/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-C-DAC/pthread-demo-datarace-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 12:22:03,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 12:22:03,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 12:22:03,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-28 12:22:03,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-28 12:22:03,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-28 12:22:03,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-28 12:22:03,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-28 12:22:03,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-28 12:22:03,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-28 12:22:03,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-28 12:22:03,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-28 12:22:03,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 12:22:03,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 12:22:03,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 12:22:03,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 12:22:03,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 12:22:03,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 12:22:03,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 12:22:03,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 12:22:03,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 12:22:03,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 12:22:03,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 12:22:03,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 12:22:03,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-28 12:22:03,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 12:22:03,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 12:22:03,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 12:22:03,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-28 12:22:03,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 12:22:03,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 12:22:03,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 12:22:03,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 12:22:03,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 12:22:03,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 12:22:03,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 12:22:03,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 12:22:03,351 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 12:22:03,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 12:22:03,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 12:22:03,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 12:22:03,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 12:22:03,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 12:22:03,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 12:22:03,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 12:22:03,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 12:22:03,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 12:22:03,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 12:22:03,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 12:22:03,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 12:22:03,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 12:22:03,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 12:22:03,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 12:22:03,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 12:22:03,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:22:03,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 12:22:03,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 12:22:03,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 12:22:03,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 12:22:03,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 12:22:03,354 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 12:22:03,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 12:22:03,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 12:22:03,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 12:22:03,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 12:22:03,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 12:22:03,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 12:22:03,577 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 12:22:03,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-01-28 12:22:03,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87772031b/d47229155092458fb56fc23573614c3f/FLAG94d18aeb0 [2022-01-28 12:22:04,083 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 12:22:04,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-01-28 12:22:04,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87772031b/d47229155092458fb56fc23573614c3f/FLAG94d18aeb0 [2022-01-28 12:22:04,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87772031b/d47229155092458fb56fc23573614c3f [2022-01-28 12:22:04,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 12:22:04,401 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 12:22:04,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 12:22:04,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 12:22:04,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 12:22:04,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3199214a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04, skipping insertion in model container [2022-01-28 12:22:04,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 12:22:04,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 12:22:04,603 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-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-01-28 12:22:04,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:22:04,806 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 12:22:04,813 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-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-01-28 12:22:04,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:22:04,894 INFO L208 MainTranslator]: Completed translation [2022-01-28 12:22:04,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04 WrapperNode [2022-01-28 12:22:04,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 12:22:04,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 12:22:04,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 12:22:04,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 12:22:04,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,947 INFO L137 Inliner]: procedures = 364, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-01-28 12:22:04,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 12:22:04,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 12:22:04,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 12:22:04,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 12:22:04,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 12:22:04,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 12:22:04,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 12:22:04,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 12:22:04,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (1/1) ... [2022-01-28 12:22:04,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:22:05,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:22:05,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-28 12:22:05,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-28 12:22:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 12:22:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 12:22:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-28 12:22:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 12:22:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-28 12:22:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 12:22:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2022-01-28 12:22:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2022-01-28 12:22:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 12:22:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 12:22:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 12:22:05,040 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 12:22:05,148 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 12:22:05,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 12:22:05,267 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 12:22:05,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 12:22:05,272 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-28 12:22:05,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:22:05 BoogieIcfgContainer [2022-01-28 12:22:05,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 12:22:05,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 12:22:05,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 12:22:05,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 12:22:05,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:22:04" (1/3) ... [2022-01-28 12:22:05,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad87cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:22:05, skipping insertion in model container [2022-01-28 12:22:05,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:22:04" (2/3) ... [2022-01-28 12:22:05,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad87cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:22:05, skipping insertion in model container [2022-01-28 12:22:05,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:22:05" (3/3) ... [2022-01-28 12:22:05,282 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2022-01-28 12:22:05,285 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 12:22:05,285 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 12:22:05,285 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 12:22:05,285 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 12:22:05,301 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,302 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,302 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,302 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,302 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,302 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,302 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,302 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,303 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,303 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,303 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,303 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,303 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,303 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,303 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,303 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,303 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,304 