/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/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:00:55,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:00:55,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:00:55,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 20:00:55,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 20:00:55,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 20:00:55,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 20:00:55,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 20:00:55,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 20:00:55,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 20:00:55,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 20:00:55,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 20:00:55,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 20:00:55,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 20:00:55,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 20:00:55,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 20:00:55,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 20:00:55,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 20:00:55,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 20:00:55,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 20:00:55,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 20:00:55,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 20:00:55,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 20:00:55,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 20:00:55,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 20:00:55,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:00:55,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:00:55,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:00:55,510 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 [2021-06-05 20:00:55,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:00:55,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:00:55,548 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:00:55,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:00:55,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:00:55,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:00:55,551 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:00:55,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:00:55,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:00:55,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:00:55,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:00:55,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:00:55,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:00:55,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:00:55,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:00:55,553 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:00:55,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:00:55,554 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:00:55,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:00:55,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:00:55,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:00:55,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:00:55,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:00:55,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:00:55,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:00:55,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:00:55,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:00:55,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:00:55,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:00:55,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:00:55,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:00:55,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:00:55,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:00:55,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:00:55,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:00:55,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:00:55,935 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:00:55,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-06-05 20:00:56,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95a78b1f/881d3c7a101e4c6ea28ec4a7e051ad69/FLAG5fc1e6940 [2021-06-05 20:00:56,549 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:00:56,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-06-05 20:00:56,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95a78b1f/881d3c7a101e4c6ea28ec4a7e051ad69/FLAG5fc1e6940 [2021-06-05 20:00:56,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95a78b1f/881d3c7a101e4c6ea28ec4a7e051ad69 [2021-06-05 20:00:56,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:00:56,837 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:00:56,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:00:56,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:00:56,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:00:56,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:00:56" (1/1) ... [2021-06-05 20:00:56,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e75e1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:56, skipping insertion in model container [2021-06-05 20:00:56,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:00:56" (1/1) ... [2021-06-05 20:00:56,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:00:56,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:00:57,458 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-06-05 20:00:57,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:00:57,482 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:00:57,550 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-06-05 20:00:57,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:00:57,840 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:00:57,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57 WrapperNode [2021-06-05 20:00:57,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:00:57,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:00:57,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:00:57,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:00:57,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (1/1) ... [2021-06-05 20:00:57,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (1/1) ... [2021-06-05 20:00:57,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:00:57,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:00:57,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:00:57,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:00:57,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (1/1) ... [2021-06-05 20:00:57,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (1/1) ... [2021-06-05 20:00:57,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (1/1) ... [2021-06-05 20:00:57,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (1/1) ... [2021-06-05 20:00:57,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (1/1) ... [2021-06-05 20:00:57,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (1/1) ... [2021-06-05 20:00:57,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (1/1) ... [2021-06-05 20:00:58,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:00:58,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:00:58,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:00:58,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:00:58,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (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 [2021-06-05 20:00:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:00:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 20:00:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 20:00:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 20:00:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:00:58,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:00:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:00:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 20:00:58,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 20:00:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:00:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 20:00:58,078 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 20:00:58,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:00:58,633 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-06-05 20:00:58,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:00:58 BoogieIcfgContainer [2021-06-05 20:00:58,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:00:58,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:00:58,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:00:58,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:00:58,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:00:56" (1/3) ... [2021-06-05 20:00:58,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@904ab67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:00:58, skipping insertion in model container [2021-06-05 20:00:58,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:57" (2/3) ... [2021-06-05 20:00:58,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@904ab67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:00:58, skipping insertion in model container [2021-06-05 20:00:58,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:00:58" (3/3) ... [2021-06-05 20:00:58,642 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2021-06-05 20:00:58,649 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:00:58,649 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:00:58,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-06-05 20:00:58,650 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:00:58,682 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,683 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,683 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,683 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,684 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,685 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,685 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,686 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,686 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,686 