/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/fib_unsafe-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 15:47:32,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 15:47:32,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 15:47:32,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 15:47:32,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 15:47:32,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 15:47:32,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 15:47:32,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 15:47:32,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 15:47:32,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 15:47:32,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 15:47:32,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 15:47:32,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 15:47:32,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 15:47:32,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 15:47:32,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 15:47:32,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 15:47:32,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 15:47:32,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 15:47:32,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 15:47:32,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 15:47:32,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 15:47:32,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 15:47:32,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 15:47:32,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-03 15:47:32,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-03 15:47:32,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-03 15:47:32,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-03 15:47:32,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-03 15:47:32,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-03 15:47:32,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-03 15:47:32,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-03 15:47:32,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-03 15:47:32,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-03 15:47:32,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-03 15:47:32,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-03 15:47:32,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-03 15:47:32,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-03 15:47:32,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 15:47:32,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 15:47:32,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 15:47:32,315 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 [2022-03-03 15:47:32,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 15:47:32,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 15:47:32,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 15:47:32,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 15:47:32,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 15:47:32,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 15:47:32,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 15:47:32,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 15:47:32,348 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 15:47:32,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 15:47:32,348 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 15:47:32,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 15:47:32,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 15:47:32,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 15:47:32,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 15:47:32,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 15:47:32,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 15:47:32,349 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 15:47:32,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 15:47:32,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 15:47:32,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 15:47:32,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 15:47:32,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 15:47:32,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 15:47:32,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 15:47:32,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 15:47:32,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 15:47:32,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 15:47:32,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 15:47:32,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 15:47:32,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 15:47:32,351 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 15:47:32,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 15:47:32,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 15:47:32,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 15:47:32,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 15:47:32,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 15:47:32,588 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 15:47:32,591 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 15:47:32,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-10.i [2022-03-03 15:47:32,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81295310d/c023fc03f8d6406d83564aecf78d080e/FLAG1730faf23 [2022-03-03 15:47:33,064 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 15:47:33,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-10.i [2022-03-03 15:47:33,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81295310d/c023fc03f8d6406d83564aecf78d080e/FLAG1730faf23 [2022-03-03 15:47:33,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81295310d/c023fc03f8d6406d83564aecf78d080e [2022-03-03 15:47:33,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 15:47:33,426 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 15:47:33,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 15:47:33,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 15:47:33,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 15:47:33,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e48b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33, skipping insertion in model container [2022-03-03 15:47:33,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 15:47:33,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 15:47:33,766 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/fib_unsafe-10.i[30813,30826] [2022-03-03 15:47:33,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 15:47:33,776 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 15:47:33,821 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/fib_unsafe-10.i[30813,30826] [2022-03-03 15:47:33,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 15:47:33,853 INFO L208 MainTranslator]: Completed translation [2022-03-03 15:47:33,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33 WrapperNode [2022-03-03 15:47:33,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 15:47:33,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 15:47:33,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 15:47:33,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 15:47:33,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,905 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-03-03 15:47:33,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 15:47:33,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 15:47:33,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 15:47:33,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 15:47:33,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 15:47:33,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 15:47:33,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 15:47:33,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 15:47:33,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (1/1) ... [2022-03-03 15:47:33,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 15:47:33,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 15:47:33,971 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) [2022-03-03 15:47:33,973 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 [2022-03-03 15:47:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-03-03 15:47:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-03-03 15:47:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-03-03 15:47:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-03-03 15:47:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 15:47:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 15:47:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 15:47:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 15:47:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 15:47:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 