/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/18-conditional-atomic.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 14:22:41,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 14:22:41,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 14:22:41,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 14:22:41,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 14:22:41,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 14:22:41,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 14:22:41,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 14:22:41,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 14:22:41,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 14:22:41,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 14:22:41,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 14:22:41,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 14:22:41,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 14:22:41,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 14:22:41,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 14:22:41,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 14:22:41,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 14:22:41,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 14:22:41,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 14:22:41,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 14:22:41,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 14:22:41,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 14:22:41,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 14:22:41,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 14:22:41,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 14:22:41,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 14:22:41,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 14:22:41,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 14:22:41,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 14:22:41,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 14:22:41,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 14:22:41,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 14:22:41,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 14:22:41,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 14:22:41,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 14:22:41,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 14:22:41,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 14:22:41,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 14:22:41,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 14:22:41,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 14:22:41,891 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-PN-NoLbe.epf [2021-06-10 14:22:41,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 14:22:41,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 14:22:41,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 14:22:41,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 14:22:41,911 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 14:22:41,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 14:22:41,912 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 14:22:41,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 14:22:41,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 14:22:41,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 14:22:41,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 14:22:41,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 14:22:41,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 14:22:41,913 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 14:22:41,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 14:22:41,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 14:22:41,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 14:22:41,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 14:22:41,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 14:22:41,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 14:22:41,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 14:22:41,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 14:22:41,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 14:22:41,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 14:22:41,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 14:22:41,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 14:22:41,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 14:22:41,915 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 14:22:41,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 14:22:41,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 14:22:42,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 14:22:42,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 14:22:42,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 14:22:42,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 14:22:42,264 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 14:22:42,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/18-conditional-atomic.c [2021-06-10 14:22:42,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1cae173/75439f02948148cfa1157f0c46235a0a/FLAG980b95c74 [2021-06-10 14:22:42,792 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 14:22:42,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/18-conditional-atomic.c [2021-06-10 14:22:42,792 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-10 14:22:42,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1cae173/75439f02948148cfa1157f0c46235a0a/FLAG980b95c74 [2021-06-10 14:22:42,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1cae173/75439f02948148cfa1157f0c46235a0a [2021-06-10 14:22:42,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 14:22:42,838 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 14:22:42,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 14:22:42,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 14:22:42,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 14:22:42,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 02:22:42" (1/1) ... [2021-06-10 14:22:42,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7946e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:42, skipping insertion in model container [2021-06-10 14:22:42,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 02:22:42" (1/1) ... [2021-06-10 14:22:42,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 14:22:42,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 14:22:43,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 14:22:43,037 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 14:22:43,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 14:22:43,064 INFO L208 MainTranslator]: Completed translation [2021-06-10 14:22:43,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43 WrapperNode [2021-06-10 14:22:43,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 14:22:43,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 14:22:43,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 14:22:43,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 14:22:43,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... [2021-06-10 14:22:43,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... [2021-06-10 14:22:43,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 14:22:43,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 14:22:43,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 14:22:43,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 14:22:43,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... [2021-06-10 14:22:43,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... [2021-06-10 14:22:43,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... [2021-06-10 14:22:43,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... [2021-06-10 14:22:43,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... [2021-06-10 14:22:43,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... [2021-06-10 14:22:43,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... [2021-06-10 14:22:43,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 14:22:43,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 14:22:43,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 14:22:43,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 14:22:43,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 14:22:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 14:22:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 14:22:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 14:22:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-10 14:22:43,203 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-10 14:22:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 14:22:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 14:22:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 14:22:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 14:22:43,206 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 14:22:43,646 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 14:22:43,646 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-10 14:22:43,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:22:43 BoogieIcfgContainer [2021-06-10 14:22:43,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 14:22:43,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 14:22:43,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 14:22:43,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 14:22:43,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 02:22:42" (1/3) ... [2021-06-10 14:22:43,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28274e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:22:43, skipping insertion in model container [2021-06-10 14:22:43,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:43" (2/3) ... [2021-06-10 14:22:43,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28274e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:22:43, skipping insertion in model container [2021-06-10 14:22:43,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:22:43" (3/3) ... [2021-06-10 14:22:43,654 INFO L111 eAbstractionObserver]: Analyzing ICFG 18-conditional-atomic.c [2021-06-10 14:22:43,658 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 14:22:43,662 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 14:22:43,663 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 14:22:43,679 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,679 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,679 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,680 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,681 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,681 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,681 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,681 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,681 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,681 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,681 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,682 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,682 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,682 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,682 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,683 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,683 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,683 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,684 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,684 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,684 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,684 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,686 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,686 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,686 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,686 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,687 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,687 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,687 