/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 18:14:17,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 18:14:17,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 18:14:17,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 18:14:17,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 18:14:17,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 18:14:17,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 18:14:17,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 18:14:17,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 18:14:17,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 18:14:17,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 18:14:17,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 18:14:17,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 18:14:17,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 18:14:17,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 18:14:17,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 18:14:17,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 18:14:17,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 18:14:17,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 18:14:17,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 18:14:17,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 18:14:17,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 18:14:17,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 18:14:17,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 18:14:17,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 18:14:17,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 18:14:17,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 18:14:17,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 18:14:17,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 18:14:17,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 18:14:17,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 18:14:17,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 18:14:17,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 18:14:17,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 18:14:17,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 18:14:17,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 18:14:17,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 18:14:17,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 18:14:17,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 18:14:17,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 18:14:17,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 18:14:17,793 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-keepdead.epf [2021-01-20 18:14:17,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 18:14:17,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 18:14:17,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 18:14:17,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 18:14:17,851 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 18:14:17,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 18:14:17,852 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 18:14:17,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 18:14:17,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 18:14:17,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 18:14:17,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 18:14:17,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 18:14:17,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 18:14:17,855 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 18:14:17,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 18:14:17,855 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 18:14:17,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 18:14:17,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 18:14:17,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 18:14:17,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 18:14:17,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 18:14:17,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 18:14:17,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 18:14:17,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 18:14:17,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 18:14:17,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 18:14:17,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 18:14:17,858 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 18:14:17,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 18:14:17,859 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 18:14:17,859 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 18:14:17,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 18:14:18,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 18:14:18,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 18:14:18,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 18:14:18,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 18:14:18,289 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 18:14:18,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2021-01-20 18:14:18,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e457c013/91b11bded3bd44e192291e2cd2175797/FLAGafc038eae [2021-01-20 18:14:19,103 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 18:14:19,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2021-01-20 18:14:19,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e457c013/91b11bded3bd44e192291e2cd2175797/FLAGafc038eae [2021-01-20 18:14:19,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e457c013/91b11bded3bd44e192291e2cd2175797 [2021-01-20 18:14:19,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 18:14:19,338 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 18:14:19,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 18:14:19,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 18:14:19,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 18:14:19,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 06:14:19" (1/1) ... [2021-01-20 18:14:19,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b1b501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:19, skipping insertion in model container [2021-01-20 18:14:19,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 06:14:19" (1/1) ... [2021-01-20 18:14:19,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 18:14:19,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 18:14:19,702 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 18:14:19,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 18:14:19,899 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 18:14:19,928 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 18:14:19,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 18:14:20,150 INFO L208 MainTranslator]: Completed translation [2021-01-20 18:14:20,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20 WrapperNode [2021-01-20 18:14:20,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 18:14:20,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 18:14:20,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 18:14:20,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 18:14:20,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (1/1) ... [2021-01-20 18:14:20,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (1/1) ... [2021-01-20 18:14:20,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 18:14:20,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 18:14:20,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 18:14:20,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 18:14:20,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (1/1) ... [2021-01-20 18:14:20,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (1/1) ... [2021-01-20 18:14:20,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (1/1) ... [2021-01-20 18:14:20,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (1/1) ... [2021-01-20 18:14:20,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (1/1) ... [2021-01-20 18:14:20,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (1/1) ... [2021-01-20 18:14:20,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (1/1) ... [2021-01-20 18:14:20,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 18:14:20,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 18:14:20,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 18:14:20,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 18:14:20,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (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 [2021-01-20 18:14:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-20 18:14:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-01-20 18:14:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-01-20 18:14:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-01-20 18:14:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-01-20 18:14:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 18:14:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 18:14:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 18:14:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 18:14:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 18:14:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 18:14:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 18:14:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 18:14:20,370 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 18:14:20,761 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 18:14:20,762 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 18:14:20,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 06:14:20 BoogieIcfgContainer [2021-01-20 18:14:20,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 