45,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:45,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1965691257, now seen corresponding path program 1 times [2022-01-28 12:17:45,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:45,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897267076] [2022-01-28 12:17:45,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:45,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:46,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:46,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:46,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897267076] [2022-01-28 12:17:46,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897267076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:46,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:46,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:17:46,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402761530] [2022-01-28 12:17:46,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:46,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:17:46,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:46,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:17:46,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:17:46,036 INFO L87 Difference]: Start difference. First operand 21591 states and 88014 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:17:46,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:46,647 INFO L93 Difference]: Finished difference Result 34271 states and 137840 transitions. [2022-01-28 12:17:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 12:17:46,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-01-28 12:17:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:46,740 INFO L225 Difference]: With dead ends: 34271 [2022-01-28 12:17:46,740 INFO L226 Difference]: Without dead ends: 18011 [2022-01-28 12:17:46,741 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 [2022-01-28 12:17:46,741 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 266 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:46,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 624 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:17:46,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18011 states. [2022-01-28 12:17:47,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18011 to 15771. [2022-01-28 12:17:47,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15771 states, 15770 states have (on average 3.985034876347495) internal successors, (62844), 15770 states have internal predecessors, (62844), 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) [2022-01-28 12:17:47,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15771 states to 15771 states and 62844 transitions. [2022-01-28 12:17:47,519 INFO L78 Accepts]: Start accepts. Automaton has 15771 states and 62844 transitions. Word has length 68 [2022-01-28 12:17:47,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:47,520 INFO L470 AbstractCegarLoop]: Abstraction has 15771 states and 62844 transitions. [2022-01-28 12:17:47,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:17:47,520 INFO L276 IsEmpty]: Start isEmpty. Operand 15771 states and 62844 transitions. [2022-01-28 12:17:47,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-28 12:17:47,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:47,554 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] [2022-01-28 12:17:47,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 12:17:47,554 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)] === [2022-01-28 12:17:47,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:47,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2097870770, now seen corresponding path program 1 times [2022-01-28 12:17:47,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:47,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17391413] [2022-01-28 12:17:47,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:47,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:47,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:47,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17391413] [2022-01-28 12:17:47,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17391413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:47,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:47,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 12:17:47,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768519763] [2022-01-28 12:17:47,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:47,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 12:17:47,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:47,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 12:17:47,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-28 12:17:47,660 INFO L87 Difference]: Start difference. First operand 15771 states and 62844 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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) [2022-01-28 12:17:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:47,874 INFO L93 Difference]: Finished difference Result 21187 states and 83926 transitions. [2022-01-28 12:17:47,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 12:17:47,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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 [2022-01-28 12:17:47,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:47,938 INFO L225 Difference]: With dead ends: 21187 [2022-01-28 12:17:47,938 INFO L226 Difference]: Without dead ends: 15267 [2022-01-28 12:17:47,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:17:47,940 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 158 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:47,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 408 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:17:47,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15267 states. [2022-01-28 12:17:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15267 to 15267. [2022-01-28 12:17:48,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15267 states, 15266 states have (on average 3.9671164679680335) internal successors, (60562), 15266 states have internal predecessors, (60562), 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) [2022-01-28 12:17:48,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15267 states to 15267 states and 60562 transitions. [2022-01-28 12:17:48,574 INFO L78 Accepts]: Start accepts. Automaton has 15267 states and 60562 transitions. Word has length 70 [2022-01-28 12:17:48,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:48,574 INFO L470 AbstractCegarLoop]: Abstraction has 15267 states and 60562 transitions. [2022-01-28 12:17:48,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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) [2022-01-28 12:17:48,575 INFO L276 IsEmpty]: Start isEmpty. Operand 15267 states and 60562 transitions. [2022-01-28 12:17:48,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-28 12:17:48,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:48,606 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] [2022-01-28 12:17:48,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-28 12:17:48,607 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)] === [2022-01-28 