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,304 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,304 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,304 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,304 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,304 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,304 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,305 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,305 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,305 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,305 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,305 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,305 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,305 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,305 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,305 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,306 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,306 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,306 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,306 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,306 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,306 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,306 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,306 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,307 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,307 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,307 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,307 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,307 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,309 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,309 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,309 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,310 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,310 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,310 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,310 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,310 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,310 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:22:05,313 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-28 12:22:05,341 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 12:22:05,345 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-28 12:22:05,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-28 12:22:05,352 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 97 transitions, 202 flow [2022-01-28 12:22:05,393 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 353 states, 352 states have (on average 2.0255681818181817) internal successors, (713), 352 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:05,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 353 states, 352 states have (on average 2.0255681818181817) internal successors, (713), 352 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:05,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-28 12:22:05,408 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:05,408 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] [2022-01-28 12:22:05,409 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:05,413 INFO L85 PathProgramCache]: Analyzing trace with hash -412203326, now seen corresponding path program 1 times [2022-01-28 12:22:05,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:05,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812320060] [2022-01-28 12:22:05,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:05,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:05,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:05,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812320060] [2022-01-28 12:22:05,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812320060] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:22:05,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:22:05,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-28 12:22:05,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720619079] [2022-01-28 12:22:05,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:22:05,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-28 12:22:05,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:05,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-28 12:22:05,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-28 12:22:05,642 INFO L87 Difference]: Start difference. First operand has 353 states, 352 states have (on average 2.0255681818181817) internal successors, (713), 352 states have internal predecessors, (713), 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 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:05,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:05,677 INFO L93 Difference]: Finished difference Result 351 states and 657 transitions. [2022-01-28 12:22:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 12:22:05,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2022-01-28 12:22:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:05,690 INFO L225 Difference]: With dead ends: 351 [2022-01-28 12:22:05,690 INFO L226 Difference]: Without dead ends: 297 [2022-01-28 12:22:05,695 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 [2022-01-28 12:22:05,702 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 [2022-01-28 12:22:05,703 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] [2022-01-28 12:22:05,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-01-28 12:22:05,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2022-01-28 12:22:05,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.8547297297297298) internal successors, (549), 296 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 549 transitions. [2022-01-28 12:22:05,762 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 549 transitions. Word has length 58 [2022-01-28 12:22:05,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:05,763 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 549 transitions. [2022-01-28 12:22:05,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:05,763 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 549 transitions. [2022-01-28 12:22:05,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-28 12:22:05,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:05,770 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] [2022-01-28 12:22:05,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 12:22:05,770 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:05,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:05,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1088740258, now seen corresponding path program 1 times [2022-01-28 12:22:05,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:05,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95803218] [2022-01-28 12:22:05,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:05,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:05,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:05,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95803218] [2022-01-28 12:22:05,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95803218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:22:05,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:22:05,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 12:22:05,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276037251] [2022-01-28 12:22:05,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:22:05,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 12:22:05,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:05,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 12:22:05,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 12:22:05,878 INFO L87 Difference]: Start difference. First operand 297 states and 549 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:05,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:05,909 INFO L93 Difference]: Finished difference Result 437 states and 829 transitions. [2022-01-28 12:22:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 12:22:05,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-01-28 12:22:05,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:05,912 INFO L225 Difference]: With dead ends: 437 [2022-01-28 12:22:05,912 INFO L226 Difference]: Without dead ends: 437 [2022-01-28 12:22:05,912 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 [2022-01-28 12:22:05,913 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 23 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:22:05,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 156 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:22:05,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-01-28 12:22:05,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 311. [2022-01-28 12:22:05,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.8612903225806452) internal successors, (577), 310 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 577 transitions. [2022-01-28 12:22:05,928 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 577 transitions. Word has length 58 [2022-01-28 12:22:05,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:05,928 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 577 transitions. [2022-01-28 12:22:05,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 577 transitions. [2022-01-28 12:22:05,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-28 12:22:05,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:05,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:22:05,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 12:22:05,930 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:05,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:05,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1826468594, now seen corresponding path program 1 times [2022-01-28 12:22:05,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:05,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173823718] [2022-01-28 12:22:05,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:05,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:06,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:06,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173823718] [2022-01-28 12:22:06,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173823718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:22:06,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:22:06,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 12:22:06,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103350954] [2022-01-28 12:22:06,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:22:06,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 12:22:06,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:06,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 12:22:06,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 