15:47:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 15:47:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 15:47:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 15:47:33,999 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 15:47:34,084 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 15:47:34,085 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 15:47:34,288 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 15:47:34,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 15:47:34,295 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-03 15:47:34,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 03:47:34 BoogieIcfgContainer [2022-03-03 15:47:34,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 15:47:34,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 15:47:34,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 15:47:34,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 15:47:34,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 03:47:33" (1/3) ... [2022-03-03 15:47:34,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c0392b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:47:34, skipping insertion in model container [2022-03-03 15:47:34,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:47:33" (2/3) ... [2022-03-03 15:47:34,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c0392b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:47:34, skipping insertion in model container [2022-03-03 15:47:34,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 03:47:34" (3/3) ... [2022-03-03 15:47:34,319 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_unsafe-10.i [2022-03-03 15:47:34,323 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 15:47:34,323 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 15:47:34,323 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 15:47:34,323 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 15:47:34,387 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,387 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,388 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,388 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,388 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,388 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,388 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,389 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,389 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,390 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,390 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,390 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,390 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,391 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,391 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,391 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,391 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,391 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,392 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,392 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,392 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,392 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,392 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,393 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,393 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,393 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,393 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,394 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,394 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,394 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,394 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,394 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,395 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,395 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,403 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,403 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,408 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,408 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,408 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,408 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,408 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,414 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,414 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,415 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,415 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,415 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 15:47:34,418 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 15:47:34,469 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 15:47:34,480 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 15:47:34,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-03 15:47:34,495 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 96 transitions, 202 flow [2022-03-03 15:47:34,622 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 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) [2022-03-03 15:47:34,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 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) [2022-03-03 15:47:34,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-03 15:47:34,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 15:47:34,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 15:47:34,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 15:47:34,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 15:47:34,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times [2022-03-03 15:47:34,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 15:47:34,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750027636] [2022-03-03 15:47:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 15:47:34,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 15:47:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 15:47:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:34,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 15:47:34,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750027636] [2022-03-03 15:47:34,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750027636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 15:47:34,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 15:47:34,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 15:47:34,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760993173] [2022-03-03 15:47:34,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 15:47:34,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 15:47:34,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 15:47:34,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 15:47:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 15:47:34,969 INFO L87 Difference]: Start difference. First operand has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 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 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 15:47:35,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 15:47:35,038 INFO L93 Difference]: Finished difference Result 2292 states and 6752 transitions. [2022-03-03 15:47:35,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 15:47:35,041 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-03-03 15:47:35,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 15:47:35,078 INFO L225 Difference]: With dead ends: 2292 [2022-03-03 15:47:35,078 INFO L226 Difference]: Without dead ends: 2292 [2022-03-03 15:47:35,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 15:47:35,085 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 15:47:35,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 15:47:35,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-03-03 15:47:35,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2022-03-03 15:47:35,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 2291 states have (on average 2.947184635530336) internal successors, (6752), 2291 states have internal predecessors, (6752), 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) [2022-03-03 15:47:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 6752 transitions. [2022-03-03 15:47:35,222 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 6752 transitions. Word has length 53 [2022-03-03 15:47:35,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 15:47:35,225 INFO L470 AbstractCegarLoop]: Abstraction has 2292 states and 6752 transitions. [2022-03-03 15:47:35,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 15:47:35,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 6752 transitions. [2022-03-03 15:47:35,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-03 15:47:35,230 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 15:47:35,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 