/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 15:49:37,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 15:49:37,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 15:49:37,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 15:49:37,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 15:49:37,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 15:49:37,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 15:49:37,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 15:49:37,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 15:49:37,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 15:49:37,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 15:49:37,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 15:49:37,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 15:49:37,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 15:49:37,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 15:49:37,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 15:49:37,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 15:49:37,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 15:49:37,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 15:49:37,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 15:49:37,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 15:49:37,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 15:49:37,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 15:49:37,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 15:49:37,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 15:49:37,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 15:49:37,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 15:49:37,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 15:49:37,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 15:49:37,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 15:49:37,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 15:49:37,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 15:49:37,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 15:49:37,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 15:49:37,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 15:49:37,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 15:49:37,297 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 [2020-11-11 15:49:37,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 15:49:37,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 15:49:37,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 15:49:37,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 15:49:37,358 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 15:49:37,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 15:49:37,358 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 15:49:37,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 15:49:37,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 15:49:37,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 15:49:37,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 15:49:37,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 15:49:37,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 15:49:37,361 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 15:49:37,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 15:49:37,362 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 15:49:37,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 15:49:37,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 15:49:37,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 15:49:37,363 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 15:49:37,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 15:49:37,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 15:49:37,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 15:49:37,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 15:49:37,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 15:49:37,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 15:49:37,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 15:49:37,365 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 15:49:37,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 15:49:37,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 15:49:37,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 15:49:37,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 15:49:37,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 15:49:37,852 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 15:49:37,852 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 15:49:37,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-11-11 15:49:37,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e641f139/c09205b83cb44b45bab8f2767e7f956b/FLAGc5341cd52 [2020-11-11 15:49:38,749 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 15:49:38,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-11-11 15:49:38,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e641f139/c09205b83cb44b45bab8f2767e7f956b/FLAGc5341cd52 [2020-11-11 15:49:38,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e641f139/c09205b83cb44b45bab8f2767e7f956b [2020-11-11 15:49:38,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 15:49:38,994 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 15:49:38,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 15:49:38,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 15:49:39,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 15:49:39,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:49:38" (1/1) ... [2020-11-11 15:49:39,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac5c97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39, skipping insertion in model container [2020-11-11 15:49:39,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:49:38" (1/1) ... [2020-11-11 15:49:39,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 15:49:39,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 15:49:39,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 15:49:39,511 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 15:49:39,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 15:49:39,664 INFO L208 MainTranslator]: Completed translation [2020-11-11 15:49:39,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39 WrapperNode [2020-11-11 15:49:39,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 15:49:39,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 15:49:39,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 15:49:39,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 15:49:39,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... [2020-11-11 15:49:39,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... [2020-11-11 15:49:39,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 15:49:39,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 15:49:39,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 15:49:39,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 15:49:39,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... [2020-11-11 15:49:39,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... [2020-11-11 15:49:39,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... [2020-11-11 15:49:39,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... [2020-11-11 15:49:39,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... [2020-11-11 15:49:39,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... [2020-11-11 15:49:39,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... [2020-11-11 15:49:39,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 15:49:39,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 15:49:39,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 15:49:39,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 15:49:39,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 15:49:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-11 15:49:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-11 15:49:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-11 15:49:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 15:49:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 15:49:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 15:49:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 15:49:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 15:49:39,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 15:49:39,866 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 15:49:40,946 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 15:49:40,946 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 15:49:40,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:49:40 BoogieIcfgContainer [2020-11-11 15:49:40,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 15:49:40,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 15:49:40,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 15:49:40,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 15:49:40,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 03:49:38" (1/3) ... [2020-11-11 15:49:40,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d4d79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:49:40, skipping insertion in model container [2020-11-11 15:49:40,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:49:39" (2/3) ... [2020-11-11 15:49:40,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d4d79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:49:40, skipping insertion in model container [2020-11-11 15:49:40,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:49:40" (3/3) ... [2020-11-11 15:49:40,957 INFO L111 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-11-11 15:49:40,973 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 15:49:40,974 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 15:49:40,977 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-11 15:49:40,978 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 15:49:41,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,018 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,019 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,019 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,021 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,021 