18:14:20,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 18:14:20,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 18:14:20,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 18:14:20,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 06:14:19" (1/3) ... [2021-01-20 18:14:20,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261870a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 06:14:20, skipping insertion in model container [2021-01-20 18:14:20,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 06:14:20" (2/3) ... [2021-01-20 18:14:20,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261870a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 06:14:20, skipping insertion in model container [2021-01-20 18:14:20,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 06:14:20" (3/3) ... [2021-01-20 18:14:20,775 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2021-01-20 18:14:20,790 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 18:14:20,791 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 18:14:20,794 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-20 18:14:20,795 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 18:14:20,842 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,843 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,843 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,843 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,844 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,844 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,844 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,844 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,844 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,845 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,845 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,848 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,848 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,851 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,851 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,852 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,853 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,853 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,853 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,853 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,855 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,855 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,856 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,856 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,857 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,857 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,857 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,858 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,859 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,881 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,881 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,881 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,882 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,882 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,882 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,882 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,883 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 18:14:20,890 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-01-20 18:14:20,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-20 18:14:20,924 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 18:14:20,925 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 18:14:20,925 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 18:14:20,925 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 18:14:20,925 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 18:14:20,925 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 18:14:20,925 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 18:14:20,926 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 18:14:20,937 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 82 transitions, 186 flow [2021-01-20 18:14:21,029 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1280 states, 1276 states have (on average 2.841692789968652) internal successors, (3626), 1279 states have internal predecessors, (3626), 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) [2021-01-20 18:14:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 1280 states, 1276 states have (on average 2.841692789968652) internal successors, (3626), 1279 states have internal predecessors, (3626), 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) [2021-01-20 18:14:21,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-20 18:14:21,049 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 18:14:21,049 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 18:14:21,050 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 18:14:21,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 18:14:21,056 INFO L82 PathProgramCache]: Analyzing trace with hash 987248998, now seen corresponding path program 1 times [2021-01-20 18:14:21,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 18:14:21,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265770911] [2021-01-20 18:14:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 18:14:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 18:14:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 18:14:21,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265770911] [2021-01-20 18:14:21,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 18:14:21,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-20 18:14:21,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908052678] [2021-01-20 18:14:21,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-20 18:14:21,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 18:14:21,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-20 18:14:21,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-20 18:14:21,342 INFO L87 Difference]: Start difference. First operand has 1280 states, 1276 states have (on average 2.841692789968652) internal successors, (3626), 1279 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 18:14:21,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 18:14:21,410 INFO L93 Difference]: Finished difference Result 1160 states and 2943 transitions. [2021-01-20 18:14:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-20 18:14:21,411 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-01-20 18:14:21,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 18:14:21,415 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-20 18:14:21,415 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 2943 transitions. Word has length 28 [2021-01-20 18:14:21,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 18:14:21,417 INFO L481 AbstractCegarLoop]: Abstraction has 1160 states and 2943 transitions. [2021-01-20 18:14:21,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 18:14:21,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 2943 transitions. [2021-01-20 18:14:21,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-20 18:14:21,431 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 18:14:21,431 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 18:14:21,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 18:14:21,432 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 18:14:21,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 18:14:21,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1015878149, now seen corresponding path program 1 times [2021-01-20 18:14:21,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 18:14:21,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838081051] [2021-01-20 18:14:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 18:14:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 18:14:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 18:14:21,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838081051] [2021-01-20 18:14:21,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 18:14:21,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-20 18:14:21,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100577496] [2021-01-20 18:14:21,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-20 18:14:21,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 18:14:21,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-20 18:14:21,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 18:14:21,549 INFO L87 Difference]: Start difference. First operand 1160 states and 2943 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 18:14:21,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 18:14:21,590 INFO L93 Difference]: Finished difference Result 1226 states and 3007 transitions. [2021-01-20 18:14:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-20 18:14:21,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-01-20 18:14:21,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 18:14:21,592 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 18:14:21,593 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 3007 transitions. Word has length 28 [2021-01-20 18:14:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 18:14:21,593 INFO L481 AbstractCegarLoop]: Abstraction has 1226 states and 3007 transitions. [2021-01-20 18:14:21,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 18:14:21,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 3007 transitions. [2021-01-20 18:14:21,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-20 18:14:21,595 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 18:14:21,596 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 