12:22:06,028 INFO L87 Difference]: Start difference. First operand 311 states and 577 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:06,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:06,059 INFO L93 Difference]: Finished difference Result 444 states and 843 transitions. [2022-01-28 12:22:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 12:22:06,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-01-28 12:22:06,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:06,062 INFO L225 Difference]: With dead ends: 444 [2022-01-28 12:22:06,063 INFO L226 Difference]: Without dead ends: 444 [2022-01-28 12:22:06,066 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 [2022-01-28 12:22:06,068 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 24 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:22:06,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 159 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:22:06,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-01-28 12:22:06,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 330. [2022-01-28 12:22:06,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 329 states have (on average 1.8693009118541033) internal successors, (615), 329 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:06,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 615 transitions. [2022-01-28 12:22:06,078 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 615 transitions. Word has length 69 [2022-01-28 12:22:06,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:06,085 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 615 transitions. [2022-01-28 12:22:06,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:06,086 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 615 transitions. [2022-01-28 12:22:06,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-28 12:22:06,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:06,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:22:06,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 12:22:06,089 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:06,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:06,089 INFO L85 PathProgramCache]: Analyzing trace with hash 88002593, now seen corresponding path program 1 times [2022-01-28 12:22:06,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:06,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346634614] [2022-01-28 12:22:06,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:06,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:06,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:06,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346634614] [2022-01-28 12:22:06,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346634614] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:22:06,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244513937] [2022-01-28 12:22:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:06,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:06,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:22:06,211 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) [2022-01-28 12:22:06,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-28 12:22:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:06,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-28 12:22:06,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:22:06,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:06,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:22:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:06,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244513937] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:22:06,629 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:22:06,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-28 12:22:06,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376440733] [2022-01-28 12:22:06,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:22:06,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 12:22:06,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:06,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 12:22:06,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-28 12:22:06,631 INFO L87 Difference]: Start difference. First operand 330 states and 615 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:06,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:06,688 INFO L93 Difference]: Finished difference Result 634 states and 1223 transitions. [2022-01-28 12:22:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 12:22:06,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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 77 [2022-01-28 12:22:06,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:06,691 INFO L225 Difference]: With dead ends: 634 [2022-01-28 12:22:06,691 INFO L226 Difference]: Without dead ends: 634 [2022-01-28 12:22:06,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-28 12:22:06,696 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 303 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:22:06,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 518 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:22:06,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-01-28 12:22:06,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2022-01-28 12:22:06,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 633 states have (on average 1.9320695102685623) internal successors, (1223), 633 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:06,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1223 transitions. [2022-01-28 12:22:06,707 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1223 transitions. Word has length 77 [2022-01-28 12:22:06,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:06,708 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1223 transitions. [2022-01-28 12:22:06,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:06,708 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1223 transitions. [2022-01-28 12:22:06,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-28 12:22:06,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:06,709 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:22:06,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-28 12:22:06,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:06,924 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:06,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:06,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1150192967, now seen corresponding path program 2 times [2022-01-28 12:22:06,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:06,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015708877] [2022-01-28 12:22:06,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:06,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-28 12:22:06,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:06,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015708877] [2022-01-28 12:22:06,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015708877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:22:06,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:22:06,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 12:22:06,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086832405] [2022-01-28 12:22:06,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:22:06,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 12:22:06,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:06,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 12:22:06,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 12:22:06,977 INFO L87 Difference]: Start difference. First operand 634 states and 1223 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:06,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:06,999 INFO L93 Difference]: Finished difference Result 580 states and 1088 transitions. [2022-01-28 12:22:06,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 12:22:06,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 93 [2022-01-28 12:22:07,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:07,002 INFO L225 Difference]: With dead ends: 580 [2022-01-28 12:22:07,002 INFO L226 Difference]: Without dead ends: 580 [2022-01-28 12:22:07,004 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 [2022-01-28 12:22:07,005 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 21 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:22:07,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 152 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:22:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-01-28 12:22:07,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2022-01-28 12:22:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 1.8791018998272884) internal successors, (1088), 579 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:07,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1088 transitions. [2022-01-28 12:22:07,017 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1088 transitions. Word has length 93 [2022-01-28 12:22:07,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:07,017 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 1088 transitions. [2022-01-28 12:22:07,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:07,018 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1088 transitions. [2022-01-28 12:22:07,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-28 12:22:07,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:07,019 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:22:07,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 12:22:07,019 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:07,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:07,020 INFO L85 PathProgramCache]: Analyzing trace with hash 746770257, now seen corresponding path program 3 times [2022-01-28 12:22:07,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:07,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815754604] [2022-01-28 12:22:07,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:07,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-28 12:22:07,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:07,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815754604] [2022-01-28 12:22:07,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815754604] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:22:07,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78922993] [2022-01-28 12:22:07,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-28 12:22:07,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:07,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:22:07,088 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) [2022-01-28 12:22:07,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-28 