/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:22:02,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:22:02,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:22:02,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:22:02,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:22:02,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:22:02,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:22:02,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:22:02,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:22:02,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:22:02,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:22:02,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:22:02,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:22:02,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:22:02,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:22:02,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:22:02,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:22:02,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:22:02,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:22:02,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:22:02,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:22:02,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:22:02,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:22:02,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:22:02,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:22:02,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:22:02,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:22:02,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:22:02,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:22:02,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:22:02,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:22:02,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:22:02,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:22:02,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:22:02,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:22:02,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:22:02,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:22:02,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:22:02,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:22:02,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:22:02,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:22:02,957 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:22:02,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:22:02,958 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:22:02,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:22:02,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:22:02,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:22:02,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:22:02,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:22:02,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:22:02,960 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:22:02,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:22:02,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:22:02,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:22:02,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:22:02,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:22:02,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:22:02,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:22:02,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:22:02,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:22:02,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:22:02,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:22:02,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:22:02,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:22:02,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:22:02,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:22:02,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:22:03,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:22:03,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:22:03,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:22:03,294 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:22:03,295 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:22:03,296 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-05 22:22:03,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9efccf190/b33a5c0b895c461a8c2a54c8a606d870/FLAG2768dbd12 [2020-10-05 22:22:03,893 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:22:03,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-05 22:22:03,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9efccf190/b33a5c0b895c461a8c2a54c8a606d870/FLAG2768dbd12 [2020-10-05 22:22:04,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9efccf190/b33a5c0b895c461a8c2a54c8a606d870 [2020-10-05 22:22:04,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:22:04,201 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:22:04,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:22:04,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:22:04,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:22:04,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9f1c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04, skipping insertion in model container [2020-10-05 22:22:04,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:22:04,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:22:04,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:22:04,721 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:22:04,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:22:04,876 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:22:04,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04 WrapperNode [2020-10-05 22:22:04,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:22:04,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:22:04,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:22:04,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:22:04,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:22:04,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:22:04,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:22:04,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:22:04,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (1/1) ... [2020-10-05 22:22:04,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:22:04,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:22:04,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:22:04,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:22:04,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (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 [2020-10-05 22:22:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-05 22:22:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-05 22:22:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-05 22:22:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-05 22:22:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-05 22:22:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:22:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:22:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:22:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:22:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:22:05,038 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:22:05,414 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:22:05,414 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-05 22:22:05,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:22:05 BoogieIcfgContainer [2020-10-05 22:22:05,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:22:05,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:22:05,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:22:05,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:22:05,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:22:04" (1/3) ... [2020-10-05 22:22:05,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64699bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:22:05, skipping insertion in model container [2020-10-05 22:22:05,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:22:04" (2/3) ... [2020-10-05 22:22:05,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64699bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:22:05, skipping insertion in model container [2020-10-05 22:22:05,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:22:05" (3/3) ... [2020-10-05 22:22:05,425 INFO L109 eAbstractionObserver]: Analyzing ICFG szymanski.i [2020-10-05 22:22:05,435 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:22:05,435 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:22:05,443 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-05 22:22:05,444 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:22:05,470 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,471 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,471 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,471 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,472 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,473 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,474 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,474 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,480 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,487 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,487 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,487 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:05,515 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-05 22:22:05,535 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:22:05,535 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:22:05,536 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:22:05,536 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:22:05,536 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:22:05,536 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:22:05,537 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:22:05,537 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:22:05,553 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 