/usr/bin/java -Xmx16000000000 -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-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-04 21:48:09,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-04 21:48:09,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-04 21:48:09,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-04 21:48:09,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-04 21:48:09,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-04 21:48:09,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-04 21:48:09,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-04 21:48:09,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-04 21:48:09,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-04 21:48:09,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-04 21:48:09,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-04 21:48:09,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-04 21:48:09,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-04 21:48:09,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-04 21:48:09,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-04 21:48:09,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-04 21:48:09,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-04 21:48:09,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-04 21:48:09,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-04 21:48:09,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-04 21:48:09,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-04 21:48:09,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-04 21:48:09,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-04 21:48:09,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-04 21:48:09,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-04 21:48:09,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-04 21:48:09,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-04 21:48:09,209 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 [2021-06-04 21:48:09,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-04 21:48:09,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-04 21:48:09,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-04 21:48:09,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-04 21:48:09,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-04 21:48:09,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-04 21:48:09,246 INFO L138 SettingsManager]: * Use SBE=true [2021-06-04 21:48:09,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-04 21:48:09,247 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-04 21:48:09,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-04 21:48:09,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-04 21:48:09,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-04 21:48:09,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-04 21:48:09,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-04 21:48:09,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-04 21:48:09,249 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-04 21:48:09,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-04 21:48:09,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-04 21:48:09,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-04 21:48:09,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-04 21:48:09,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-04 21:48:09,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-04 21:48:09,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-04 21:48:09,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-04 21:48:09,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-04 21:48:09,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-04 21:48:09,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-04 21:48:09,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-04 21:48:09,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-04 21:48:09,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-04 21:48:09,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-04 21:48:09,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-04 21:48:09,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-04 21:48:09,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-04 21:48:09,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-04 21:48:09,557 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-04 21:48:09,558 INFO L275 PluginConnector]: CDTParser initialized [2021-06-04 21:48:09,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-06-04 21:48:09,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa820d8b/ab390c952f914851a099407de018e0ac/FLAG2ca4a6139 [2021-06-04 21:48:10,084 INFO L306 CDTParser]: Found 1 translation units. [2021-06-04 21:48:10,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-06-04 21:48:10,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa820d8b/ab390c952f914851a099407de018e0ac/FLAG2ca4a6139 [2021-06-04 21:48:10,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa820d8b/ab390c952f914851a099407de018e0ac [2021-06-04 21:48:10,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-04 21:48:10,391 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-04 21:48:10,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-04 21:48:10,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-04 21:48:10,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-04 21:48:10,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d49a141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10, skipping insertion in model container [2021-06-04 21:48:10,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-04 21:48:10,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-04 21:48:10,614 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-04 21:48:10,761 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2021-06-04 21:48:10,769 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2021-06-04 21:48:10,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-04 21:48:10,785 INFO L203 MainTranslator]: Completed pre-run [2021-06-04 21:48:10,805 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-04 21:48:10,833 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2021-06-04 21:48:10,836 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2021-06-04 21:48:10,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-04 21:48:10,894 INFO L208 MainTranslator]: Completed translation [2021-06-04 21:48:10,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10 WrapperNode [2021-06-04 21:48:10,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-04 21:48:10,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-04 21:48:10,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-04 21:48:10,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-04 21:48:10,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-04 21:48:10,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-04 21:48:10,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-04 21:48:10,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-04 21:48:10,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (1/1) ... [2021-06-04 21:48:10,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-04 21:48:10,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-04 21:48:10,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-04 21:48:10,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-04 21:48:10,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (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 [2021-06-04 21:48:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-04 21:48:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-04 21:48:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-04 21:48:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-04 21:48:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-04 21:48:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-04 21:48:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-04 21:48:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-04 