18:14:21,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 18:14:21,596 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 18:14:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 18:14:21,597 INFO L82 PathProgramCache]: Analyzing trace with hash 414714930, now seen corresponding path program 1 times [2021-01-20 18:14:21,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 18:14:21,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317170735] [2021-01-20 18:14:21,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 18:14:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 18:14:21,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 18:14:21,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317170735] [2021-01-20 18:14:21,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 18:14:21,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-20 18:14:21,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303801841] [2021-01-20 18:14:21,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-20 18:14:21,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 18:14:21,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-20 18:14:21,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 18:14:21,710 INFO L87 Difference]: Start difference. First operand 1226 states and 3007 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 18:14:21,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 18:14:21,747 INFO L93 Difference]: Finished difference Result 998 states and 2389 transitions. [2021-01-20 18:14:21,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-20 18:14:21,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-01-20 18:14:21,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 18:14:21,749 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 18:14:21,749 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 2389 transitions. Word has length 31 [2021-01-20 18:14:21,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 18:14:21,750 INFO L481 AbstractCegarLoop]: Abstraction has 998 states and 2389 transitions. [2021-01-20 18:14:21,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 18:14:21,751 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 2389 transitions. [2021-01-20 18:14:21,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-20 18:14:21,753 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 18:14:21,754 INFO L504 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] [2021-01-20 18:14:21,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 18:14:21,754 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 18:14:21,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 18:14:21,755 INFO L82 PathProgramCache]: Analyzing trace with hash 441924790, now seen corresponding path program 1 times [2021-01-20 18:14:21,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 18:14:21,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254238811] [2021-01-20 18:14:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 18:14:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 18:14:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 18:14:21,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254238811] [2021-01-20 18:14:21,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 18:14:21,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 18:14:21,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799137306] [2021-01-20 18:14:21,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 18:14:21,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 18:14:21,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 18:14:21,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-20 18:14:21,872 INFO L87 Difference]: Start difference. First operand 998 states and 2389 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-20 18:14:22,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 18:14:22,044 INFO L93 Difference]: Finished difference Result 1256 states and 3068 transitions. [2021-01-20 18:14:22,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 18:14:22,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2021-01-20 18:14:22,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 18:14:22,045 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-01-20 18:14:22,046 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 3068 transitions. Word has length 38 [2021-01-20 18:14:22,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 18:14:22,046 INFO L481 AbstractCegarLoop]: Abstraction has 1256 states and 3068 transitions. [2021-01-20 18:14:22,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-20 18:14:22,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 3068 transitions. [2021-01-20 18:14:22,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-20 18:14:22,050 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 18:14:22,050 INFO L504 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] [2021-01-20 18:14:22,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 18:14:22,051 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 18:14:22,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 18:14:22,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1891628272, now seen corresponding path program 2 times [2021-01-20 18:14:22,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 18:14:22,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007220712] [2021-01-20 18:14:22,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 18:14:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 18:14:22,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 18:14:22,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007220712] [2021-01-20 18:14:22,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 18:14:22,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 18:14:22,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655112328] [2021-01-20 18:14:22,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 18:14:22,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 18:14:22,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 18:14:22,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-20 18:14:22,124 INFO L87 Difference]: Start difference. First operand 1256 states and 3068 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-20 18:14:22,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 18:14:22,269 INFO L93 Difference]: Finished difference Result 1034 states and 2523 transitions. [2021-01-20 18:14:22,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 18:14:22,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2021-01-20 18:14:22,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 18:14:22,271 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-01-20 18:14:22,271 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 2523 transitions. Word has length 38 [2021-01-20 18:14:22,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 18:14:22,272 INFO L481 AbstractCegarLoop]: Abstraction has 1034 states and 2523 transitions. [2021-01-20 18:14:22,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-20 18:14:22,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 2523 transitions. [2021-01-20 18:14:22,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 18:14:22,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 18:14:22,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 06:14:22 BasicIcfg [2021-01-20 18:14:22,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 18:14:22,283 INFO L168 Benchmark]: Toolchain (without parser) took 2944.34 ms. Allocated memory is still 302.0 MB. Free memory was 274.9 MB in the beginning and 127.8 MB in the end (delta: 147.2 MB). Peak memory consumption was 150.2 MB. Max. memory is 16.0 GB. [2021-01-20 18:14:22,283 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 18:14:22,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.26 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 276.5 MB in the end (delta: -1.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.0 GB. [2021-01-20 18:14:22,285 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.72 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 18:14:22,286 INFO L168 Benchmark]: Boogie Preprocessor took 58.06 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 272.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 18:14:22,287 INFO L168 Benchmark]: RCFGBuilder took 476.86 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 249.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 18:14:22,287 INFO L168 Benchmark]: TraceAbstraction took 1512.77 ms. Allocated memory is still 302.0 MB. Free memory was 249.4 MB in the beginning and 127.8 MB in the end (delta: 121.6 MB). Peak memory consumption was 121.6 MB. Max. memory is 16.0 GB. [2021-01-20 18:14:22,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 812.26 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 276.5 MB in the end (delta: -1.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 74.72 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 58.06 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 272.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 476.86 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 249.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1512.77 ms. Allocated memory is still 302.0 MB. Free memory was 249.4 MB in the beginning and 127.8 MB in the end (delta: 121.6 MB). Peak memory consumption was 121.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 73 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 514 SDtfs, 284 SDslu, 705 SDs, 0 SdLazy, 179 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1280occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 7430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...