12:17:48,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:48,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1204951160, now seen corresponding path program 1 times [2022-01-28 12:17:48,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:48,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135729221] [2022-01-28 12:17:48,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:48,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:48,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:48,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135729221] [2022-01-28 12:17:48,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135729221] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:48,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:48,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:17:48,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615859781] [2022-01-28 12:17:48,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:48,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:17:48,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:17:48,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:17:48,695 INFO L87 Difference]: Start difference. First operand 15267 states and 60562 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2022-01-28 12:17:48,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:48,902 INFO L93 Difference]: Finished difference Result 18705 states and 73195 transitions. [2022-01-28 12:17:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 12:17:48,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 71 [2022-01-28 12:17:48,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:49,168 INFO L225 Difference]: With dead ends: 18705 [2022-01-28 12:17:49,168 INFO L226 Difference]: Without dead ends: 13125 [2022-01-28 12:17:49,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-28 12:17:49,172 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 274 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:49,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 466 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:17:49,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13125 states. [2022-01-28 12:17:49,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13125 to 13125. [2022-01-28 12:17:49,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13125 states, 13124 states have (on average 3.892944224321853) internal successors, (51091), 13124 states have internal predecessors, (51091), 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) [2022-01-28 12:17:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13125 states to 13125 states and 51091 transitions. [2022-01-28 12:17:49,488 INFO L78 Accepts]: Start accepts. Automaton has 13125 states and 51091 transitions. Word has length 71 [2022-01-28 12:17:49,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:49,488 INFO L470 AbstractCegarLoop]: Abstraction has 13125 states and 51091 transitions. [2022-01-28 12:17:49,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2022-01-28 12:17:49,488 INFO L276 IsEmpty]: Start isEmpty. Operand 13125 states and 51091 transitions. [2022-01-28 12:17:49,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-28 12:17:49,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:49,509 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] [2022-01-28 12:17:49,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-28 12:17:49,509 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 12:17:49,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:49,510 INFO L85 PathProgramCache]: Analyzing trace with hash -57955417, now seen corresponding path program 1 times [2022-01-28 12:17:49,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:49,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129287748] [2022-01-28 12:17:49,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:49,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:49,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:49,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129287748] [2022-01-28 12:17:49,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129287748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:49,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:49,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:17:49,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291451964] [2022-01-28 12:17:49,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:49,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:17:49,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:49,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:17:49,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:17:49,599 INFO L87 Difference]: Start difference. First operand 13125 states and 51091 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 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) [2022-01-28 12:17:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:50,010 INFO L93 Difference]: Finished difference Result 13449 states and 51289 transitions. [2022-01-28 12:17:50,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 12:17:50,013 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 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 72 [2022-01-28 12:17:50,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:50,048 INFO L225 Difference]: With dead ends: 13449 [2022-01-28 12:17:50,048 INFO L226 Difference]: Without dead ends: 9219 [2022-01-28 12:17:50,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-01-28 12:17:50,049 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 404 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:50,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 478 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:17:50,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9219 states. [2022-01-28 12:17:50,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9219 to 9219. [2022-01-28 12:17:50,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9219 states, 9218 states have (on average 3.761011065307008) internal successors, (34669), 9218 states have internal predecessors, (34669), 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) [2022-01-28 12:17:50,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9219 states to 9219 states and 34669 transitions. [2022-01-28 12:17:50,303 INFO L78 Accepts]: Start accepts. Automaton has 9219 states and 34669 transitions. Word has length 72 [2022-01-28 12:17:50,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:50,304 INFO L470 AbstractCegarLoop]: Abstraction has 9219 states and 34669 transitions. [2022-01-28 12:17:50,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 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) [2022-01-28 12:17:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand 9219 states and 34669 transitions. [2022-01-28 12:17:50,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-28 12:17:50,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:50,324 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] [2022-01-28 12:17:50,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-28 12:17:50,324 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 12:17:50,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:50,325 