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,687 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,687 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,687 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,688 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,688 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,690 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,690 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,690 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,691 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:00:58,703 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 20:00:58,722 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 20:00:58,753 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:00:58,753 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:00:58,753 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:00:58,753 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:00:58,753 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:00:58,753 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:00:58,753 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:00:58,753 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1======== [2021-06-05 20:00:58,768 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 95 transitions, 198 flow [2021-06-05 20:00:58,798 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 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) [2021-06-05 20:00:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 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) [2021-06-05 20:00:58,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:00:58,826 INFO L301 ceAbstractionStarter]: Result for error location thread1 was SAFE (1/3) [2021-06-05 20:00:58,828 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 20:00:58,834 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:00:58,834 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:00:58,835 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:00:58,835 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:00:58,835 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:00:58,835 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:00:58,835 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:00:58,835 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread1Thread1of1ForFork0======== [2021-06-05 20:00:58,837 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 95 transitions, 198 flow [2021-06-05 20:00:58,843 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 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) [2021-06-05 20:00:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 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) [2021-06-05 20:00:58,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-05 20:00:58,848 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:00:58,849 INFO L554 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] [2021-06-05 20:00:58,849 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:00:58,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:00:58,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1446939762, now seen corresponding path program 1 times [2021-06-05 20:00:58,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:00:58,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707708032] [2021-06-05 20:00:58,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:00:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:00:59,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:00:59,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:00:59,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707708032] [2021-06-05 20:00:59,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707708032] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:00:59,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:00:59,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:00:59,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010558267] [2021-06-05 20:00:59,272 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:00:59,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:00:59,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:00:59,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:00:59,294 INFO L87 Difference]: Start difference. First operand has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 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 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2021-06-05 20:00:59,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:00:59,394 INFO L93 Difference]: Finished difference Result 265 states and 429 transitions. [2021-06-05 20:00:59,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 20:00:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2021-06-05 20:00:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:00:59,400 INFO L225 Difference]: With dead ends: 265 [2021-06-05 20:00:59,401 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:00:59,402 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:00:59,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:00:59,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:00:59,422 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) [2021-06-05 20:00:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:00:59,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-06-05 20:00:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:00:59,423 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:00:59,424 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2021-06-05 20:00:59,426 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:00:59,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:00:59,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:00:59,428 INFO L301 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE (2/3) [2021-06-05 20:00:59,435 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 20:00:59,437 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:00:59,437 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:00:59,437 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:00:59,437 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:00:59,437 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:00:59,437 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:00:59,437 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:00:59,437 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:00:59,445 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 95 transitions, 198 flow [2021-06-05 20:00:59,450 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 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) [2021-06-05 20:00:59,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 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) [2021-06-05 20:00:59,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-06-05 20:00:59,451 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:00:59,451 INFO L554 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] [2021-06-05 20:00:59,451 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:00:59,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:00:59,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1654812270, now seen corresponding path program 1 times [2021-06-05 20:00:59,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:00:59,452 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123761670] [2021-06-05 20:00:59,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:00:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:00:59,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:00:59,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:00:59,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123761670] [2021-06-05 20:00:59,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123761670] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:00:59,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:00:59,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:00:59,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420198165] [2021-06-05 20:00:59,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:00:59,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:00:59,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:00:59,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:00:59,551 INFO L87 Difference]: Start difference. First operand has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 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 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:00:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:00:59,642 INFO L93 Difference]: Finished difference Result 291 states and 486 transitions. [2021-06-05 20:00:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 20:00:59,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-06-05 20:00:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:00:59,651 INFO L225 Difference]: With dead ends: 291 [2021-06-05 20:00:59,651 INFO L226 Difference]: Without dead ends: 183 [2021-06-05 20:00:59,652 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:00:59,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-06-05 20:00:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-06-05 20:00:59,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 1.6132596685082874) internal successors, (292), 182 states have internal predecessors, (292), 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) [2021-06-05 20:00:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 292 transitions. [2021-06-05 20:00:59,674 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 292 transitions. Word has length 27 [2021-06-05 20:00:59,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:00:59,675 INFO L482 AbstractCegarLoop]: Abstraction has 183 states and 292 transitions. [2021-06-05 20:00:59,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:00:59,675 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 292 transitions. [2021-06-05 20:00:59,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-06-05 20:00:59,676 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:00:59,676 INFO L554 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] [2021-06-05 20:00:59,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:00:59,676 