21:48:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-04 21:48:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-04 21:48:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-04 21:48:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-04 21:48:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-04 21:48:11,019 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-04 21:48:11,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-04 21:48:11,480 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-06-04 21:48:11,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 09:48:11 BoogieIcfgContainer [2021-06-04 21:48:11,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-04 21:48:11,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-04 21:48:11,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-04 21:48:11,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-04 21:48:11,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 09:48:10" (1/3) ... [2021-06-04 21:48:11,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b174ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 09:48:11, skipping insertion in model container [2021-06-04 21:48:11,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:48:10" (2/3) ... [2021-06-04 21:48:11,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b174ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 09:48:11, skipping insertion in model container [2021-06-04 21:48:11,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 09:48:11" (3/3) ... [2021-06-04 21:48:11,488 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-06-04 21:48:11,493 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-04 21:48:11,493 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-04 21:48:11,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-04 21:48:11,494 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-04 21:48:11,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,532 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,536 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,537 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,537 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,539 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,539 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,539 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,539 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,540 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,541 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,542 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,542 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,542 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,543 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,544 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,544 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,544 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,545 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,545 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,545 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,545 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,545 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,546 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,546 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,546 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,546 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,546 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,556 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,556 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,556 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,556 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,576 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,577 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,577 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:48:11,587 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-04 21:48:11,610 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-04 21:48:11,622 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-04 21:48:11,623 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-04 21:48:11,623 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-04 21:48:11,623 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-04 21:48:11,623 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-04 21:48:11,623 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-04 21:48:11,623 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-04 21:48:11,623 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-04 21:48:11,632 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 115 transitions, 252 flow [2021-06-04 21:48:11,778 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3267 states, 3263 states have (on average 3.2935948513637756) internal successors, (10747), 3266 states have internal predecessors, (10747), 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) [2021-06-04 21:48:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 3267 states, 3263 states have (on average 3.2935948513637756) internal successors, (10747), 3266 states have internal predecessors, (10747), 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) [2021-06-04 21:48:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-04 21:48:11,809 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:48:11,810 INFO L521 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] [2021-06-04 21:48:11,810 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:48:11,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:48:11,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1929720339, now seen corresponding path program 1 times [2021-06-04 21:48:11,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:48:11,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081361520] [2021-06-04 21:48:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:48:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:48:11,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:48:11,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:48:11,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081361520] [2021-06-04 21:48:11,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081361520] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:48:11,962 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:48:11,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-04 21:48:11,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199779450] [2021-06-04 21:48:11,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-04 21:48:11,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:48:11,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-04 21:48:11,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:48:11,990 INFO L87 Difference]: Start difference. First operand has 3267 states, 3263 states have (on average 3.2935948513637756) internal successors, (10747), 3266 states have internal predecessors, (10747), 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 15.5) internal successors, (31), 2 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) [2021-06-04 21:48:12,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:48:12,052 INFO L93 Difference]: Finished difference Result 3267 states and 9607 transitions. [2021-06-04 21:48:12,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-04 21:48:12,053 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 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 [2021-06-04 21:48:12,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:48:12,091 INFO L225 Difference]: With dead ends: 3267 [2021-06-04 21:48:12,092 INFO L226 Difference]: Without dead ends: 3020 [2021-06-04 21:48:12,093 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:48:12,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2021-06-04 21:48:12,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 3020. [2021-06-04 