/usr/bin/java -Xmx8000000000 -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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 23:56:26,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 23:56:26,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 23:56:26,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-13 23:56:26,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-13 23:56:26,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-13 23:56:26,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-13 23:56:26,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-13 23:56:26,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-13 23:56:26,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-13 23:56:26,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-13 23:56:26,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-13 23:56:26,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 23:56:26,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 23:56:26,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 23:56:26,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 23:56:26,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 23:56:26,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 23:56:26,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 23:56:26,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 23:56:26,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 23:56:26,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 23:56:26,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 23:56:26,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 23:56:26,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-13 23:56:26,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-13 23:56:26,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-13 23:56:26,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-13 23:56:26,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-13 23:56:26,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-13 23:56:26,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-13 23:56:26,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-13 23:56:26,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-13 23:56:26,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-13 23:56:26,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-13 23:56:26,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-13 23:56:26,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-13 23:56:26,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-13 23:56:26,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 23:56:26,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 23:56:26,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 23:56:26,854 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-Delay.epf [2021-07-13 23:56:26,875 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 23:56:26,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 23:56:26,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 23:56:26,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 23:56:26,877 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 23:56:26,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 23:56:26,877 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 23:56:26,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 23:56:26,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 23:56:26,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 23:56:26,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 23:56:26,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 23:56:26,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 23:56:26,878 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 23:56:26,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 23:56:26,878 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 23:56:26,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 23:56:26,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 23:56:26,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 23:56:26,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 23:56:26,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 23:56:26,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 23:56:26,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 23:56:26,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 23:56:26,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 23:56:26,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 23:56:26,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 23:56:26,880 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 23:56:26,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 23:56:26,880 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-13 23:56:26,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 23:56:27,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 23:56:27,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 23:56:27,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 23:56:27,188 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 23:56:27,189 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 23:56:27,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2021-07-13 23:56:27,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/056d50179/5506a6e11146412d976403ae20d93626/FLAGe6e0181f5 [2021-07-13 23:56:27,792 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 23:56:27,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2021-07-13 23:56:27,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/056d50179/5506a6e11146412d976403ae20d93626/FLAGe6e0181f5 [2021-07-13 23:56:28,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/056d50179/5506a6e11146412d976403ae20d93626 [2021-07-13 23:56:28,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 23:56:28,268 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 23:56:28,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 23:56:28,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 23:56:28,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 23:56:28,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:28,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b01051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28, skipping insertion in model container [2021-07-13 23:56:28,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:28,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 23:56:28,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 23:56:28,810 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2021-07-13 23:56:28,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 23:56:28,869 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 23:56:28,919 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2021-07-13 23:56:28,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 23:56:28,992 INFO L208 MainTranslator]: Completed translation [2021-07-13 23:56:28,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28 WrapperNode [2021-07-13 23:56:28,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 23:56:28,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 23:56:28,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 23:56:28,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 23:56:29,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:29,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:29,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 23:56:29,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 23:56:29,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 23:56:29,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 23:56:29,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:29,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:29,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:29,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:29,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:29,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:29,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... [2021-07-13 23:56:29,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 23:56:29,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 23:56:29,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 23:56:29,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 23:56:29,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 23:56:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 23:56:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 23:56:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 23:56:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-13 23:56:29,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-13 23:56:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-13 23:56:29,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-13 23:56:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 23:56:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-13 23:56:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 23:56:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 23:56:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 23:56:29,173 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 23:56:29,601 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 23:56:29,601 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-13 23:56:29,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:56:29 BoogieIcfgContainer [2021-07-13 23:56:29,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 23:56:29,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 23:56:29,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 23:56:29,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 23:56:29,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 11:56:28" (1/3) ... [2021-07-13 23:56:29,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3942f05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:56:29, skipping insertion in model container [2021-07-13 23:56:29,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:56:28" (2/3) ... [2021-07-13 23:56:29,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3942f05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:56:29, skipping insertion in model container [2021-07-13 23:56:29,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:56:29" (3/3) ... [2021-07-13 23:56:29,611 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2021-07-13 23:56:29,615 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 23:56:29,616 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 23:56:29,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 23:56:29,617 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 23:56:29,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,650 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,650 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,650 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,654 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,654 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,657 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,657 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,657 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,657 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,659 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,660 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,660 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,660 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,673 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,673 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,673 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,673 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,674 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,674 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,674 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 23:56:29,699 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-13 23:56:29,720 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-13 23:56:29,736 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 23:56:29,736 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 23:56:29,736 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 23:56:29,736 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 23:56:29,736 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 23:56:29,737 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 23:56:29,737 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 23:56:29,737 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 23:56:29,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 