12:22:07,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-28 12:22:07,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 12:22:07,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-28 12:22:07,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:22:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-28 12:22:07,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:22:07,470 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-28 12:22:07,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78922993] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:22:07,470 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:22:07,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-28 12:22:07,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179203951] [2022-01-28 12:22:07,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:22:07,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 12:22:07,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:07,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 12:22:07,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-28 12:22:07,473 INFO L87 Difference]: Start difference. First operand 580 states and 1088 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:07,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:07,527 INFO L93 Difference]: Finished difference Result 1154 states and 2182 transitions. [2022-01-28 12:22:07,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 12:22:07,528 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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 93 [2022-01-28 12:22:07,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:07,531 INFO L225 Difference]: With dead ends: 1154 [2022-01-28 12:22:07,532 INFO L226 Difference]: Without dead ends: 1154 [2022-01-28 12:22:07,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-28 12:22:07,533 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 171 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:22:07,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 572 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:22:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-01-28 12:22:07,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1154. [2022-01-28 12:22:07,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 1.8924544666088465) internal successors, (2182), 1153 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 2182 transitions. [2022-01-28 12:22:07,555 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 2182 transitions. Word has length 93 [2022-01-28 12:22:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:07,555 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 2182 transitions. [2022-01-28 12:22:07,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 2182 transitions. [2022-01-28 12:22:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-28 12:22:07,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:07,557 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-01-28 12:22:07,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-28 12:22:07,766 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,SelfDestructingSolverStorable5 [2022-01-28 12:22:07,766 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:07,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:07,767 INFO L85 PathProgramCache]: Analyzing trace with hash -27559221, now seen corresponding path program 4 times [2022-01-28 12:22:07,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:07,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279342910] [2022-01-28 12:22:07,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:07,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:07,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:07,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279342910] [2022-01-28 12:22:07,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279342910] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:22:07,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178908459] [2022-01-28 12:22:07,868 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-28 12:22:07,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:07,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:22:07,869 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) [2022-01-28 12:22:07,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-28 12:22:07,965 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-28 12:22:07,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 12:22:07,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-28 12:22:07,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:22:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:08,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:22:08,296 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:08,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178908459] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:22:08,296 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:22:08,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-28 12:22:08,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131506561] [2022-01-28 12:22:08,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:22:08,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 12:22:08,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:08,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 12:22:08,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-28 12:22:08,298 INFO L87 Difference]: Start difference. First operand 1154 states and 2182 transitions. Second operand has 18 states, 18 states have (on average 10.61111111111111) internal successors, (191), 18 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:08,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:08,421 INFO L93 Difference]: Finished difference Result 2302 states and 4370 transitions. [2022-01-28 12:22:08,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-28 12:22:08,422 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.61111111111111) internal successors, (191), 18 states have internal predecessors, (191), 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 115 [2022-01-28 12:22:08,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:08,429 INFO L225 Difference]: With dead ends: 2302 [2022-01-28 12:22:08,429 INFO L226 Difference]: Without dead ends: 2302 [2022-01-28 12:22:08,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-01-28 12:22:08,430 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 680 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:22:08,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 615 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:22:08,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-01-28 12:22:08,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2022-01-28 12:22:08,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2301 states have (on average 1.899174272055628) internal successors, (4370), 2301 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:08,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 4370 transitions. [2022-01-28 12:22:08,462 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 4370 transitions. Word has length 115 [2022-01-28 12:22:08,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:08,462 INFO L470 AbstractCegarLoop]: Abstraction has 2302 states and 4370 transitions. [2022-01-28 12:22:08,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.61111111111111) internal successors, (191), 18 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:08,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 4370 transitions. [2022-01-28 12:22:08,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-28 12:22:08,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:08,466 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 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, 1, 1, 1, 1, 1] [2022-01-28 12:22:08,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-28 12:22:08,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:08,681 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:08,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:08,682 INFO L85 PathProgramCache]: Analyzing trace with hash -617723337, now seen corresponding path program 5 times [2022-01-28 12:22:08,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:08,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977874752] [2022-01-28 12:22:08,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:08,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:08,748 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-28 12:22:08,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:08,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977874752] [2022-01-28 12:22:08,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977874752] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:22:08,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154444965] [2022-01-28 12:22:08,749 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-28 12:22:08,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:08,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:22:08,750 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) [2022-01-28 12:22:08,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-28 12:22:08,820 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-01-28 12:22:08,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 12:22:08,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-28 12:22:08,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:22:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-28 12:22:09,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:22:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-28 12:22:09,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154444965] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:22:09,262 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:22:09,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-28 12:22:09,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250228628] [2022-01-28 12:22:09,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:22:09,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 12:22:09,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:09,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 12:22:09,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-28 12:22:09,263 INFO L87 Difference]: Start difference. First operand 2302 states and 4370 transitions. Second operand has 18 states, 18 states have (on average 11.38888888888889) internal successors, (205), 18 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:09,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:09,447 INFO L93 Difference]: Finished difference Result 4518 states and 8550 transitions. [2022-01-28 12:22:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-28 12:22:09,447 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 11.38888888888889) internal