15:47:35,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 15:47:35,231 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 15:47:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 15:47:35,232 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times [2022-03-03 15:47:35,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 15:47:35,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722163884] [2022-03-03 15:47:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 15:47:35,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 15:47:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 15:47:35,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:35,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 15:47:35,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722163884] [2022-03-03 15:47:35,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722163884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 15:47:35,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 15:47:35,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 15:47:35,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855281157] [2022-03-03 15:47:35,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 15:47:35,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 15:47:35,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 15:47:35,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 15:47:35,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 15:47:35,313 INFO L87 Difference]: Start difference. First operand 2292 states and 6752 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 15:47:35,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 15:47:35,359 INFO L93 Difference]: Finished difference Result 2892 states and 8552 transitions. [2022-03-03 15:47:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 15:47:35,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-03-03 15:47:35,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 15:47:35,375 INFO L225 Difference]: With dead ends: 2892 [2022-03-03 15:47:35,376 INFO L226 Difference]: Without dead ends: 2892 [2022-03-03 15:47:35,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 15:47:35,379 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 51 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 15:47:35,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 124 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 15:47:35,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2022-03-03 15:47:35,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2392. [2022-03-03 15:47:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2391 states have (on average 2.949393559180259) internal successors, (7052), 2391 states have internal predecessors, (7052), 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) [2022-03-03 15:47:35,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 7052 transitions. [2022-03-03 15:47:35,537 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 7052 transitions. Word has length 53 [2022-03-03 15:47:35,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 15:47:35,538 INFO L470 AbstractCegarLoop]: Abstraction has 2392 states and 7052 transitions. [2022-03-03 15:47:35,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 15:47:35,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 7052 transitions. [2022-03-03 15:47:35,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-03 15:47:35,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 15:47:35,544 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] [2022-03-03 15:47:35,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 15:47:35,544 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 15:47:35,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 15:47:35,545 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times [2022-03-03 15:47:35,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 15:47:35,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889699544] [2022-03-03 15:47:35,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 15:47:35,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 15:47:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 15:47:35,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:35,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 15:47:35,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889699544] [2022-03-03 15:47:35,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889699544] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 15:47:35,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589732727] [2022-03-03 15:47:35,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 15:47:35,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 15:47:35,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 15:47:35,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 15:47:35,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 15:47:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 15:47:35,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 15:47:35,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 15:47:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:35,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 15:47:36,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:36,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589732727] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 15:47:36,024 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 15:47:36,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-03 15:47:36,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220190501] [2022-03-03 15:47:36,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 15:47:36,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 15:47:36,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 15:47:36,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 15:47:36,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-03 15:47:36,028 INFO L87 Difference]: Start difference. First operand 2392 states and 7052 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 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) [2022-03-03 15:47:36,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 15:47:36,149 INFO L93 Difference]: Finished difference Result 3792 states and 11252 transitions. [2022-03-03 15:47:36,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 15:47:36,150 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 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 60 [2022-03-03 15:47:36,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 15:47:36,170 INFO L225 Difference]: With dead ends: 3792 [2022-03-03 15:47:36,170 INFO L226 Difference]: Without dead ends: 3792 [2022-03-03 15:47:36,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-03 15:47:36,173 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 352 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 15:47:36,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 402 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 15:47:36,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2022-03-03 15:47:36,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3792. [2022-03-03 15:47:36,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 3791 states have (on average 2.9680823001846477) internal successors, (11252), 3791 states have internal predecessors, (11252), 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) [2022-03-03 15:47:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 11252 transitions. [2022-03-03 15:47:36,368 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 11252 transitions. Word has length 60 [2022-03-03 15:47:36,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 15:47:36,370 INFO L470 AbstractCegarLoop]: Abstraction has 3792 states and 11252 transitions. [2022-03-03 15:47:36,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 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) [2022-03-03 15:47:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 11252 transitions. [2022-03-03 15:47:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-03 15:47:36,379 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 15:47:36,380 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 15:47:36,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-03 15:47:36,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 15:47:36,595 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 15:47:36,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 15:47:36,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times [2022-03-03 15:47:36,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 15:47:36,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011275794] [2022-03-03 15:47:36,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 15:47:36,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 15:47:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 15:47:36,704 