998 states, 923 states have (on average 1.5666305525460456) internal successors, (1446), 997 states have internal predecessors, (1446), 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) [2021-07-13 23:56:29,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-07-13 23:56:29,951 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:56:29,951 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:56:29,952 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:56:29,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:56:29,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1229046999, now seen corresponding path program 1 times [2021-07-13 23:56:29,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:56:29,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830798156] [2021-07-13 23:56:29,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:56:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:56:30,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:56:30,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:56:30,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:56:30,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:56:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:56:30,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:56:30,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830798156] [2021-07-13 23:56:30,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830798156] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:56:30,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:56:30,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-13 23:56:30,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459884957] [2021-07-13 23:56:30,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-13 23:56:30,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:56:30,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-13 23:56:30,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-13 23:56:30,258 INFO L87 Difference]: Start difference. First operand has 998 states, 923 states have (on average 1.5666305525460456) internal successors, (1446), 997 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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) [2021-07-13 23:56:30,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:56:30,293 INFO L93 Difference]: Finished difference Result 998 states and 1360 transitions. [2021-07-13 23:56:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:56:30,294 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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 78 [2021-07-13 23:56:30,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:56:30,302 INFO L225 Difference]: With dead ends: 998 [2021-07-13 23:56:30,303 INFO L226 Difference]: Without dead ends: 220 [2021-07-13 23:56:30,304 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-13 23:56:30,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-07-13 23:56:30,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-07-13 23:56:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.4063926940639269) internal successors, (308), 219 states have internal predecessors, (308), 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) [2021-07-13 23:56:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 308 transitions. [2021-07-13 23:56:30,346 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 308 transitions. Word has length 78 [2021-07-13 23:56:30,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:56:30,346 INFO L482 AbstractCegarLoop]: Abstraction has 220 states and 308 transitions. [2021-07-13 23:56:30,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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) [2021-07-13 23:56:30,347 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 308 transitions. [2021-07-13 23:56:30,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-07-13 23:56:30,348 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 23:56:30,349 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 23:56:30,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 23:56:30,349 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 23:56:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:56:30,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1739581176, now seen corresponding path program 1 times [2021-07-13 23:56:30,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:56:30,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067532096] [2021-07-13 23:56:30,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:56:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:56:30,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:56:30,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:56:30,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:56:30,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:56:30,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:56:30,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-13 23:56:30,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:56:30,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-13 23:56:30,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:56:30,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:56:30,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:56:30,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:56:30,583 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-07-13 23:56:30,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-13 23:56:30,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:56:30,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-13 23:56:30,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:56:30,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:56:30,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067532096] [2021-07-13 23:56:30,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067532096] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 23:56:30,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 23:56:30,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 23:56:30,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935002443] [2021-07-13 23:56:30,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 23:56:30,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:56:30,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 23:56:30,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-13 23:56:30,594 INFO L87 Difference]: Start difference. First operand 220 states and 308 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2021-07-13 23:56:30,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 23:56:30,718 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2021-07-13 23:56:30,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 23:56:30,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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 78 [2021-07-13 23:56:30,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 23:56:30,720 INFO L225 Difference]: With dead ends: 137 [2021-07-13 23:56:30,720 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 23:56:30,721 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 105.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-13 23:56:30,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 23:56:30,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 23:56:30,721 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) [2021-07-13 23:56:30,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 23:56:30,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2021-07-13 23:56:30,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 23:56:30,722 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 23:56:30,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2021-07-13 23:56:30,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 23:56:30,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 23:56:30,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 23:56:30,724 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 23:56:30,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 11:56:30 BasicIcfg [2021-07-13 23:56:30,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 23:56:30,726 INFO L168 Benchmark]: Toolchain (without parser) took 2457.76 ms. Allocated memory is still 194.0 MB. Free memory was 157.3 MB in the beginning and 141.3 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2021-07-13 23:56:30,726 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 194.0 MB. Free memory is still 175.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 23:56:30,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.68 ms. Allocated memory is still 194.0 MB. Free memory was 157.1 MB in the beginning and 161.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 17.0 MB. Max. memory is 8.0 GB. [2021-07-13 23:56:30,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.05 ms. Allocated memory is still 194.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 23:56:30,728 INFO L168 Benchmark]: Boogie Preprocessor took 34.57 ms. Allocated memory is still 194.0 MB. Free memory was 159.9 MB in the beginning and 158.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 23:56:30,728 INFO L168 Benchmark]: RCFGBuilder took 509.52 ms. Allocated memory is still 194.0 MB. Free memory was 158.3 MB in the beginning and 130.5 MB in the end (delta: 27.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2021-07-13 23:56:30,729 INFO L168 Benchmark]: TraceAbstraction took 1120.84 ms. Allocated memory is still 194.0 MB. Free memory was 130.0 MB in the beginning and 141.3 MB in the end (delta: -11.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 23:56:30,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 194.0 MB. Free memory is still 175.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 717.68 ms. Allocated memory is still 194.0 MB. Free memory was 157.1 MB in the beginning and 161.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 17.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 62.05 ms. Allocated memory is still 194.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.57 ms. Allocated memory is still 194.0 MB. Free memory was 159.9 MB in the beginning and 158.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 509.52 ms. Allocated memory is still 194.0 MB. Free memory was 158.3 MB in the beginning and 130.5 MB in the end (delta: 27.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1120.84 ms. Allocated memory is still 194.0 MB. Free memory was 130.0 MB in the beginning and 141.3 MB in the end (delta: -11.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2252, positive: 1933, positive conditional: 1933, positive unconditional: 0, negative: 319, negative conditional: 319, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1994, positive: 1933, positive conditional: 0, positive unconditional: 1933, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 497, positive: 481, positive conditional: 0, positive unconditional: 481, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 497, positive: 473, positive conditional: 0, positive unconditional: 473, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 24, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 39, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1994, positive: 1452, positive conditional: 0, positive unconditional: 1452, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 497, unknown conditional: 0, unknown unconditional: 497] , Statistics on independence cache: Total cache size (in pairs): 497, Positive cache size: 481, Positive conditional cache size: 0, Positive unconditional cache size: 481, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Independence queries for same thread: 258 - PositiveResult [Line: 966]: 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: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 126 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 988.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 23.5ms, AutomataDifference: 194.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 191.9ms, PartialOrderReductionTime: 177.1ms, HoareTripleCheckerStatistics: 172 SDtfs, 138 SDslu, 249 SDs, 0 SdLazy, 32 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 105.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=998occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 27.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.6ms SsaConstructionTime, 119.9ms SatisfiabilityAnalysisTime, 289.7ms InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...