successors, (205), 18 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2022-01-28 12:22:09,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:09,459 INFO L225 Difference]: With dead ends: 4518 [2022-01-28 12:22:09,459 INFO L226 Difference]: Without dead ends: 4518 [2022-01-28 12:22:09,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-01-28 12:22:09,460 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 810 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:22:09,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [810 Valid, 750 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:22:09,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2022-01-28 12:22:09,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4518. [2022-01-28 12:22:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 4517 states have (on average 1.8928492362187292) internal successors, (8550), 4517 states have internal predecessors, (8550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:09,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 8550 transitions. [2022-01-28 12:22:09,537 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 8550 transitions. Word has length 159 [2022-01-28 12:22:09,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:09,537 INFO L470 AbstractCegarLoop]: Abstraction has 4518 states and 8550 transitions. [2022-01-28 12:22:09,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.38888888888889) internal successors, (205), 18 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 8550 transitions. [2022-01-28 12:22:09,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-01-28 12:22:09,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:09,545 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1] [2022-01-28 12:22:09,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-28 12:22:09,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:09,755 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:09,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:09,756 INFO L85 PathProgramCache]: Analyzing trace with hash -695670005, now seen corresponding path program 6 times [2022-01-28 12:22:09,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:09,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21726836] [2022-01-28 12:22:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:09,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 31 proven. 382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:09,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:09,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21726836] [2022-01-28 12:22:09,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21726836] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:22:09,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679116561] [2022-01-28 12:22:09,919 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-28 12:22:09,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:09,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:22:09,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 12:22:09,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-28 12:22:10,053 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-01-28 12:22:10,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 12:22:10,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-28 12:22:10,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:22:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 31 proven. 382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:10,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:22:10,846 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 31 proven. 382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:10,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679116561] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:22:10,846 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:22:10,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-01-28 12:22:10,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090730305] [2022-01-28 12:22:10,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:22:10,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-28 12:22:10,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:10,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-28 12:22:10,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-01-28 12:22:10,848 INFO L87 Difference]: Start difference. First operand 4518 states and 8550 transitions. Second operand has 34 states, 34 states have (on average 10.088235294117647) internal successors, (343), 34 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:11,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:11,347 INFO L93 Difference]: Finished difference Result 9054 states and 17118 transitions. [2022-01-28 12:22:11,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-28 12:22:11,347 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 10.088235294117647) internal successors, (343), 34 states have internal predecessors, (343), 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 191 [2022-01-28 12:22:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:11,376 INFO L225 Difference]: With dead ends: 9054 [2022-01-28 12:22:11,377 INFO L226 Difference]: Without dead ends: 9054 [2022-01-28 12:22:11,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-01-28 12:22:11,378 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 1871 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:22:11,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1871 Valid, 1114 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:22:11,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9054 states. [2022-01-28 12:22:11,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9054 to 9054. [2022-01-28 12:22:11,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 1.8908649066607754) internal successors, (17118), 9053 states have internal predecessors, (17118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:11,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 17118 transitions. [2022-01-28 12:22:11,579 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 17118 transitions. Word has length 191 [2022-01-28 12:22:11,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:11,579 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 17118 transitions. [2022-01-28 12:22:11,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.088235294117647) internal successors, (343), 34 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:11,579 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 17118 transitions. [2022-01-28 12:22:11,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-01-28 12:22:11,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:11,596 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 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, 1, 1, 1, 1, 1] [2022-01-28 12:22:11,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-28 12:22:11,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:11,807 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:11,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:11,808 INFO L85 PathProgramCache]: Analyzing trace with hash 447962103, now seen corresponding path program 7 times [2022-01-28 12:22:11,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:11,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327654559] [2022-01-28 12:22:11,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:11,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 652 proven. 406 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-01-28 12:22:12,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:12,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327654559] [2022-01-28 12:22:12,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327654559] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:22:12,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028997176] [2022-01-28 12:22:12,012 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-28 12:22:12,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:12,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:22:12,026 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 12:22:12,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-28 12:22:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:12,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-28 12:22:12,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:22:12,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 652 proven. 406 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-01-28 12:22:12,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:22:13,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 652 proven. 406 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-01-28 12:22:13,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028997176] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:22:13,178 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:22:13,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-01-28 12:22:13,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592794001] [2022-01-28 12:22:13,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:22:13,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-28 12:22:13,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:13,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-28 12:22:13,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-01-28 12:22:13,180 INFO L87 Difference]: Start difference. First operand 9054 states and 17118 transitions. Second operand has 34 states, 34 states have (on average 10.5) internal successors, (357), 34 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:22:13,697 INFO L93 Difference]: Finished difference Result 17966 states and 33862 transitions. [2022-01-28 12:22:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-28 12:22:13,698 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 10.5) internal successors, (357), 34 states have internal predecessors, (357), 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 279 [2022-01-28 12:22:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:22:13,742 INFO L225 Difference]: With dead ends: 17966 [2022-01-28 12:22:13,742 INFO L226 Difference]: Without dead ends: 17966 [2022-01-28 12:22:13,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-01-28 12:22:13,744 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 2523 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:22:13,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2523 Valid, 1161 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:22:13,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17966 states. [2022-01-28 12:22:13,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17966 to 17966. [2022-01-28 12:22:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17966 states, 17965 states have (on average 1.8848872808238242) internal