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,021 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,021 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,023 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,025 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,025 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,025 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,026 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,027 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,027 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,027 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,027 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,027 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,028 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,028 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,028 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,028 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,028 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:49:41,034 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 15:49:41,047 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 15:49:41,071 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 15:49:41,072 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 15:49:41,072 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 15:49:41,072 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 15:49:41,072 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 15:49:41,072 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 15:49:41,072 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 15:49:41,073 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 15:49:41,085 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 68 transitions, 141 flow [2020-11-11 15:49:41,126 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 494 states, 490 states have (on average 2.157142857142857) internal successors, (1057), 493 states have internal predecessors, (1057), 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) [2020-11-11 15:49:41,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 494 states, 490 states have (on average 2.157142857142857) internal successors, (1057), 493 states have internal predecessors, (1057), 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) [2020-11-11 15:49:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-11 15:49:41,140 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:49:41,141 INFO L494 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] [2020-11-11 15:49:41,142 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:49:41,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:49:41,149 INFO L82 PathProgramCache]: Analyzing trace with hash 490535902, now seen corresponding path program 1 times [2020-11-11 15:49:41,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:49:41,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117768997] [2020-11-11 15:49:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:49:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:49:41,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 15:49:41,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117768997] [2020-11-11 15:49:41,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:49:41,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 15:49:41,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762143941] [2020-11-11 15:49:41,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 15:49:41,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:49:41,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 15:49:41,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 15:49:41,480 INFO L87 Difference]: Start difference. First operand has 494 states, 490 states have (on average 2.157142857142857) internal successors, (1057), 493 states have internal predecessors, (1057), 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 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2020-11-11 15:49:41,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:49:41,529 INFO L93 Difference]: Finished difference Result 410 states and 778 transitions. [2020-11-11 15:49:41,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 15:49:41,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2020-11-11 15:49:41,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:49:41,547 INFO L225 Difference]: With dead ends: 410 [2020-11-11 15:49:41,547 INFO L226 Difference]: Without dead ends: 370 [2020-11-11 15:49:41,549 INFO L749 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 [2020-11-11 15:49:41,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-11-11 15:49:41,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-11-11 15:49:41,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 367 states have (on average 1.891008174386921) internal successors, (694), 369 states have internal predecessors, (694), 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) [2020-11-11 15:49:41,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 694 transitions. [2020-11-11 15:49:41,636 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 694 transitions. Word has length 27 [2020-11-11 15:49:41,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:49:41,637 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 694 transitions. [2020-11-11 15:49:41,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2020-11-11 15:49:41,640 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 694 transitions. [2020-11-11 15:49:41,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-11 15:49:41,645 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:49:41,645 INFO L494 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] [2020-11-11 15:49:41,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 15:49:41,646 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:49:41,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:49:41,647 INFO L82 PathProgramCache]: Analyzing trace with hash -741714822, now seen corresponding path program 1 times [2020-11-11 15:49:41,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:49:41,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557673510] [2020-11-11 15:49:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:49:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:49:41,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 15:49:41,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557673510] [2020-11-11 15:49:41,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:49:41,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 15:49:41,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199204099] [2020-11-11 15:49:41,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 15:49:41,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:49:41,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 15:49:41,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 15:49:41,749 INFO L87 Difference]: Start difference. First operand 370 states and 694 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2020-11-11 15:49:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:49:41,780 INFO L93 Difference]: Finished difference Result 373 states and 675 transitions. [2020-11-11 15:49:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 15:49:41,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2020-11-11 15:49:41,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:49:41,784 INFO L225 Difference]: With dead ends: 373 [2020-11-11 15:49:41,785 INFO L226 Difference]: Without dead ends: 283 [2020-11-11 15:49:41,785 INFO L749 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 [2020-11-11 15:49:41,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-11-11 15:49:41,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 263. [2020-11-11 15:49:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 260 states have (on average 1.7923076923076924) internal successors, (466), 262 states have internal predecessors, (466), 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) [2020-11-11 15:49:41,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 466 transitions. [2020-11-11 15:49:41,825 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 466 transitions. Word has length 31 [2020-11-11 15:49:41,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:49:41,825 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 466 transitions. [2020-11-11 15:49:41,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2020-11-11 15:49:41,826 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 466 transitions. [2020-11-11 15:49:41,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-11 15:49:41,830 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:49:41,830 INFO L494 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] [2020-11-11 15:49:41,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 15:49:41,831 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:49:41,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:49:41,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1208402141, now seen corresponding path program 1 times [2020-11-11 15:49:41,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:49:41,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303654815] [2020-11-11 15:49:41,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:49:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:49:41,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 15:49:41,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303654815] [2020-11-11 15:49:41,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:49:41,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 15:49:41,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605140472] [2020-11-11 15:49:41,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 15:49:41,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:49:41,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 15:49:41,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 15:49:41,968 INFO L87 Difference]: Start difference. First operand 263 states and 466 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2020-11-11 15:49:42,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:49:42,008 