INFO L85 PathProgramCache]: Analyzing trace with hash -620904434, now seen corresponding path program 1 times [2022-01-28 12:17:50,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:50,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116889361] [2022-01-28 12:17:50,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:50,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:50,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:50,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116889361] [2022-01-28 12:17:50,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116889361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:50,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:50,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:17:50,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262642272] [2022-01-28 12:17:50,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:50,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:17:50,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:50,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:17:50,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:17:50,463 INFO L87 Difference]: Start difference. First operand 9219 states and 34669 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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) [2022-01-28 12:17:50,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:50,655 INFO L93 Difference]: Finished difference Result 13527 states and 51008 transitions. [2022-01-28 12:17:50,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 12:17:50,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 74 [2022-01-28 12:17:50,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:50,694 INFO L225 Difference]: With dead ends: 13527 [2022-01-28 12:17:50,695 INFO L226 Difference]: Without dead ends: 8557 [2022-01-28 12:17:50,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-01-28 12:17:50,696 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 174 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:50,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 848 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:17:50,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8557 states. [2022-01-28 12:17:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8557 to 7801. [2022-01-28 12:17:51,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7801 states, 7800 states have (on average 3.7432051282051284) internal successors, (29197), 7800 states have internal predecessors, (29197), 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) [2022-01-28 12:17:51,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7801 states to 7801 states and 29197 transitions. [2022-01-28 12:17:51,197 INFO L78 Accepts]: Start accepts. Automaton has 7801 states and 29197 transitions. Word has length 74 [2022-01-28 12:17:51,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:51,197 INFO L470 AbstractCegarLoop]: Abstraction has 7801 states and 29197 transitions. [2022-01-28 12:17:51,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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) [2022-01-28 12:17:51,197 INFO L276 IsEmpty]: Start isEmpty. Operand 7801 states and 29197 transitions. [2022-01-28 12:17:51,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-28 12:17:51,212 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:51,212 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] [2022-01-28 12:17:51,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-28 12:17:51,212 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 12:17:51,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:51,213 INFO L85 PathProgramCache]: Analyzing trace with hash 483804006, now seen corresponding path program 2 times [2022-01-28 12:17:51,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:51,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089521743] [2022-01-28 12:17:51,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:51,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:51,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:51,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:51,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089521743] [2022-01-28 12:17:51,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089521743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:51,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:51,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-28 12:17:51,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873906911] [2022-01-28 12:17:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:51,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 12:17:51,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:51,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 12:17:51,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-28 12:17:51,307 INFO L87 Difference]: Start difference. First operand 7801 states and 29197 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 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) [2022-01-28 12:17:51,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:51,498 INFO L93 Difference]: Finished difference Result 6532 states and 23959 transitions. [2022-01-28 12:17:51,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 12:17:51,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 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 74 [2022-01-28 12:17:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:51,510 INFO L225 Difference]: With dead ends: 6532 [2022-01-28 12:17:51,511 INFO L226 Difference]: Without dead ends: 3433 [2022-01-28 12:17:51,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2022-01-28 12:17:51,512 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 308 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:51,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 540 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:17:51,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2022-01-28 12:17:51,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3433. [2022-01-28 12:17:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3432 states have (on average 3.5565268065268065) internal successors, (12206), 3432 states have internal predecessors, (12206), 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) [2022-01-28 12:17:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 12206 transitions. [2022-01-28 12:17:51,584 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 12206 transitions. Word has length 74 [2022-01-28 12:17:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:51,585 INFO L470 AbstractCegarLoop]: Abstraction has 3433 states and 12206 transitions. [2022-01-28 12:17:51,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 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) [2022-01-28 12:17:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 12206 transitions. [2022-01-28 12:17:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-28 12:17:51,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:17:51,593 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] [2022-01-28 12:17:51,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-28 12:17:51,593 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 