21:48:12,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 3017 states have (on average 2.9539277427908517) internal successors, (8912), 3019 states have internal predecessors, (8912), 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) [2021-06-04 21:48:12,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 8912 transitions. [2021-06-04 21:48:12,274 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 8912 transitions. Word has length 31 [2021-06-04 21:48:12,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:48:12,275 INFO L482 AbstractCegarLoop]: Abstraction has 3020 states and 8912 transitions. [2021-06-04 21:48:12,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 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) [2021-06-04 21:48:12,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 8912 transitions. [2021-06-04 21:48:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-04 21:48:12,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:48:12,281 INFO L521 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] [2021-06-04 21:48:12,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-04 21:48:12,282 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:48:12,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:48:12,285 INFO L82 PathProgramCache]: Analyzing trace with hash -2126204053, now seen corresponding path program 1 times [2021-06-04 21:48:12,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:48:12,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283788602] [2021-06-04 21:48:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:48:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:48:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:48:12,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:48:12,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283788602] [2021-06-04 21:48:12,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283788602] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:48:12,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:48:12,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-04 21:48:12,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827404851] [2021-06-04 21:48:12,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-04 21:48:12,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:48:12,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-04 21:48:12,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-04 21:48:12,385 INFO L87 Difference]: Start difference. First operand 3020 states and 8912 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) [2021-06-04 21:48:12,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:48:12,425 INFO L93 Difference]: Finished difference Result 3008 states and 8781 transitions. [2021-06-04 21:48:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-04 21:48:12,435 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 [2021-06-04 21:48:12,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:48:12,448 INFO L225 Difference]: With dead ends: 3008 [2021-06-04 21:48:12,449 INFO L226 Difference]: Without dead ends: 2450 [2021-06-04 21:48:12,450 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-04 21:48:12,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2021-06-04 21:48:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2357. [2021-06-04 21:48:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2354 states have (on average 2.9345794392523366) internal successors, (6908), 2356 states have internal predecessors, (6908), 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) [2021-06-04 21:48:12,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 6908 transitions. [2021-06-04 21:48:12,561 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 6908 transitions. Word has length 31 [2021-06-04 21:48:12,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:48:12,562 INFO L482 AbstractCegarLoop]: Abstraction has 2357 states and 6908 transitions. [2021-06-04 21:48:12,562 INFO L483 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) [2021-06-04 21:48:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 6908 transitions. [2021-06-04 21:48:12,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-04 21:48:12,565 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:48:12,565 INFO L521 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] [2021-06-04 21:48:12,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-04 21:48:12,566 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:48:12,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:48:12,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1906086302, now seen corresponding path program 1 times [2021-06-04 21:48:12,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:48:12,567 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378478246] [2021-06-04 21:48:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:48:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:48:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:48:12,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:48:12,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378478246] [2021-06-04 21:48:12,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378478246] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:48:12,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:48:12,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-04 21:48:12,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94867136] [2021-06-04 21:48:12,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-04 21:48:12,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:48:12,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-04 21:48:12,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-04 21:48:12,630 INFO L87 Difference]: Start difference. First operand 2357 states and 6908 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-06-04 21:48:12,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:48:12,657 INFO L93 Difference]: Finished difference Result 2228 states and 6484 transitions. [2021-06-04 21:48:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-04 21:48:12,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-06-04 21:48:12,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:48:12,665 INFO L225 Difference]: With dead ends: 2228 [2021-06-04 21:48:12,665 INFO L226 Difference]: Without dead ends: 1628 [2021-06-04 21:48:12,665 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-04 21:48:12,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2021-06-04 21:48:12,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1628. [2021-06-04 21:48:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1626 states have (on average 2.9145141451414514) internal successors, (4739), 1627 states have internal predecessors, (4739), 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) [2021-06-04 21:48:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 4739 transitions. [2021-06-04 21:48:12,704 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 4739 transitions. Word has length 37 [2021-06-04 21:48:12,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:48:12,705 INFO L482 AbstractCegarLoop]: Abstraction has 1628 states and 4739 transitions. [2021-06-04 21:48:12,705 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-06-04 21:48:12,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 4739 transitions. [2021-06-04 21:48:12,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-04 21:48:12,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:48:12,708 INFO L521 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] [2021-06-04 21:48:12,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-04 21:48:12,709 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:48:12,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:48:12,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1950418830, now seen corresponding path program 1 times [2021-06-04 21:48:12,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:48:12,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680771091] [2021-06-04 