successors, (33862), 17965 states have internal predecessors, (33862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:14,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17966 states to 17966 states and 33862 transitions. [2022-01-28 12:22:14,032 INFO L78 Accepts]: Start accepts. Automaton has 17966 states and 33862 transitions. Word has length 279 [2022-01-28 12:22:14,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:22:14,032 INFO L470 AbstractCegarLoop]: Abstraction has 17966 states and 33862 transitions. [2022-01-28 12:22:14,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.5) internal successors, (357), 34 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:22:14,033 INFO L276 IsEmpty]: Start isEmpty. Operand 17966 states and 33862 transitions. [2022-01-28 12:22:14,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-01-28 12:22:14,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:22:14,066 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 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, 1, 1, 1, 1, 1] [2022-01-28 12:22:14,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-28 12:22:14,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:14,280 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:22:14,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:22:14,280 INFO L85 PathProgramCache]: Analyzing trace with hash 970632075, now seen corresponding path program 8 times [2022-01-28 12:22:14,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:22:14,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445670272] [2022-01-28 12:22:14,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:22:14,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:22:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:22:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 71 proven. 1954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:14,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:22:14,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445670272] [2022-01-28 12:22:14,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445670272] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:22:14,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381892956] [2022-01-28 12:22:14,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-28 12:22:14,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:22:14,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:22:14,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 12:22:14,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-28 12:22:14,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-28 12:22:14,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 12:22:14,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-28 12:22:14,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:22:16,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 57 proven. 1968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:16,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:22:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 57 proven. 1968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:22:16,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381892956] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:22:16,793 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:22:16,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 72 [2022-01-28 12:22:16,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948963534] [2022-01-28 12:22:16,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:22:16,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-01-28 12:22:16,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:22:16,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-01-28 12:22:16,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=727, Invalid=4385, Unknown=0, NotChecked=0, Total=5112 [2022-01-28 12:22:16,797 INFO L87 Difference]: Start difference. First operand 17966 states and 33862 transitions. Second operand has 72 states, 72 states have (on average 9.972222222222221) internal successors, (718), 72 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:28:47,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:28:47,884 INFO L93 Difference]: Finished difference Result 26156 states and 49207 transitions. [2022-01-28 12:28:47,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2774 states. [2022-01-28 12:28:47,885 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 9.972222222222221) internal successors, (718), 72 states have internal predecessors, (718), 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 343 [2022-01-28 12:28:47,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:28:47,947 INFO L225 Difference]: With dead ends: 26156 [2022-01-28 12:28:47,947 INFO L226 Difference]: Without dead ends: 26156 [2022-01-28 12:28:48,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4449 GetRequests, 1642 SyntacticMatches, 1 SemanticMatches, 2806 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4086993 ImplicationChecksByTransitivity, 365.3s TimeCoverageRelationStatistics Valid=1304691, Invalid=6577365, Unknown=0, NotChecked=0, Total=7882056 [2022-01-28 12:28:48,908 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 49604 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 4948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49604 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 5855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4948 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-28 12:28:48,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49604 Valid, 2794 Invalid, 5855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4948 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-28 12:28:48,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26156 states. [2022-01-28 12:28:49,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26156 to 25013. [2022-01-28 12:28:49,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25013 states, 25012 states have (on average 1.8831360946745561) internal successors, (47101), 25012 states have internal predecessors, (47101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:28:49,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25013 states to 25013 states and 47101 transitions. [2022-01-28 12:28:49,254 INFO L78 Accepts]: Start accepts. Automaton has 25013 states and 47101 transitions. Word has length 343 [2022-01-28 12:28:49,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:28:49,255 INFO L470 AbstractCegarLoop]: Abstraction has 25013 states and 47101 transitions. [2022-01-28 12:28:49,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 9.972222222222221) internal successors, (718), 72 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:28:49,255 INFO L276 IsEmpty]: Start isEmpty. Operand 25013 states and 47101 transitions. [2022-01-28 12:28:49,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-01-28 12:28:49,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:28:49,320 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:28:49,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-28 12:28:49,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:28:49,535 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:28:49,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:28:49,536 INFO L85 PathProgramCache]: Analyzing trace with hash -453903054, now seen corresponding path program 9 times [2022-01-28 12:28:49,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:28:49,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316109144] [2022-01-28 12:28:49,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:28:49,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:28:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:28:50,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 572 proven. 2236 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-28 12:28:50,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:28:50,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316109144] [2022-01-28 12:28:50,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316109144] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:28:50,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221848794] [2022-01-28 12:28:50,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-28 12:28:50,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:28:50,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:28:50,337 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 12:28:50,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-28 12:28:50,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2022-01-28 12:28:50,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 12:28:50,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 34 conjunts are in the unsatisfiable core [2022-01-28 12:28:50,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:28:51,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 572 proven. 2236 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-28 12:28:51,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:28:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 572 proven. 2236 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-28 12:28:51,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221848794] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:28:51,897 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:28:51,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 43 [2022-01-28 12:28:51,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460907629] [2022-01-28 12:28:51,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:28:51,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-28 12:28:51,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:28:51,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-28 12:28:51,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-01-28 12:28:51,899 INFO L87 Difference]: Start difference. First operand 25013 states and 47101 transitions. Second operand has 43 states, 43 states have (on average 10.372093023255815) internal successors, (446), 43 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:28:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:28:52,836 INFO L93 Difference]: Finished difference Result 30921 states and 58197 transitions. [2022-01-28 12:28:52,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-28 12:28:52,836 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 10.372093023255815) internal successors, (446), 43 states have internal predecessors, (446), 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 394 [2022-01-28 12:28:52,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:28:52,883 INFO L225 Difference]: With dead ends: 30921 [2022-01-28 12:28:52,883 INFO L226 Difference]: Without dead ends: 30921 [2022-01-28 12:28:52,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 779 