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,687 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:43,689 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 14:22:43,705 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-10 14:22:43,720 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 14:22:43,720 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 14:22:43,720 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 14:22:43,721 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 14:22:43,721 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 14:22:43,721 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 14:22:43,721 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 14:22:43,721 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 14:22:43,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions, 53 flow [2021-06-10 14:22:43,759 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-06-10 14:22:43,759 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:22:43,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-10 14:22:43,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 24 transitions, 53 flow [2021-06-10 14:22:43,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2021-06-10 14:22:43,773 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-10 14:22:43,774 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:22:43,774 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:22:43,774 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:22:43,775 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:22:43,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:22:43,782 INFO L82 PathProgramCache]: Analyzing trace with hash -79539314, now seen corresponding path program 1 times [2021-06-10 14:22:43,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:22:43,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391708919] [2021-06-10 14:22:43,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:22:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:22:43,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:22:43,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:22:43,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:22:43,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:22:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 14:22:43,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391708919] [2021-06-10 14:22:43,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:22:43,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 14:22:43,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292286791] [2021-06-10 14:22:43,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 14:22:43,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:22:43,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 14:22:43,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 14:22:43,958 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 24 [2021-06-10 14:22:43,961 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:43,961 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:22:43,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 24 [2021-06-10 14:22:43,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:22:43,988 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-06-10 14:22:43,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:22:43,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-10 14:22:43,990 INFO L132 encePairwiseOnDemand]: 21/24 looper letters, 1 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2021-06-10 14:22:43,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 45 flow [2021-06-10 14:22:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 14:22:43,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 14:22:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2021-06-10 14:22:44,001 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-06-10 14:22:44,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 64 transitions. [2021-06-10 14:22:44,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 64 transitions. [2021-06-10 14:22:44,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:22:44,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 64 transitions. [2021-06-10 14:22:44,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:44,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:44,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:44,013 INFO L185 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 64 transitions. [2021-06-10 14:22:44,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 45 flow [2021-06-10 14:22:44,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 44 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 14:22:44,018 INFO L241 Difference]: Finished difference. Result has 24 places, 18 transitions, 46 flow [2021-06-10 14:22:44,020 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2021-06-10 14:22:44,025 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2021-06-10 14:22:44,025 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 46 flow [2021-06-10 14:22:44,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:44,025 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:22:44,026 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:22:44,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 14:22:44,026 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:22:44,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:22:44,027 INFO L82 PathProgramCache]: Analyzing trace with hash 873359469, now seen corresponding path program 1 times [2021-06-10 14:22:44,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:22:44,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683263271] [2021-06-10 14:22:44,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:22:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:22:44,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:22:44,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:22:44,069 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-06-10 14:22:44,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 14:22:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 14:22:44,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683263271] [2021-06-10 14:22:44,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:22:44,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 14:22:44,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162270897] [2021-06-10 14:22:44,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 14:22:44,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:22:44,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 14:22:44,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 14:22:44,079 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 24 [2021-06-10 14:22:44,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:44,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:22:44,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 24 [2021-06-10 14:22:44,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:22:44,089 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-10 14:22:44,089 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2021-06-10 14:22:44,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 17 events. 0/17 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-06-10 14:22:44,090 INFO L132 encePairwiseOnDemand]: 22/24 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2021-06-10 14:22:44,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 46 flow [2021-06-10 14:22:44,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 14:22:44,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 14:22:44,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2021-06-10 14:22:44,091 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-06-10 14:22:44,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 63 transitions. [2021-06-10 14:22:44,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 63 transitions. [2021-06-10 14:22:44,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:22:44,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 63 transitions. [2021-06-10 14:22:44,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:44,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:44,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:44,093 INFO L185 Difference]: Start difference. First operand has 24 places, 18 transitions, 46 flow. Second operand 3 states and 63 transitions. [2021-06-10 14:22:44,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 46 flow [2021-06-10 14:22:44,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 40 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 14:22:44,094 INFO L241 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2021-06-10 14:22:44,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2021-06-10 14:22:44,095 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2021-06-10 14:22:44,095 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2021-06-10 14:22:44,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 14:22:44,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 14:22:44,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 02:22:44 BasicIcfg [2021-06-10 14:22:44,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 14:22:44,101 INFO L168 Benchmark]: Toolchain (without parser) took 1262.00 ms. Allocated memory is still 348.1 MB. Free memory was 309.9 MB in the beginning and 268.0 MB in the end (delta: 41.9 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:44,101 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 348.1 MB. Free memory was 328.3 MB in the beginning and 328.3 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:22:44,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.09 ms. Allocated memory is still 348.1 MB. Free memory was 309.7 MB in the beginning and 329.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:44,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.75 ms. Allocated memory is still 348.1 MB. Free memory was 329.8 MB in the beginning and 328.8 MB in the end (delta: 983.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:22:44,103 INFO L168 Benchmark]: Boogie Preprocessor took 28.54 ms. Allocated memory is still 348.1 MB. Free memory was 328.8 MB in the beginning and 327.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:44,104 INFO L168 Benchmark]: RCFGBuilder took 518.82 ms. Allocated memory is still 348.1 MB. Free memory was 327.7 MB in the beginning and 299.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:44,104 INFO L168 Benchmark]: TraceAbstraction took 450.65 ms. Allocated memory is still 348.1 MB. Free memory was 299.4 MB in the beginning and 268.0 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:44,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 348.1 MB. Free memory was 328.3 MB in the beginning and 328.3 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 228.09 ms. Allocated memory is still 348.1 MB. Free memory was 309.7 MB in the beginning and 329.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.75 ms. Allocated memory is still 348.1 MB. Free memory was 329.8 MB in the beginning and 328.8 MB in the end (delta: 983.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.54 ms. Allocated memory is still 348.1 MB. Free memory was 328.8 MB in the beginning and 327.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 518.82 ms. Allocated memory is still 348.1 MB. Free memory was 327.7 MB in the beginning and 299.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 450.65 ms. Allocated memory is still 348.1 MB. Free memory was 299.4 MB in the beginning and 268.0 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 379.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 90.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 44.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.8ms SsaConstructionTime, 30.1ms SatisfiabilityAnalysisTime, 99.2ms InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 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...