12:17:51,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:17:51,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1082576133, now seen corresponding path program 1 times [2022-01-28 12:17:51,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:17:51,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916468393] [2022-01-28 12:17:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:17:51,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:17:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:17:51,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:17:51,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:17:51,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916468393] [2022-01-28 12:17:51,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916468393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:17:51,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:17:51,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:17:51,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608523436] [2022-01-28 12:17:51,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:17:51,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:17:51,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:17:51,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:17:51,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:17:51,672 INFO L87 Difference]: Start difference. First operand 3433 states and 12206 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 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) [2022-01-28 12:17:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:17:51,757 INFO L93 Difference]: Finished difference Result 3271 states and 11612 transitions. [2022-01-28 12:17:51,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 12:17:51,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 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 [2022-01-28 12:17:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:17:51,758 INFO L225 Difference]: With dead ends: 3271 [2022-01-28 12:17:51,758 INFO L226 Difference]: Without dead ends: 0 [2022-01-28 12:17:51,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-28 12:17:51,759 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 83 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:17:51,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 571 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:17:51,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-28 12:17:51,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-28 12:17:51,760 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) [2022-01-28 12:17:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-28 12:17:51,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2022-01-28 12:17:51,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:17:51,760 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-28 12:17:51,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 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) [2022-01-28 12:17:51,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-28 12:17:51,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-28 12:17:51,763 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-28 12:17:51,764 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-28 12:17:51,764 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-28 12:17:51,764 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-28 12:17:51,764 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-28 12:17:51,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-28 12:17:51,767 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:17:51,769 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-28 12:17:51,769 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 12:17:51,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:17:51 BasicIcfg [2022-01-28 12:17:51,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 12:17:51,772 INFO L158 Benchmark]: Toolchain (without parser) took 22607.26ms. Allocated memory was 179.3MB in the beginning and 6.9GB in the end (delta: 6.7GB). Free memory was 122.4MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-01-28 12:17:51,772 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 12:17:51,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.58ms. Allocated memory was 179.3MB in the beginning and 233.8MB in the end (delta: 54.5MB). Free memory was 122.2MB in the beginning and 196.4MB in the end (delta: -74.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2022-01-28 12:17:51,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.55ms. Allocated memory is still 233.8MB. Free memory was 196.4MB in the beginning and 194.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 12:17:51,773 INFO L158 Benchmark]: Boogie Preprocessor took 22.70ms. Allocated memory is still 233.8MB. Free memory was 194.4MB in the beginning and 192.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 12:17:51,773 INFO L158 Benchmark]: RCFGBuilder took 466.45ms. Allocated memory is still 233.8MB. Free memory was 192.8MB in the beginning and 178.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-28 12:17:51,773 INFO L158 Benchmark]: TraceAbstraction took 21621.97ms. Allocated memory was 233.8MB in the beginning and 6.9GB in the end (delta: 6.6GB). Free memory was 178.6MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-01-28 12:17:51,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 444.58ms. Allocated memory was 179.3MB in the beginning and 233.8MB in the end (delta: 54.5MB). Free memory was 122.2MB in the beginning and 196.4MB in the end (delta: -74.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.55ms. Allocated memory is still 233.8MB. Free memory was 196.4MB in the beginning and 194.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.70ms. Allocated memory is still 233.8MB. Free memory was 194.4MB in the beginning and 192.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 466.45ms. Allocated memory is still 233.8MB. Free memory was 192.8MB in the beginning and 178.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 21621.97ms. Allocated memory was 233.8MB in the beginning and 6.9GB in the end (delta: 6.6GB). Free memory was 178.6MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 1.7GB. 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, 135 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 21.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.9s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2524 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2524 mSDsluCounter, 6868 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5623 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 832 IncrementalHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 1431 mSDtfsCounter, 832 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 155 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35006occurred in iteration=1, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 23060 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 764 NumberOfCodeBlocks, 764 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 753 ConstructedInterpolants, 0 QuantifiedInterpolants, 3411 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2022-01-28 12:17:51,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...