21:48:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:48:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:48:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:48:12,755 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:48:12,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680771091] [2021-06-04 21:48:12,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680771091] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:48:12,755 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:48:12,755 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-04 21:48:12,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925223987] [2021-06-04 21:48:12,756 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-04 21:48:12,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:48:12,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-04 21:48:12,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:48:12,757 INFO L87 Difference]: Start difference. First operand 1628 states and 4739 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-06-04 21:48:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:48:12,846 INFO L93 Difference]: Finished difference Result 1892 states and 5472 transitions. [2021-06-04 21:48:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-04 21:48:12,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2021-06-04 21:48:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:48:12,854 INFO L225 Difference]: With dead ends: 1892 [2021-06-04 21:48:12,854 INFO L226 Difference]: Without dead ends: 1432 [2021-06-04 21:48:12,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-04 21:48:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2021-06-04 21:48:12,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1316. [2021-06-04 21:48:12,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1314 states have (on average 2.840943683409437) internal successors, (3733), 1315 states have internal predecessors, (3733), 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) [2021-06-04 21:48:12,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 3733 transitions. [2021-06-04 21:48:12,920 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 3733 transitions. Word has length 48 [2021-06-04 21:48:12,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:48:12,920 INFO L482 AbstractCegarLoop]: Abstraction has 1316 states and 3733 transitions. [2021-06-04 21:48:12,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-06-04 21:48:12,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 3733 transitions. [2021-06-04 21:48:12,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-04 21:48:12,923 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:48:12,923 INFO L521 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] [2021-06-04 21:48:12,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-04 21:48:12,924 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:48:12,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:48:12,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1068051064, now seen corresponding path program 1 times [2021-06-04 21:48:12,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:48:12,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940810103] [2021-06-04 21:48:12,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:48:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:48:12,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:48:12,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:48:12,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940810103] [2021-06-04 21:48:12,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940810103] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:48:12,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:48:12,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-04 21:48:12,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021443387] [2021-06-04 21:48:12,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-04 21:48:12,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:48:12,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-04 21:48:12,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:48:12,971 INFO L87 Difference]: Start difference. First operand 1316 states and 3733 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-06-04 21:48:13,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:48:13,083 INFO L93 Difference]: Finished difference Result 1724 states and 4826 transitions. [2021-06-04 21:48:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-04 21:48:13,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2021-06-04 21:48:13,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:48:13,091 INFO L225 Difference]: With dead ends: 1724 [2021-06-04 21:48:13,091 INFO L226 Difference]: Without dead ends: 1612 [2021-06-04 21:48:13,095 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-04 21:48:13,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2021-06-04 21:48:13,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1404. [2021-06-04 21:48:13,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1402 states have (on average 2.7924393723252496) internal successors, (3915), 1403 states have internal predecessors, (3915), 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) [2021-06-04 21:48:13,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 3915 transitions. [2021-06-04 21:48:13,134 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 3915 transitions. Word has length 48 [2021-06-04 21:48:13,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:48:13,135 INFO L482 AbstractCegarLoop]: Abstraction has 1404 states and 3915 transitions. [2021-06-04 21:48:13,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-06-04 21:48:13,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 3915 transitions. [2021-06-04 21:48:13,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-04 21:48:13,138 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:48:13,138 INFO L521 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] [2021-06-04 21:48:13,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-04 21:48:13,138 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:48:13,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:48:13,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1786413486, now seen corresponding path program 2 times [2021-06-04 21:48:13,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:48:13,139 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722094600] [2021-06-04 21:48:13,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:48:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:48:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:48:13,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:48:13,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722094600] [2021-06-04 21:48:13,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722094600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:48:13,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:48:13,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-04 21:48:13,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081944038] [2021-06-04 21:48:13,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-04 21:48:13,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:48:13,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-04 21:48:13,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:48:13,206 INFO L87 Difference]: Start difference. First operand 1404 states and 3915 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-06-04 21:48:13,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:48:13,295 INFO L93 Difference]: Finished difference Result 1989 states and 5478 transitions. [2021-06-04 21:48:13,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-04 21:48:13,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2021-06-04 21:48:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:48:13,304 INFO L225 Difference]: With dead ends: 1989 [2021-06-04 21:48:13,304 INFO L226 Difference]: Without dead ends: 1989 [2021-06-04 21:48:13,304 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-04 21:48:13,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2021-06-04 21:48:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1576. [2021-06-04 21:48:13,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1574 states have (on average 2.8030495552731893) internal successors, (4412), 1575 states have internal predecessors, (4412), 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) [2021-06-04 21:48:13,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 4412 transitions. [2021-06-04 21:48:13,345 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 4412 transitions. Word has length 48 [2021-06-04 21:48:13,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:48:13,345 INFO L482 AbstractCegarLoop]: Abstraction has 1576 states and 4412 transitions. [2021-06-04 21:48:13,345 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-06-04 21:48:13,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 4412 transitions. [2021-06-04 21:48:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-04 21:48:13,348 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:48:13,348 INFO L521 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] [2021-06-04 21:48:13,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-04 21:48:13,349 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:48:13,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:48:13,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1180464832, now seen corresponding path program 3 times [2021-06-04 21:48:13,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:48:13,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069582539] [2021-06-04 21:48:13,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:48:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:48:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:48:13,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:48:13,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069582539] [2021-06-04 21:48:13,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069582539] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:48:13,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:48:13,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-04 21:48:13,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144398998] [2021-06-04 21:48:13,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-04 21:48:13,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:48:13,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-04 21:48:13,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:48:13,391 INFO L87 Difference]: Start difference. First operand 1576 states and 4412 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-06-04 21:48:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:48:13,485 INFO L93 Difference]: Finished difference Result 1374 states and 3884 transitions. [2021-06-04 21:48:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-04 21:48:13,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2021-06-04 21:48:13,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:48:13,486 INFO L225 Difference]: With dead ends: 1374 [2021-06-04 21:48:13,486 INFO L226 Difference]: Without dead ends: 0 [2021-06-04 21:48:13,486 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-04 21:48:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-04 21:48:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-04 21:48:13,487 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) [2021-06-04 21:48:13,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-04 21:48:13,487 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-06-04 21:48:13,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:48:13,487 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-04 21:48:13,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-06-04 21:48:13,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-04 21:48:13,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-04 21:48:13,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-04 21:48:13,489 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-04 21:48:13,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 09:48:13 BasicIcfg [2021-06-04 21:48:13,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-04 21:48:13,492 INFO L168 Benchmark]: Toolchain (without parser) took 3101.13 ms. Allocated memory was 360.7 MB in the beginning and 457.2 MB in the end (delta: 96.5 MB). Free memory was 322.8 MB in the beginning and 313.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 103.6 MB. Max. memory is 16.0 GB. [2021-06-04 21:48:13,492 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 360.7 MB. Free memory was 341.0 MB in the beginning and 340.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-04 21:48:13,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.99 ms. Allocated memory is still 360.7 MB. Free memory was 322.6 MB in the beginning and 322.2 MB in the end (delta: 358.4 kB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. [2021-06-04 21:48:13,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.77 ms. Allocated memory is still 360.7 MB. Free memory was 322.2 MB in the beginning and 320.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-04 21:48:13,493 INFO L168 Benchmark]: Boogie Preprocessor took 22.37 ms. Allocated memory is still 360.7 MB. Free memory was 320.1 MB in the beginning and 319.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-04 21:48:13,493 INFO L168 Benchmark]: RCFGBuilder took 532.27 ms. Allocated memory is still 360.7 MB. Free memory was 319.1 MB in the beginning and 290.8 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-04 21:48:13,494 INFO L168 Benchmark]: TraceAbstraction took 2007.27 ms. Allocated memory was 360.7 MB in the beginning and 457.2 MB in the end (delta: 96.5 MB). Free memory was 290.8 MB in the beginning and 313.9 MB in the end (delta: -23.1 MB). Peak memory consumption was 75.5 MB. Max. memory is 16.0 GB. [2021-06-04 21:48:13,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 360.7 MB. Free memory was 341.0 MB in the beginning and 340.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 502.99 ms. Allocated memory is still 360.7 MB. Free memory was 322.6 MB in the beginning and 322.2 MB in the end (delta: 358.4 kB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 30.77 ms. Allocated memory is still 360.7 MB. Free memory was 322.2 MB in the beginning and 320.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.37 ms. Allocated memory is still 360.7 MB. Free memory was 320.1 MB in the beginning and 319.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 532.27 ms. Allocated memory is still 360.7 MB. Free memory was 319.1 MB in the beginning and 290.8 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2007.27 ms. Allocated memory was 360.7 MB in the beginning and 457.2 MB in the end (delta: 96.5 MB). Free memory was 290.8 MB in the beginning and 313.9 MB in the end (delta: -23.1 MB). Peak memory consumption was 75.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 745]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 150 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1867.0ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 50.6ms, AutomataDifference: 642.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 155.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 842 SDtfs, 453 SDslu, 737 SDs, 0 SdLazy, 221 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 231.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3267occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 465.1ms AutomataMinimizationTime, 7 MinimizatonAttempts, 830 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.7ms SsaConstructionTime, 102.1ms SatisfiabilityAnalysisTime, 257.1ms InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...