/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-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/simpleReturn.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 07:19:54,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 07:19:54,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 07:19:54,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 07:19:54,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 07:19:54,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 07:19:54,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 07:19:54,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 07:19:54,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 07:19:54,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 07:19:54,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 07:19:54,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-03-12 07:19:54,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 07:19:54,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 07:19:54,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 07:19:54,714 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-Sleep-NoLbe-Delay.epf [2021-03-12 07:19:54,740 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 07:19:54,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 07:19:54,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 07:19:54,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 07:19:54,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 07:19:54,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 07:19:54,743 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 07:19:54,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 07:19:54,743 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 07:19:54,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 07:19:54,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 07:19:54,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 07:19:54,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 07:19:54,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 07:19:54,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 07:19:54,744 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 07:19:54,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 07:19:54,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 07:19:54,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 07:19:54,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 07:19:54,746 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 07:19:54,746 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 07:19:54,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 07:19:54,746 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-12 07:19:54,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 07:19:54,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 07:19:55,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 07:19:55,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 07:19:55,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-12 07:19:55,006 INFO L275 PluginConnector]: CDTParser initialized [2021-03-12 07:19:55,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/simpleReturn.c [2021-03-12 07:19:55,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18bd106f5/21d5dd90526b4eb7b809f092d39903db/FLAG1628797a3 [2021-03-12 07:19:55,395 INFO L306 CDTParser]: Found 1 translation units. [2021-03-12 07:19:55,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/simpleReturn.c [2021-03-12 07:19:55,395 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-12 07:19:55,395 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-12 07:19:55,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18bd106f5/21d5dd90526b4eb7b809f092d39903db/FLAG1628797a3 [2021-03-12 07:19:55,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18bd106f5/21d5dd90526b4eb7b809f092d39903db [2021-03-12 07:19:55,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 07:19:55,795 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-12 07:19:55,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-12 07:19:55,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-12 07:19:55,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-12 07:19:55,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54a83be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55, skipping insertion in model container [2021-03-12 07:19:55,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-12 07:19:55,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-12 07:19:55,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 07:19:55,904 INFO L203 MainTranslator]: Completed pre-run [2021-03-12 07:19:55,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 07:19:55,918 INFO L208 MainTranslator]: Completed translation [2021-03-12 07:19:55,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55 WrapperNode [2021-03-12 07:19:55,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-12 07:19:55,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 07:19:55,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 07:19:55,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 07:19:55,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 07:19:55,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 07:19:55,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 07:19:55,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 07:19:55,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (1/1) ... [2021-03-12 07:19:55,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 07:19:55,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 07:19:55,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 07:19:55,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 07:19:55,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (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 [2021-03-12 07:19:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-03-12 07:19:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-12 07:19:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-03-12 07:19:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-03-12 07:19:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 07:19:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 07:19:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-12 07:19:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-12 07:19:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-12 07:19:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-12 07:19:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-12 07:19:56,028 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 07:19:56,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 07:19:56,259 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-12 07:19:56,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 07:19:56 BoogieIcfgContainer [2021-03-12 07:19:56,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 07:19:56,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 07:19:56,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 07:19:56,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 07:19:56,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.03 07:19:55" (1/3) ... [2021-03-12 07:19:56,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e90bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 07:19:56, skipping insertion in model container [2021-03-12 07:19:56,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 07:19:55" (2/3) ... [2021-03-12 07:19:56,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e90bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 07:19:56, skipping insertion in model container [2021-03-12 07:19:56,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 07:19:56" (3/3) ... [2021-03-12 07:19:56,264 INFO L111 eAbstractionObserver]: Analyzing ICFG simpleReturn.c [2021-03-12 07:19:56,269 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 07:19:56,269 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 07:19:56,272 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 07:19:56,272 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 07:19:56,295 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,295 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,295 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,295 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,296 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,296 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,296 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,296 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,296 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,296 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,296 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,297 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,298 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,298 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,298 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,298 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,298 