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:36,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 15:47:36,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011275794] [2022-03-03 15:47:36,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011275794] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 15:47:36,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115760701] [2022-03-03 15:47:36,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 15:47:36,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 15:47:36,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 15:47:36,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 15:47:36,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 15:47:36,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 15:47:36,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 15:47:36,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-03 15:47:36,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 15:47:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:36,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 15:47:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:37,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115760701] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 15:47:37,139 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 15:47:37,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-03 15:47:37,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436884921] [2022-03-03 15:47:37,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 15:47:37,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-03 15:47:37,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 15:47:37,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-03 15:47:37,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-03 15:47:37,141 INFO L87 Difference]: Start difference. First operand 3792 states and 11252 transitions. Second operand has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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) [2022-03-03 15:47:37,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 15:47:37,369 INFO L93 Difference]: Finished difference Result 6592 states and 19652 transitions. [2022-03-03 15:47:37,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 15:47:37,369 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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 [2022-03-03 15:47:37,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 15:47:37,420 INFO L225 Difference]: With dead ends: 6592 [2022-03-03 15:47:37,420 INFO L226 Difference]: Without dead ends: 6592 [2022-03-03 15:47:37,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-03-03 15:47:37,422 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 1142 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 15:47:37,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 626 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 15:47:37,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2022-03-03 15:47:37,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 6592. [2022-03-03 15:47:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6592 states, 6591 states have (on average 2.9816416325292066) internal successors, (19652), 6591 states have internal predecessors, (19652), 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) [2022-03-03 15:47:37,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6592 states to 6592 states and 19652 transitions. [2022-03-03 15:47:37,645 INFO L78 Accepts]: Start accepts. Automaton has 6592 states and 19652 transitions. Word has length 74 [2022-03-03 15:47:37,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 15:47:37,648 INFO L470 AbstractCegarLoop]: Abstraction has 6592 states and 19652 transitions. [2022-03-03 15:47:37,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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) [2022-03-03 15:47:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 6592 states and 19652 transitions. [2022-03-03 15:47:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-03 15:47:37,666 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 15:47:37,666 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 15:47:37,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-03 15:47:37,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-03-03 15:47:37,880 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 15:47:37,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 15:47:37,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times [2022-03-03 15:47:37,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 15:47:37,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850647290] [2022-03-03 15:47:37,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 15:47:37,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 15:47:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 15:47:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:38,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 15:47:38,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850647290] [2022-03-03 15:47:38,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850647290] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 15:47:38,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007177984] [2022-03-03 15:47:38,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 15:47:38,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 15:47:38,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 15:47:38,106 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 15:47:38,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 15:47:38,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-03-03 15:47:38,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 15:47:38,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-03 15:47:38,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 15:47:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:38,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 15:47:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:38,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007177984] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 15:47:38,815 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 15:47:38,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-03-03 15:47:38,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959321772] [2022-03-03 15:47:38,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 15:47:38,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-03 15:47:38,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 15:47:38,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-03 15:47:38,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 15:47:38,817 INFO L87 Difference]: Start difference. First operand 6592 states and 19652 transitions. Second operand has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 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) [2022-03-03 15:47:39,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 15:47:39,551 INFO L93 Difference]: Finished difference Result 12192 states and 36452 transitions. [2022-03-03 15:47:39,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 15:47:39,551 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 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 102 [2022-03-03 15:47:39,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 15:47:39,621 INFO L225 Difference]: With dead ends: 12192 [2022-03-03 15:47:39,621 INFO L226 Difference]: Without dead ends: 12192 [2022-03-03 15:47:39,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 15:47:39,623 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 2811 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 15:47:39,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 1197 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 15:47:39,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12192 states. [2022-03-03 15:47:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12192 to 12192. [2022-03-03 15:47:39,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12192 states, 12191 states have (on average 2.990074645230088) internal successors, (36452), 12191 states have internal predecessors, (36452), 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) [2022-03-03 15:47:39,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12192 states to 12192 states and 36452 transitions. [2022-03-03 15:47:39,916 INFO L78 Accepts]: Start accepts. Automaton has 12192 states and 36452 transitions. Word has length 102 [2022-03-03 15:47:39,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 15:47:39,918 INFO L470 AbstractCegarLoop]: Abstraction has 12192 states and 36452 transitions. [2022-03-03 15:47:39,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 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) [2022-03-03 15:47:39,918 INFO L276 IsEmpty]: Start isEmpty. Operand 12192 