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=2044, Invalid=4436, Unknown=0, NotChecked=0, Total=6480 [2022-01-28 12:28:52,884 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 2562 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:28:52,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2562 Valid, 1369 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:28:52,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30921 states. [2022-01-28 12:28:53,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30921 to 30921. [2022-01-28 12:28:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30921 states, 30920 states have (on average 1.8821798188874515) internal successors, (58197), 30920 states have internal predecessors, (58197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:28:53,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30921 states to 30921 states and 58197 transitions. [2022-01-28 12:28:53,264 INFO L78 Accepts]: Start accepts. Automaton has 30921 states and 58197 transitions. Word has length 394 [2022-01-28 12:28:53,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:28:53,265 INFO L470 AbstractCegarLoop]: Abstraction has 30921 states and 58197 transitions. [2022-01-28 12:28:53,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 10.372093023255815) internal successors, (446), 43 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:28:53,265 INFO L276 IsEmpty]: Start isEmpty. Operand 30921 states and 58197 transitions. [2022-01-28 12:28:53,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-01-28 12:28:53,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:28:53,383 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:28:53,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-28 12:28:53,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-01-28 12:28:53,598 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:28:53,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:28:53,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1784322982, now seen corresponding path program 10 times [2022-01-28 12:28:53,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:28:53,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083590958] [2022-01-28 12:28:53,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:28:53,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:28:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:28:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:28:56,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:28:56,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083590958] [2022-01-28 12:28:56,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083590958] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:28:56,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124053377] [2022-01-28 12:28:56,282 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-28 12:28:56,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:28:56,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:28:56,283 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 12:28:56,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-28 12:28:56,613 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-28 12:28:56,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 12:28:56,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-01-28 12:28:56,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:28:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:28:58,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:28:59,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:28:59,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124053377] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:28:59,703 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:28:59,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-01-28 12:28:59,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702651440] [2022-01-28 12:28:59,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:28:59,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-01-28 12:28:59,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:28:59,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-01-28 12:28:59,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-01-28 12:28:59,705 INFO L87 Difference]: Start difference. First operand 30921 states and 58197 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:30:17,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:30:17,076 INFO L93 Difference]: Finished difference Result 764550 states and 1465032 transitions. [2022-01-28 12:30:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 981 states. [2022-01-28 12:30:17,076 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-01-28 12:30:17,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:30:19,198 INFO L225 Difference]: With dead ends: 764550 [2022-01-28 12:30:19,198 INFO L226 Difference]: Without dead ends: 764290 [2022-01-28 12:30:19,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1858 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 984 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405331 ImplicationChecksByTransitivity, 31.2s TimeCoverageRelationStatistics Valid=3949, Invalid=967261, Unknown=0, NotChecked=0, Total=971210 [2022-01-28 12:30:19,251 INFO L933 BasicCegarLoop]: 13882 mSDtfsCounter, 16494 mSDsluCounter, 1124995 mSDsCounter, 0 mSdLazyCounter, 154652 mSolverCounterSat, 977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16494 SdHoareTripleChecker+Valid, 1137193 SdHoareTripleChecker+Invalid, 155629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.2s SdHoareTripleChecker+Time, 977 IncrementalHoareTripleChecker+Valid, 154652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.4s IncrementalHoareTripleChecker+Time [2022-01-28 12:30:19,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16494 Valid, 1137193 Invalid, 155629 Unknown, 0 Unchecked, 1.2s Time], IncrementalHoareTripleChecker [977 Valid, 154652 Invalid, 0 Unknown, 0 Unchecked, 41.4s Time] [2022-01-28 12:30:20,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764290 states. [2022-01-28 12:30:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764290 to 32595. [2022-01-28 12:30:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32595 states, 32594 states have (on average 1.8841197766460085) internal successors, (61411), 32594 states have internal predecessors, (61411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:30:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32595 states to 32595 states and 61411 transitions. [2022-01-28 12:30:24,859 INFO L78 Accepts]: Start accepts. Automaton has 32595 states and 61411 transitions. Word has length 438 [2022-01-28 12:30:24,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:30:24,860 INFO L470 AbstractCegarLoop]: Abstraction has 32595 states and 61411 transitions. [2022-01-28 12:30:24,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:30:24,860 INFO L276 IsEmpty]: Start isEmpty. Operand 32595 states and 61411 transitions. [2022-01-28 12:30:24,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-01-28 12:30:24,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:30:24,906 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:30:24,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-28 12:30:25,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-28 12:30:25,119 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:30:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:30:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2051785962, now seen corresponding path program 11 times [2022-01-28 12:30:25,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:30:25,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619679975] [2022-01-28 12:30:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:30:25,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:30:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:30:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:30:28,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:30:28,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619679975] [2022-01-28 12:30:28,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619679975] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:30:28,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26147725] [2022-01-28 12:30:28,056 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-28 12:30:28,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:30:28,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:30:28,057 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 12:30:28,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-28 12:30:28,365 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-01-28 12:30:28,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 12:30:28,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-01-28 12:30:28,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:30:29,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:30:29,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:30:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:30:31,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26147725] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:30:31,164 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:30:31,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-01-28 12:30:31,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895894983] [2022-01-28 12:30:31,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:30:31,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-01-28 12:30:31,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:30:31,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-01-28 12:30:31,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-01-28 12:30:31,181 INFO L87 Difference]: Start difference. First operand 32595 states and 61411 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:31:47,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:31:47,132 INFO L93 Difference]: Finished difference Result 746382 states and 1431433 transitions. [2022-01-28 12:31:47,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 938 states. [2022-01-28 12:31:47,133 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-01-28 12:31:47,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:31:49,178 INFO L225 Difference]: With dead ends: 746382 [2022-01-28 12:31:49,178 INFO L226 Difference]: Without dead ends: 746369 [2022-01-28 12:31:49,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1816 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 942 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368506 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=3610, Invalid=886582, Unknown=0, NotChecked=0, Total=890192 [2022-01-28 12:31:49,222 INFO L933 BasicCegarLoop]: 13826 mSDtfsCounter, 16117 mSDsluCounter, 1147131 mSDsCounter, 0 mSdLazyCounter, 155287 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16117 