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:00:59,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:00:59,677 INFO L82 PathProgramCache]: Analyzing trace with hash -10744082, now seen corresponding path program 1 times [2021-06-05 20:00:59,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:00:59,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450864023] [2021-06-05 20:00:59,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:00:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:00:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:00:59,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:00:59,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450864023] [2021-06-05 20:00:59,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450864023] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:00:59,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:00:59,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:00:59,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670127531] [2021-06-05 20:00:59,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:00:59,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:00:59,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:00:59,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:00:59,748 INFO L87 Difference]: Start difference. First operand 183 states and 292 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-06-05 20:00:59,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:00:59,786 INFO L93 Difference]: Finished difference Result 181 states and 290 transitions. [2021-06-05 20:00:59,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 20:00:59,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-06-05 20:00:59,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:00:59,788 INFO L225 Difference]: With dead ends: 181 [2021-06-05 20:00:59,788 INFO L226 Difference]: Without dead ends: 175 [2021-06-05 20:00:59,789 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:00:59,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-06-05 20:00:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2021-06-05 20:00:59,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.632183908045977) internal successors, (284), 174 states have internal predecessors, (284), 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) [2021-06-05 20:00:59,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 284 transitions. [2021-06-05 20:00:59,797 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 284 transitions. Word has length 35 [2021-06-05 20:00:59,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:00:59,798 INFO L482 AbstractCegarLoop]: Abstraction has 175 states and 284 transitions. [2021-06-05 20:00:59,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-06-05 20:00:59,798 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 284 transitions. [2021-06-05 20:00:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 20:00:59,799 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:00:59,799 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:00:59,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 20:00:59,800 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:00:59,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:00:59,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1327771601, now seen corresponding path program 1 times [2021-06-05 20:00:59,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:00:59,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918478040] [2021-06-05 20:00:59,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:00:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:00:59,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:00:59,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:00:59,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918478040] [2021-06-05 20:00:59,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918478040] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:00:59,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:00:59,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:00:59,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134160874] [2021-06-05 20:00:59,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:00:59,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:00:59,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:00:59,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:00:59,881 INFO L87 Difference]: Start difference. First operand 175 states and 284 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2021-06-05 20:00:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:00:59,913 INFO L93 Difference]: Finished difference Result 173 states and 282 transitions. [2021-06-05 20:00:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 20:00:59,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 64 [2021-06-05 20:00:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:00:59,914 INFO L225 Difference]: With dead ends: 173 [2021-06-05 20:00:59,914 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:00:59,914 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:00:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:00:59,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:00:59,915 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) [2021-06-05 20:00:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:00:59,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2021-06-05 20:00:59,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:00:59,915 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:00:59,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2021-06-05 20:00:59,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:00:59,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:00:59,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 20:00:59,916 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (3/3) [2021-06-05 20:00:59,916 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:00:59,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:00:59 BasicIcfg [2021-06-05 20:00:59,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:00:59,920 INFO L168 Benchmark]: Toolchain (without parser) took 3082.65 ms. Allocated memory was 339.7 MB in the beginning and 408.9 MB in the end (delta: 69.2 MB). Free memory was 300.9 MB in the beginning and 323.2 MB in the end (delta: -22.4 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:59,921 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 339.7 MB. Free memory is still 320.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:00:59,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1003.19 ms. Allocated memory was 339.7 MB in the beginning and 408.9 MB in the end (delta: 69.2 MB). Free memory was 300.7 MB in the beginning and 368.9 MB in the end (delta: -68.2 MB). Peak memory consumption was 95.0 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:59,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.31 ms. Allocated memory is still 408.9 MB. Free memory was 368.9 MB in the beginning and 365.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:59,922 INFO L168 Benchmark]: Boogie Preprocessor took 62.43 ms. Allocated memory is still 408.9 MB. Free memory was 365.7 MB in the beginning and 362.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:59,922 INFO L168 Benchmark]: RCFGBuilder took 629.08 ms. Allocated memory is still 408.9 MB. Free memory was 362.6 MB in the beginning and 324.8 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. [2021-06-05 20:00:59,923 INFO L168 Benchmark]: TraceAbstraction took 1282.81 ms. Allocated memory is still 408.9 MB. Free memory was 323.8 MB in the beginning and 323.2 MB in the end (delta: 545.7 kB). Peak memory consumption was 545.7 kB. Max. memory is 16.0 GB. [2021-06-05 20:00:59,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 339.7 MB. Free memory is still 320.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1003.19 ms. Allocated memory was 339.7 MB in the beginning and 408.9 MB in the end (delta: 69.2 MB). Free memory was 300.7 MB in the beginning and 368.9 MB in the end (delta: -68.2 MB). Peak memory consumption was 95.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 99.31 ms. Allocated memory is still 408.9 MB. Free memory was 368.9 MB in the beginning and 365.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 62.43 ms. Allocated memory is still 408.9 MB. Free memory was 365.7 MB in the beginning and 362.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 629.08 ms. Allocated memory is still 408.9 MB. Free memory was 362.6 MB in the beginning and 324.8 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1282.81 ms. Allocated memory is still 408.9 MB. Free memory was 323.8 MB in the beginning and 323.2 MB in the end (delta: 545.7 kB). Peak memory consumption was 545.7 kB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: 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 for errors in thread instance: thread1 with 1 thread instances CFG has 3 procedures, 106 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 75.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 26.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 45.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread1Thread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 106 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 593.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.2ms, AutomataDifference: 129.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 126 SDtfs, 97 SDslu, 239 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.0ms SsaConstructionTime, 47.1ms SatisfiabilityAnalysisTime, 199.4ms InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 106 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 479.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 2.7ms, AutomataDifference: 177.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 221 SDtfs, 223 SDslu, 420 SDs, 0 SdLazy, 53 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 84.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 31.6ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.3ms SsaConstructionTime, 29.7ms SatisfiabilityAnalysisTime, 161.4ms InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...