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,299 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,299 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,299 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,299 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,299 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,299 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,300 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,300 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,300 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,301 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,301 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,301 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,302 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,303 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,303 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,303 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,303 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,303 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,303 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 07:19:56,310 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-12 07:19:56,321 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-03-12 07:19:56,362 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 07:19:56,362 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 07:19:56,362 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 07:19:56,362 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 07:19:56,362 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 07:19:56,362 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 07:19:56,362 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 07:19:56,362 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-12 07:19:56,388 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 07:19:56,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 07:19:56,393 INFO L82 PathProgramCache]: Analyzing trace with hash -214640044, now seen corresponding path program 1 times [2021-03-12 07:19:56,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 07:19:56,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417243907] [2021-03-12 07:19:56,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 07:19:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 07:19:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 07:19:56,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417243907] [2021-03-12 07:19:56,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 07:19:56,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-12 07:19:56,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743357018] [2021-03-12 07:19:56,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-12 07:19:56,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 07:19:56,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-12 07:19:56,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-12 07:19:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 07:19:56,846 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 07:19:56,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 07:19:56,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 07:19:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-12 07:19:57,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 07:19:57,598 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 07:19:57,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 07:19:57,598 INFO L82 PathProgramCache]: Analyzing trace with hash -543891440, now seen corresponding path program 2 times [2021-03-12 07:19:57,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 07:19:57,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606347716] [2021-03-12 07:19:57,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 07:19:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 07:19:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 07:19:57,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606347716] [2021-03-12 07:19:57,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 07:19:57,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-12 07:19:57,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712553824] [2021-03-12 07:19:57,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-12 07:19:57,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 07:19:57,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-12 07:19:57,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-12 07:19:57,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 07:19:57,815 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 07:19:57,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 07:19:57,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-03-12 07:19:57,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 07:19:58,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 07:19:58,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-12 07:19:58,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 07:19:58,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 07:19:58 BasicIcfg [2021-03-12 07:19:58,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 07:19:58,580 INFO L168 Benchmark]: Toolchain (without parser) took 2787.92 ms. Allocated memory was 390.1 MB in the beginning and 469.8 MB in the end (delta: 79.7 MB). Free memory was 353.3 MB in the beginning and 449.4 MB in the end (delta: -96.1 MB). Peak memory consumption was 212.9 MB. Max. memory is 16.0 GB. [2021-03-12 07:19:58,580 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 390.1 MB. Free memory was 371.6 MB in the beginning and 371.6 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 07:19:58,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.24 ms. Allocated memory is still 390.1 MB. Free memory was 352.7 MB in the beginning and 369.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-03-12 07:19:58,581 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.90 ms. Allocated memory is still 390.1 MB. Free memory was 369.2 MB in the beginning and 373.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-12 07:19:58,581 INFO L168 Benchmark]: Boogie Preprocessor took 27.44 ms. Allocated memory is still 390.1 MB. Free memory was 373.1 MB in the beginning and 372.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 07:19:58,581 INFO L168 Benchmark]: RCFGBuilder took 274.44 ms. Allocated memory is still 390.1 MB. Free memory was 372.1 MB in the beginning and 353.2 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-12 07:19:58,582 INFO L168 Benchmark]: TraceAbstraction took 2318.75 ms. Allocated memory was 390.1 MB in the beginning and 469.8 MB in the end (delta: 79.7 MB). Free memory was 353.2 MB in the beginning and 449.6 MB in the end (delta: -96.4 MB). Peak memory consumption was 209.8 MB. Max. memory is 16.0 GB. [2021-03-12 07:19:58,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 390.1 MB. Free memory was 371.6 MB in the beginning and 371.6 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 122.24 ms. Allocated memory is still 390.1 MB. Free memory was 352.7 MB in the beginning and 369.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 37.90 ms. Allocated memory is still 390.1 MB. Free memory was 369.2 MB in the beginning and 373.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.44 ms. Allocated memory is still 390.1 MB. Free memory was 373.1 MB in the beginning and 372.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 274.44 ms. Allocated memory is still 390.1 MB. Free memory was 372.1 MB in the beginning and 353.2 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2318.75 ms. Allocated memory was 390.1 MB in the beginning and 469.8 MB in the end (delta: 79.7 MB). Free memory was 353.2 MB in the beginning and 449.6 MB in the end (delta: -96.4 MB). Peak memory consumption was 209.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 43, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 34, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 3, Negative conditional cache size: 2, Negative unconditional cache size: 1, SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 34, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 3, Negative conditional cache size: 2, Negative unconditional cache size: 1, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 34, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 3, Negative conditional cache size: 2, Negative unconditional cache size: 1, Eliminated conditions: 0 ], Maximal queried relation: 2, Independence queries for same thread: 3 - PositiveResult [Line: 30]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2228.0ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.3ms, PartialOrderReductionTime: 1511.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 58, 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: TRACE_CHECK: 12.5ms SsaConstructionTime, 91.4ms SatisfiabilityAnalysisTime, 497.2ms InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...