SdHoareTripleChecker+Valid, 1159315 SdHoareTripleChecker+Invalid, 156257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.0s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 155287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2022-01-28 12:31:49,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16117 Valid, 1159315 Invalid, 156257 Unknown, 0 Unchecked, 1.0s Time], IncrementalHoareTripleChecker [970 Valid, 155287 Invalid, 0 Unknown, 0 Unchecked, 41.5s Time] [2022-01-28 12:31:50,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746369 states. [2022-01-28 12:31:54,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746369 to 32679. [2022-01-28 12:31:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32679 states, 32678 states have (on average 1.8846624640430871) internal successors, (61587), 32678 states have internal predecessors, (61587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:31:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32679 states to 32679 states and 61587 transitions. [2022-01-28 12:31:54,959 INFO L78 Accepts]: Start accepts. Automaton has 32679 states and 61587 transitions. Word has length 438 [2022-01-28 12:31:54,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:31:54,960 INFO L470 AbstractCegarLoop]: Abstraction has 32679 states and 61587 transitions. [2022-01-28 12:31:54,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:31:54,960 INFO L276 IsEmpty]: Start isEmpty. Operand 32679 states and 61587 transitions. [2022-01-28 12:31:55,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-01-28 12:31:55,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:31:55,021 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 12:31:55,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-28 12:31:55,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-01-28 12:31:55,235 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-28 12:31:55,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:31:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1995053348, now seen corresponding path program 12 times [2022-01-28 12:31:55,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:31:55,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245706080] [2022-01-28 12:31:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:31:55,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:31:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:31:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:31:58,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:31:58,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245706080] [2022-01-28 12:31:58,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245706080] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 12:31:58,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110626075] [2022-01-28 12:31:58,027 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-28 12:31:58,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 12:31:58,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:31:58,028 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 12:31:58,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-28 12:31:58,428 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2022-01-28 12:31:58,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 12:31:58,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-01-28 12:31:58,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 12:31:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:31:59,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 12:32:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:32:01,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110626075] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 12:32:01,030 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 12:32:01,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-01-28 12:32:01,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359668848] [2022-01-28 12:32:01,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 12:32:01,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-01-28 12:32:01,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:32:01,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-01-28 12:32:01,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-01-28 12:32:01,032 INFO L87 Difference]: Start difference. First operand 32679 states and 61587 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 12:33:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:33:17,711 INFO L93 Difference]: Finished difference Result 736738 states and 1412969 transitions. [2022-01-28 12:33:17,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 934 states. [2022-01-28 12:33:17,713 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-01-28 12:33:17,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:33:20,373 INFO L225 Difference]: With dead ends: 736738 [2022-01-28 12:33:20,373 INFO L226 Difference]: Without dead ends: 736725 [2022-01-28 12:33:20,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1812 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 938 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365080 ImplicationChecksByTransitivity, 30.0s TimeCoverageRelationStatistics Valid=3594, Invalid=879066, Unknown=0, NotChecked=0, Total=882660 [2022-01-28 12:33:20,424 INFO L933 BasicCegarLoop]: 13738 mSDtfsCounter, 15993 mSDsluCounter, 1126105 mSDsCounter, 0 mSdLazyCounter, 152771 mSolverCounterSat, 966 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15993 SdHoareTripleChecker+Valid, 1138221 SdHoareTripleChecker+Invalid, 153737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.9s SdHoareTripleChecker+Time, 966 IncrementalHoareTripleChecker+Valid, 152771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.4s IncrementalHoareTripleChecker+Time [2022-01-28 12:33:20,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15993 Valid, 1138221 Invalid, 153737 Unknown, 0 Unchecked, 0.9s Time], IncrementalHoareTripleChecker [966 Valid, 152771 Invalid, 0 Unknown, 0 Unchecked, 41.4s Time] Received shutdown request... [2022-01-28 12:33:20,967 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 [2022-01-28 12:33:20,969 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-28 12:33:21,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736725 states. [2022-01-28 12:33:21,244 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-28 12:33:21,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-28 12:33:21,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-01-28 12:33:21,449 WARN L594 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2022-01-28 12:33:21,452 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-28 12:33:21,455 INFO L732 BasicCegarLoop]: Path program histogram: [12, 1, 1, 1] [2022-01-28 12:33:21,456 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-28 12:33:21,456 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 12:33:21,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:33:21 BasicIcfg [2022-01-28 12:33:21,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 12:33:21,458 INFO L158 Benchmark]: Toolchain (without parser) took 677057.00ms. Allocated memory was 199.2MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 171.0MB in the beginning and 6.0GB in the end (delta: -5.8GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-01-28 12:33:21,458 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 12:33:21,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.37ms. Allocated memory is still 199.2MB. Free memory was 170.8MB in the beginning and 144.0MB in the end (delta: 26.8MB). Peak memory consumption was 29.8MB. Max. memory is 8.0GB. [2022-01-28 12:33:21,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.08ms. Allocated memory is still 199.2MB. Free memory was 144.0MB in the beginning and 141.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 12:33:21,458 INFO L158 Benchmark]: Boogie Preprocessor took 28.68ms. Allocated memory is still 199.2MB. Free memory was 141.6MB in the beginning and 140.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 12:33:21,458 INFO L158 Benchmark]: RCFGBuilder took 296.59ms. Allocated memory is still 199.2MB. Free memory was 140.1MB in the beginning and 127.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-28 12:33:21,459 INFO L158 Benchmark]: TraceAbstraction took 676182.42ms. Allocated memory was 199.2MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 126.9MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-01-28 12:33:21,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 493.37ms. Allocated memory is still 199.2MB. Free memory was 170.8MB in the beginning and 144.0MB in the end (delta: 26.8MB). Peak memory consumption was 29.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.08ms. Allocated memory is still 199.2MB. Free memory was 144.0MB in the beginning and 141.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.68ms. Allocated memory is still 199.2MB. Free memory was 141.6MB in the beginning and 140.3MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 296.59ms. Allocated memory is still 199.2MB. Free memory was 140.1MB in the beginning and 127.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 676182.42ms. Allocated memory was 199.2MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 126.9MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1343]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 676.1s, OverallIterations: 15, TraceHistogramMax: 20, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.4s, AutomataDifference: 631.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107196 SdHoareTripleChecker+Valid, 127.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107196 mSDsluCounter, 3444167 SdHoareTripleChecker+Invalid, 105.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3406553 mSDsCounter, 8061 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464204 IncrementalHoareTripleChecker+Invalid, 472265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8061 mSolverCounterUnsat, 42641 mSDtfsCounter, 464204 mSolverCounterSat, 3.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12815 GetRequests, 6843 SyntacticMatches, 20 SemanticMatches, 5952 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5229209 ImplicationChecksByTransitivity, 458.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32679occurred in iteration=14, InterpolantAutomatonStates: 5848, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 1446768 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 24.8s InterpolantComputationTime, 6208 NumberOfCodeBlocks, 6112 NumberOfCodeBlocksAsserted, 96 NumberOfCheckSat, 9136 ConstructedInterpolants, 0 QuantifiedInterpolants, 36331 SizeOfPredicates, 232 NumberOfNonLiveVariables, 7047 ConjunctsInSsa, 617 ConjunctsInUnsatCore, 37 InterpolantComputations, 4 PerfectInterpolantSequences, 5776/53930 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