INFO L93 Difference]: Finished difference Result 215 states and 364 transitions. [2020-11-11 15:49:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 15:49:42,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2020-11-11 15:49:42,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:49:42,011 INFO L225 Difference]: With dead ends: 215 [2020-11-11 15:49:42,012 INFO L226 Difference]: Without dead ends: 179 [2020-11-11 15:49:42,012 INFO L749 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 [2020-11-11 15:49:42,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-11-11 15:49:42,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-11-11 15:49:42,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 177 states have (on average 1.6779661016949152) internal successors, (297), 178 states have internal predecessors, (297), 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) [2020-11-11 15:49:42,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 297 transitions. [2020-11-11 15:49:42,040 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 297 transitions. Word has length 31 [2020-11-11 15:49:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:49:42,040 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 297 transitions. [2020-11-11 15:49:42,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2020-11-11 15:49:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 297 transitions. [2020-11-11 15:49:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-11 15:49:42,045 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:49:42,045 INFO L494 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] [2020-11-11 15:49:42,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 15:49:42,046 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:49:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:49:42,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1902499118, now seen corresponding path program 1 times [2020-11-11 15:49:42,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:49:42,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212530879] [2020-11-11 15:49:42,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:49:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:49:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 15:49:42,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212530879] [2020-11-11 15:49:42,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:49:42,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 15:49:42,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341815311] [2020-11-11 15:49:42,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 15:49:42,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:49:42,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 15:49:42,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 15:49:42,192 INFO L87 Difference]: Start difference. First operand 179 states and 297 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2020-11-11 15:49:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:49:42,268 INFO L93 Difference]: Finished difference Result 173 states and 282 transitions. [2020-11-11 15:49:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 15:49:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 39 [2020-11-11 15:49:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:49:42,271 INFO L225 Difference]: With dead ends: 173 [2020-11-11 15:49:42,271 INFO L226 Difference]: Without dead ends: 161 [2020-11-11 15:49:42,272 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 15:49:42,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-11-11 15:49:42,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-11-11 15:49:42,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 159 states have (on average 1.6415094339622642) internal successors, (261), 160 states have internal predecessors, (261), 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) [2020-11-11 15:49:42,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 261 transitions. [2020-11-11 15:49:42,280 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 261 transitions. Word has length 39 [2020-11-11 15:49:42,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:49:42,280 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 261 transitions. [2020-11-11 15:49:42,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2020-11-11 15:49:42,281 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 261 transitions. [2020-11-11 15:49:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-11 15:49:42,282 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:49:42,283 INFO L494 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] [2020-11-11 15:49:42,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 15:49:42,283 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:49:42,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:49:42,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1429654800, now seen corresponding path program 1 times [2020-11-11 15:49:42,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:49:42,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473238497] [2020-11-11 15:49:42,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:49:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:49:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 15:49:42,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473238497] [2020-11-11 15:49:42,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:49:42,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 15:49:42,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089523963] [2020-11-11 15:49:42,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 15:49:42,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:49:42,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 15:49:42,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 15:49:42,340 INFO L87 Difference]: Start difference. First operand 161 states and 261 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2020-11-11 15:49:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:49:42,345 INFO L93 Difference]: Finished difference Result 76 states and 117 transitions. [2020-11-11 15:49:42,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 15:49:42,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2020-11-11 15:49:42,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:49:42,346 INFO L225 Difference]: With dead ends: 76 [2020-11-11 15:49:42,347 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 15:49:42,347 INFO L749 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 [2020-11-11 15:49:42,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 15:49:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 15:49:42,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 15:49:42,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 15:49:42,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-11-11 15:49:42,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:49:42,349 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 15:49:42,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2020-11-11 15:49:42,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 15:49:42,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 15:49:42,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 15:49:42,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 03:49:42 BasicIcfg [2020-11-11 15:49:42,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 15:49:42,358 INFO L168 Benchmark]: Toolchain (without parser) took 3368.96 ms. Allocated memory is still 312.5 MB. Free memory was 287.6 MB in the beginning and 144.8 MB in the end (delta: 142.8 MB). Peak memory consumption was 143.6 MB. Max. memory is 16.0 GB. [2020-11-11 15:49:42,358 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 312.5 MB. Free memory is still 282.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 15:49:42,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.66 ms. Allocated memory is still 312.5 MB. Free memory was 287.1 MB in the beginning and 257.9 MB in the end (delta: 29.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2020-11-11 15:49:42,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.86 ms. Allocated memory is still 312.5 MB. Free memory was 257.9 MB in the beginning and 255.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 15:49:42,361 INFO L168 Benchmark]: Boogie Preprocessor took 35.48 ms. Allocated memory is still 312.5 MB. Free memory was 255.8 MB in the beginning and 254.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 15:49:42,362 INFO L168 Benchmark]: RCFGBuilder took 1191.22 ms. Allocated memory is still 312.5 MB. Free memory was 254.2 MB in the beginning and 229.7 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.0 GB. [2020-11-11 15:49:42,363 INFO L168 Benchmark]: TraceAbstraction took 1404.90 ms. Allocated memory is still 312.5 MB. Free memory was 229.7 MB in the beginning and 144.8 MB in the end (delta: 84.9 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.0 GB. [2020-11-11 15:49:42,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 312.5 MB. Free memory is still 282.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 665.66 ms. Allocated memory is still 312.5 MB. Free memory was 287.1 MB in the beginning and 257.9 MB in the end (delta: 29.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.86 ms. Allocated memory is still 312.5 MB. Free memory was 257.9 MB in the beginning and 255.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 35.48 ms. Allocated memory is still 312.5 MB. Free memory was 255.8 MB in the beginning and 254.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1191.22 ms. Allocated memory is still 312.5 MB. Free memory was 254.2 MB in the beginning and 229.7 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1404.90 ms. Allocated memory is still 312.5 MB. Free memory was 229.7 MB in the beginning and 144.8 MB in the end (delta: 84.9 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 292 SDtfs, 163 SDslu, 197 SDs, 0 SdLazy, 38 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=494occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6944 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...