states and 36452 transitions. [2022-03-03 15:47:39,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-03 15:47:39,954 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 15:47:39,954 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 15:47:39,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-03 15:47:40,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 15:47:40,168 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 15:47:40,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 15:47:40,168 INFO L85 PathProgramCache]: Analyzing trace with hash 835265426, now seen corresponding path program 4 times [2022-03-03 15:47:40,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 15:47:40,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519114490] [2022-03-03 15:47:40,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 15:47:40,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 15:47:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 15:47:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:40,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 15:47:40,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519114490] [2022-03-03 15:47:40,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519114490] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 15:47:40,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830933482] [2022-03-03 15:47:40,642 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 15:47:40,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 15:47:40,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 15:47:40,644 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 15:47:40,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 15:47:40,728 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 15:47:40,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 15:47:40,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-03 15:47:40,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 15:47:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 572 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 15:47:43,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:00:32,385 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_~i~0_8 Int)) (or (forall ((v_~j~0_8 Int)) (or (forall ((v_~cur~0_30 Int)) (or (and (forall ((v_~cur~0_28 Int) (aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse0 (* 2 v_~cur~0_26))) (or (< aux_div_v_~cur~0_22_51 (+ .cse0 v_~cur~0_28 v_~cur~0_30 1 c_~cur~0)) (>= aux_mod_v_~cur~0_22_51 2) (< v_~cur~0_26 (+ (* 2 v_~cur~0_28) v_~cur~0_30 c_~cur~0)) (< (+ aux_mod_v_~next~0_20_56 (* 2 aux_mod_v_~cur~0_22_51) 11 v_~i~0_8) (+ .cse0 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_28 v_~cur~0_30 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (> 0 aux_mod_v_~cur~0_22_51) (< v_~prev~0_24 (+ v_~cur~0_28 v_~cur~0_26 v_~cur~0_30 c_~cur~0)) (< v_~cur~0_28 (+ (* 2 v_~cur~0_30) c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 (* 2 v_~i~0_8) aux_mod_v_~cur~0_22_51 (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56)))) (forall ((v_~cur~0_28 Int) (aux_mod_v_~cur~0_22_51 Int) (aux_div_v_~next~0_20_56 Int) (aux_div_v_~cur~0_22_51 Int) (v_~prev~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (let ((.cse1 (* 2 v_~cur~0_26))) (or (< aux_div_v_~cur~0_22_51 (+ .cse1 v_~cur~0_28 v_~cur~0_30 1 c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) (* 2 aux_div_v_~cur~0_22_51) v_~prev~0_24) (+ 23 aux_mod_v_~cur~0_22_51 (* 2 v_~j~0_8) (* aux_mod_v_~next~0_20_56 2))) (>= aux_mod_v_~cur~0_22_51 2) (< v_~cur~0_26 (+ (* 2 v_~cur~0_28) v_~cur~0_30 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (> 0 aux_mod_v_~cur~0_22_51) (< v_~prev~0_24 (+ v_~cur~0_28 v_~cur~0_26 v_~cur~0_30 c_~cur~0)) (< v_~cur~0_28 (+ (* 2 v_~cur~0_30) c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56) (< (+ aux_mod_v_~next~0_20_56 (* 2 aux_mod_v_~cur~0_22_51) 11 v_~j~0_8) (+ .cse1 (* v_~prev~0_24 3) (* aux_div_v_~cur~0_22_51 4) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_28 v_~cur~0_30 c_~cur~0)))))) (< v_~cur~0_30 (+ c_~prev~0 c_~cur~0)))) (not (<= v_~j~0_8 1)))) (not (<= v_~i~0_8 1)))) is different from false Received shutdown request... [2022-03-03 16:01:50,672 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-03 16:01:50,681 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 16:01:50,681 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 16:01:50,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 16:01:50,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:01:50,874 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-9-1 context. [2022-03-03 16:01:50,876 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-03 16:01:50,876 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-03 16:01:50,879 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-03-03 16:01:50,880 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 16:01:50,881 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 16:01:50,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:01:50 BasicIcfg [2022-03-03 16:01:50,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 16:01:50,883 INFO L158 Benchmark]: Toolchain (without parser) took 857456.65ms. Allocated memory was 176.2MB in the beginning and 562.0MB in the end (delta: 385.9MB). Free memory was 118.3MB in the beginning and 373.2MB in the end (delta: -254.9MB). Peak memory consumption was 395.8MB. Max. memory is 8.0GB. [2022-03-03 16:01:50,883 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 16:01:50,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.41ms. Allocated memory was 176.2MB in the beginning and 240.1MB in the end (delta: 64.0MB). Free memory was 118.0MB in the beginning and 203.3MB in the end (delta: -85.3MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2022-03-03 16:01:50,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.35ms. Allocated memory is still 240.1MB. Free memory was 203.3MB in the beginning and 201.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 16:01:50,884 INFO L158 Benchmark]: Boogie Preprocessor took 30.62ms. Allocated memory is still 240.1MB. Free memory was 201.2MB in the beginning and 199.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 16:01:50,884 INFO L158 Benchmark]: RCFGBuilder took 368.58ms. Allocated memory is still 240.1MB. Free memory was 199.6MB in the beginning and 185.5MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-03 16:01:50,886 INFO L158 Benchmark]: TraceAbstraction took 856575.22ms. Allocated memory was 240.1MB in the beginning and 562.0MB in the end (delta: 321.9MB). Free memory was 184.9MB in the beginning and 373.2MB in the end (delta: -188.2MB). Peak memory consumption was 398.6MB. Max. memory is 8.0GB. [2022-03-03 16:01:50,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 426.41ms. Allocated memory was 176.2MB in the beginning and 240.1MB in the end (delta: 64.0MB). Free memory was 118.0MB in the beginning and 203.3MB in the end (delta: -85.3MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.35ms. Allocated memory is still 240.1MB. Free memory was 203.3MB in the beginning and 201.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.62ms. Allocated memory is still 240.1MB. Free memory was 201.2MB in the beginning and 199.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 368.58ms. Allocated memory is still 240.1MB. Free memory was 199.6MB in the beginning and 185.5MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 856575.22ms. Allocated memory was 240.1MB in the beginning and 562.0MB in the end (delta: 321.9MB). Free memory was 184.9MB in the beginning and 373.2MB in the end (delta: -188.2MB). Peak memory consumption was 398.6MB. 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 - TimeoutResultAtElement [Line: 726]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-9-1 context. - TimeoutResultAtElement [Line: 722]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-9-1 context. - TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-9-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 856.4s, OverallIterations: 6, TraceHistogramMax: 15, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4356 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4356 mSDsluCounter, 2427 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2006 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 206 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 439 mSDtfsCounter, 206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 546 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1019 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12192occurred in iteration=5, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 500 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 1285 SizeOfPredicates, 22 NumberOfNonLiveVariables, 552 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 0/537 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown