/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/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-04 21:45:26,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-04 21:45:26,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-04 21:45:26,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-04 21:45:26,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-04 21:45:26,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-04 21:45:26,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-04 21:45:26,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-04 21:45:26,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-04 21:45:26,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-04 21:45:26,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-04 21:45:26,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-04 21:45:26,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-04 21:45:26,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-04 21:45:26,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-04 21:45:26,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-04 21:45:26,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-04 21:45:26,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-04 21:45:26,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-04 21:45:26,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-04 21:45:26,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-04 21:45:26,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-04 21:45:26,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-04 21:45:26,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-04 21:45:26,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-04 21:45:26,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-04 21:45:26,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-04 21:45:26,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-04 21:45:26,905 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 21:45:26,932 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-04 21:45:26,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-04 21:45:26,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-04 21:45:26,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-04 21:45:26,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-04 21:45:26,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-04 21:45:26,934 INFO L138 SettingsManager]: * Use SBE=true [2021-06-04 21:45:26,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-04 21:45:26,935 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-04 21:45:26,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-04 21:45:26,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-04 21:45:26,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-04 21:45:26,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-04 21:45:26,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-04 21:45:26,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-04 21:45:26,936 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-04 21:45:26,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-04 21:45:26,936 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-04 21:45:26,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-04 21:45:26,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-04 21:45:26,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-04 21:45:26,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-04 21:45:26,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-04 21:45:26,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-04 21:45:26,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-04 21:45:26,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-04 21:45:26,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-04 21:45:26,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-04 21:45:26,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-04 21:45:26,938 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-04 21:45:26,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-04 21:45:26,938 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-04 21:45:27,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-04 21:45:27,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-04 21:45:27,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-04 21:45:27,284 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-04 21:45:27,286 INFO L275 PluginConnector]: CDTParser initialized [2021-06-04 21:45:27,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2021-06-04 21:45:27,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2456b0d9/e9a1ab095df24c0891d0f6a04922cccb/FLAGc05f2e4aa [2021-06-04 21:45:27,978 INFO L306 CDTParser]: Found 1 translation units. [2021-06-04 21:45:27,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2021-06-04 21:45:27,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2456b0d9/e9a1ab095df24c0891d0f6a04922cccb/FLAGc05f2e4aa [2021-06-04 21:45:28,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2456b0d9/e9a1ab095df24c0891d0f6a04922cccb [2021-06-04 21:45:28,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-04 21:45:28,371 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-04 21:45:28,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-04 21:45:28,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-04 21:45:28,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-04 21:45:28,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:28,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61fb83c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28, skipping insertion in model container [2021-06-04 21:45:28,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:28,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-04 21:45:28,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-04 21:45:28,660 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-04 21:45:28,800 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/peterson.i[30997,31010] [2021-06-04 21:45:28,806 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/peterson.i[31682,31695] [2021-06-04 21:45:28,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-04 21:45:28,818 INFO L203 MainTranslator]: Completed pre-run [2021-06-04 21:45:28,836 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-04 21:45:28,856 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/peterson.i[30997,31010] [2021-06-04 21:45:28,860 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/peterson.i[31682,31695] [2021-06-04 21:45:28,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-04 21:45:28,935 INFO L208 MainTranslator]: Completed translation [2021-06-04 21:45:28,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28 WrapperNode [2021-06-04 21:45:28,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-04 21:45:28,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-04 21:45:28,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-04 21:45:28,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-04 21:45:28,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:28,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:28,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-04 21:45:28,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-04 21:45:28,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-04 21:45:28,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-04 21:45:28,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:28,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:29,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:29,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:29,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:29,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:29,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (1/1) ... [2021-06-04 21:45:29,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-04 21:45:29,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-04 21:45:29,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-04 21:45:29,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-04 21:45:29,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (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 21:45:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-04 21:45:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-04 21:45:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-04 21:45:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-04 21:45:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-04 21:45:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-04 21:45:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-04 21:45:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-04 21:45:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-04 21:45:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-04 21:45:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-04 21:45:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-04 21:45:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-04 21:45:29,090 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 21:45:29,392 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-04 21:45:29,392 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-04 21:45:29,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 09:45:29 BoogieIcfgContainer [2021-06-04 21:45:29,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-04 21:45:29,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-04 21:45:29,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-04 21:45:29,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-04 21:45:29,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 09:45:28" (1/3) ... [2021-06-04 21:45:29,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92416aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 09:45:29, skipping insertion in model container [2021-06-04 21:45:29,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:45:28" (2/3) ... [2021-06-04 21:45:29,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92416aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 09:45:29, skipping insertion in model container [2021-06-04 21:45:29,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 09:45:29" (3/3) ... [2021-06-04 21:45:29,400 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2021-06-04 21:45:29,409 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-04 21:45:29,409 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-04 21:45:29,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-04 21:45:29,410 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-04 21:45:29,444 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,445 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,445 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,445 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,445 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,445 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,446 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,446 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,447 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,447 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,447 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,447 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,448 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,448 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,448 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,448 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,448 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,450 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,450 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,450 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,450 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,450 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,450 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,451 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,451 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,451 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,451 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,452 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,452 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,452 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,452 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,453 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,453 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,453 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,453 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,460 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,466 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,466 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:45:29,477 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-04 21:45:29,495 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-04 21:45:29,509 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-04 21:45:29,509 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-04 21:45:29,509 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-04 21:45:29,510 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-04 21:45:29,510 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-04 21:45:29,510 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-04 21:45:29,510 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-04 21:45:29,510 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-04 21:45:29,518 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 80 transitions, 182 flow [2021-06-04 21:45:29,589 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 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 21:45:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 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 21:45:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-06-04 21:45:29,601 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:45:29,601 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] [2021-06-04 21:45:29,601 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 21:45:29,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:45:29,605 INFO L82 PathProgramCache]: Analyzing trace with hash -11332315, now seen corresponding path program 1 times [2021-06-04 21:45:29,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:45:29,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21528880] [2021-06-04 21:45:29,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:45:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:45:29,742 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 21:45:29,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:45:29,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21528880] [2021-06-04 21:45:29,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21528880] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:45:29,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:45:29,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-04 21:45:29,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729898656] [2021-06-04 21:45:29,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-04 21:45:29,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:45:29,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-04 21:45:29,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:45:29,762 INFO L87 Difference]: Start difference. First operand has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 21:45:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:45:29,795 INFO L93 Difference]: Finished difference Result 1244 states and 3229 transitions. [2021-06-04 21:45:29,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-04 21:45:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2021-06-04 21:45:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:45:29,822 INFO L225 Difference]: With dead ends: 1244 [2021-06-04 21:45:29,822 INFO L226 Difference]: Without dead ends: 1147 [2021-06-04 21:45:29,823 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 21:45:29,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-06-04 21:45:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2021-06-04 21:45:29,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1144 states have (on average 2.618006993006993) internal successors, (2995), 1146 states have internal predecessors, (2995), 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 21:45:29,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 2995 transitions. [2021-06-04 21:45:29,920 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 2995 transitions. Word has length 28 [2021-06-04 21:45:29,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:45:29,920 INFO L482 AbstractCegarLoop]: Abstraction has 1147 states and 2995 transitions. [2021-06-04 21:45:29,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 21:45:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 2995 transitions. [2021-06-04 21:45:29,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-06-04 21:45:29,921 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:45:29,922 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] [2021-06-04 21:45:29,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-04 21:45:29,922 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 21:45:29,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:45:29,923 INFO L82 PathProgramCache]: Analyzing trace with hash -11302524, now seen corresponding path program 1 times [2021-06-04 21:45:29,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:45:29,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458497205] [2021-06-04 21:45:29,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:45:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:45:29,996 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 21:45:29,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:45:29,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458497205] [2021-06-04 21:45:29,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458497205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:45:29,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:45:29,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-04 21:45:29,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374352926] [2021-06-04 21:45:29,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-04 21:45:29,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:45:29,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-04 21:45:29,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-04 21:45:29,999 INFO L87 Difference]: Start difference. First operand 1147 states and 2995 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 21:45:30,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:45:30,022 INFO L93 Difference]: Finished difference Result 1151 states and 2940 transitions. [2021-06-04 21:45:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-04 21:45:30,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2021-06-04 21:45:30,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:45:30,027 INFO L225 Difference]: With dead ends: 1151 [2021-06-04 21:45:30,028 INFO L226 Difference]: Without dead ends: 961 [2021-06-04 21:45:30,028 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-04 21:45:30,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2021-06-04 21:45:30,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 904. [2021-06-04 21:45:30,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 901 states have (on average 2.5804661487236404) internal successors, (2325), 903 states have internal predecessors, (2325), 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 21:45:30,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 2325 transitions. [2021-06-04 21:45:30,056 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 2325 transitions. Word has length 28 [2021-06-04 21:45:30,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:45:30,057 INFO L482 AbstractCegarLoop]: Abstraction has 904 states and 2325 transitions. [2021-06-04 21:45:30,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 21:45:30,057 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 2325 transitions. [2021-06-04 21:45:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-04 21:45:30,062 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:45:30,062 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] [2021-06-04 21:45:30,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-04 21:45:30,063 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 21:45:30,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:45:30,063 INFO L82 PathProgramCache]: Analyzing trace with hash -679109134, now seen corresponding path program 1 times [2021-06-04 21:45:30,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:45:30,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501910302] [2021-06-04 21:45:30,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:45:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:45:30,142 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 21:45:30,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:45:30,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501910302] [2021-06-04 21:45:30,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501910302] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:45:30,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:45:30,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-04 21:45:30,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194863173] [2021-06-04 21:45:30,144 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-04 21:45:30,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:45:30,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-04 21:45:30,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-04 21:45:30,145 INFO L87 Difference]: Start difference. First operand 904 states and 2325 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 21:45:30,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:45:30,173 INFO L93 Difference]: Finished difference Result 827 states and 2076 transitions. [2021-06-04 21:45:30,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-04 21:45:30,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-06-04 21:45:30,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:45:30,178 INFO L225 Difference]: With dead ends: 827 [2021-06-04 21:45:30,178 INFO L226 Difference]: Without dead ends: 613 [2021-06-04 21:45:30,180 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-04 21:45:30,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-06-04 21:45:30,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-06-04 21:45:30,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 611 states have (on average 2.507364975450082) internal successors, (1532), 612 states have internal predecessors, (1532), 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 21:45:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 1532 transitions. [2021-06-04 21:45:30,198 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 1532 transitions. Word has length 34 [2021-06-04 21:45:30,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:45:30,199 INFO L482 AbstractCegarLoop]: Abstraction has 613 states and 1532 transitions. [2021-06-04 21:45:30,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 21:45:30,199 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 1532 transitions. [2021-06-04 21:45:30,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:45:30,203 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:45:30,203 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] [2021-06-04 21:45:30,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-04 21:45:30,203 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 21:45:30,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:45:30,204 INFO L82 PathProgramCache]: Analyzing trace with hash 960636576, now seen corresponding path program 1 times [2021-06-04 21:45:30,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:45:30,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984635317] [2021-06-04 21:45:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:45:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:45:30,299 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 21:45:30,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:45:30,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984635317] [2021-06-04 21:45:30,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984635317] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:45:30,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:45:30,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-04 21:45:30,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675507928] [2021-06-04 21:45:30,300 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-04 21:45:30,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:45:30,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-04 21:45:30,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-04 21:45:30,302 INFO L87 Difference]: Start difference. First operand 613 states and 1532 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 21:45:30,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:45:30,403 INFO L93 Difference]: Finished difference Result 833 states and 2137 transitions. [2021-06-04 21:45:30,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-04 21:45:30,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2021-06-04 21:45:30,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:45:30,406 INFO L225 Difference]: With dead ends: 833 [2021-06-04 21:45:30,406 INFO L226 Difference]: Without dead ends: 567 [2021-06-04 21:45:30,406 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 45.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-04 21:45:30,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-06-04 21:45:30,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 535. [2021-06-04 21:45:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 533 states have (on average 2.49718574108818) internal successors, (1331), 534 states have internal predecessors, (1331), 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 21:45:30,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 1331 transitions. [2021-06-04 21:45:30,436 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 1331 transitions. Word has length 41 [2021-06-04 21:45:30,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:45:30,436 INFO L482 AbstractCegarLoop]: Abstraction has 535 states and 1331 transitions. [2021-06-04 21:45:30,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 21:45:30,437 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 1331 transitions. [2021-06-04 21:45:30,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:45:30,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:45:30,438 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] [2021-06-04 21:45:30,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-04 21:45:30,438 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 21:45:30,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:45:30,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1044271674, now seen corresponding path program 1 times [2021-06-04 21:45:30,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:45:30,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888890007] [2021-06-04 21:45:30,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:45:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:45:30,525 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 21:45:30,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:45:30,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888890007] [2021-06-04 21:45:30,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888890007] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:45:30,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:45:30,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-04 21:45:30,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447703133] [2021-06-04 21:45:30,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-04 21:45:30,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:45:30,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-04 21:45:30,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-04 21:45:30,531 INFO L87 Difference]: Start difference. First operand 535 states and 1331 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 21:45:30,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:45:30,578 INFO L93 Difference]: Finished difference Result 337 states and 862 transitions. [2021-06-04 21:45:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-04 21:45:30,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2021-06-04 21:45:30,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:45:30,580 INFO L225 Difference]: With dead ends: 337 [2021-06-04 21:45:30,580 INFO L226 Difference]: Without dead ends: 0 [2021-06-04 21:45:30,580 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-04 21:45:30,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-04 21:45:30,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-04 21:45:30,580 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 21:45:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-04 21:45:30,581 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-06-04 21:45:30,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:45:30,581 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-04 21:45:30,581 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 21:45:30,581 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-04 21:45:30,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-04 21:45:30,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-04 21:45:30,583 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-04 21:45:30,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 09:45:30 BasicIcfg [2021-06-04 21:45:30,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-04 21:45:30,587 INFO L168 Benchmark]: Toolchain (without parser) took 2214.95 ms. Allocated memory is still 352.3 MB. Free memory was 314.7 MB in the beginning and 302.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.0 GB. [2021-06-04 21:45:30,587 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 352.3 MB. Free memory is still 332.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-04 21:45:30,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.21 ms. Allocated memory is still 352.3 MB. Free memory was 314.5 MB in the beginning and 314.8 MB in the end (delta: -298.3 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.0 GB. [2021-06-04 21:45:30,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.61 ms. Allocated memory is still 352.3 MB. Free memory was 314.8 MB in the beginning and 312.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-04 21:45:30,588 INFO L168 Benchmark]: Boogie Preprocessor took 32.42 ms. Allocated memory is still 352.3 MB. Free memory was 312.7 MB in the beginning and 311.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-04 21:45:30,591 INFO L168 Benchmark]: RCFGBuilder took 370.23 ms. Allocated memory is still 352.3 MB. Free memory was 311.6 MB in the beginning and 288.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-04 21:45:30,592 INFO L168 Benchmark]: TraceAbstraction took 1190.59 ms. Allocated memory is still 352.3 MB. Free memory was 287.5 MB in the beginning and 302.7 MB in the end (delta: -15.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-04 21:45:30,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 352.3 MB. Free memory is still 332.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 561.21 ms. Allocated memory is still 352.3 MB. Free memory was 314.5 MB in the beginning and 314.8 MB in the end (delta: -298.3 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.61 ms. Allocated memory is still 352.3 MB. Free memory was 314.8 MB in the beginning and 312.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.42 ms. Allocated memory is still 352.3 MB. Free memory was 312.7 MB in the beginning and 311.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 370.23 ms. Allocated memory is still 352.3 MB. Free memory was 311.6 MB in the beginning and 288.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1190.59 ms. Allocated memory is still 352.3 MB. Free memory was 287.5 MB in the beginning and 302.7 MB in the end (delta: -15.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: 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, 107 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1074.5ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 22.3ms, AutomataDifference: 294.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 79.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 405 SDtfs, 198 SDslu, 496 SDs, 0 SdLazy, 117 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 87.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1244occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 163.4ms AutomataMinimizationTime, 5 MinimizatonAttempts, 89 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.8ms SsaConstructionTime, 101.6ms SatisfiabilityAnalysisTime, 245.4ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...