87 transitions, 196 flow [2020-10-05 22:22:05,555 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow [2020-10-05 22:22:05,596 INFO L129 PetriNetUnfolder]: 21/87 cut-off events. [2020-10-05 22:22:05,596 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 22:22:05,603 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2020-10-05 22:22:05,607 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow [2020-10-05 22:22:05,634 INFO L129 PetriNetUnfolder]: 21/87 cut-off events. [2020-10-05 22:22:05,634 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 22:22:05,636 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2020-10-05 22:22:05,639 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2160 [2020-10-05 22:22:05,640 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:22:06,636 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4147 [2020-10-05 22:22:06,637 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2020-10-05 22:22:06,641 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 59 transitions, 140 flow [2020-10-05 22:22:06,681 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 509 states. [2020-10-05 22:22:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states. [2020-10-05 22:22:06,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:22:06,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:06,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:06,694 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:06,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:06,700 INFO L82 PathProgramCache]: Analyzing trace with hash -223988154, now seen corresponding path program 1 times [2020-10-05 22:22:06,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:06,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591308365] [2020-10-05 22:22:06,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:06,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591308365] [2020-10-05 22:22:06,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:06,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:22:06,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260877882] [2020-10-05 22:22:06,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:22:06,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:06,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:22:06,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:22:06,901 INFO L87 Difference]: Start difference. First operand 509 states. Second operand 2 states. [2020-10-05 22:22:06,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:06,943 INFO L93 Difference]: Finished difference Result 509 states and 1466 transitions. [2020-10-05 22:22:06,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:22:06,944 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-05 22:22:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:06,967 INFO L225 Difference]: With dead ends: 509 [2020-10-05 22:22:06,967 INFO L226 Difference]: Without dead ends: 470 [2020-10-05 22:22:06,968 INFO L675 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 [2020-10-05 22:22:06,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-05 22:22:07,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-10-05 22:22:07,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-05 22:22:07,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1363 transitions. [2020-10-05 22:22:07,067 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1363 transitions. Word has length 8 [2020-10-05 22:22:07,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:07,068 INFO L479 AbstractCegarLoop]: Abstraction has 470 states and 1363 transitions. [2020-10-05 22:22:07,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:22:07,068 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1363 transitions. [2020-10-05 22:22:07,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:22:07,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:07,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:07,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:22:07,071 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:07,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1417283260, now seen corresponding path program 1 times [2020-10-05 22:22:07,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:07,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924937376] [2020-10-05 22:22:07,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:07,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924937376] [2020-10-05 22:22:07,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:07,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:22:07,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957477304] [2020-10-05 22:22:07,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:07,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:07,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:07,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,161 INFO L87 Difference]: Start difference. First operand 470 states and 1363 transitions. Second operand 3 states. [2020-10-05 22:22:07,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:07,201 INFO L93 Difference]: Finished difference Result 481 states and 1359 transitions. [2020-10-05 22:22:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:07,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-05 22:22:07,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:07,207 INFO L225 Difference]: With dead ends: 481 [2020-10-05 22:22:07,207 INFO L226 Difference]: Without dead ends: 391 [2020-10-05 22:22:07,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-10-05 22:22:07,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373. [2020-10-05 22:22:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-05 22:22:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1071 transitions. [2020-10-05 22:22:07,238 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1071 transitions. Word has length 10 [2020-10-05 22:22:07,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:07,238 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 1071 transitions. [2020-10-05 22:22:07,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1071 transitions. [2020-10-05 22:22:07,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:22:07,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:07,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:07,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:22:07,242 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:07,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:07,243 INFO L82 PathProgramCache]: Analyzing trace with hash -2015895147, now seen corresponding path program 1 times [2020-10-05 22:22:07,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:07,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176765356] [2020-10-05 22:22:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:07,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:07,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176765356] [2020-10-05 22:22:07,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:07,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:22:07,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689407736] [2020-10-05 22:22:07,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:07,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:07,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:07,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,320 INFO L87 Difference]: Start difference. First operand 373 states and 1071 transitions. Second operand 3 states. [2020-10-05 22:22:07,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:07,354 INFO L93 Difference]: Finished difference Result 360 states and 1018 transitions. [2020-10-05 22:22:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:07,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-05 22:22:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:07,362 INFO L225 Difference]: With dead ends: 360 [2020-10-05 22:22:07,362 INFO L226 Difference]: Without dead ends: 264 [2020-10-05 22:22:07,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-05 22:22:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-10-05 22:22:07,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-05 22:22:07,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 749 transitions. [2020-10-05 22:22:07,393 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 749 transitions. Word has length 12 [2020-10-05 22:22:07,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:07,403 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 749 transitions. [2020-10-05 22:22:07,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:07,403 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 749 transitions. [2020-10-05 22:22:07,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:22:07,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:07,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:07,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:22:07,406 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:07,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:07,407 INFO L82 PathProgramCache]: Analyzing trace with hash 573136511, now seen corresponding path program 1 times [2020-10-05 22:22:07,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:07,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852680148] [2020-10-05 22:22:07,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:07,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:07,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852680148] [2020-10-05 22:22:07,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:07,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:22:07,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931338729] [2020-10-05 22:22:07,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:07,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:07,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:07,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,495 INFO L87 Difference]: Start difference. First operand 264 states and 749 transitions. Second operand 3 states. [2020-10-05 22:22:07,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:07,548 INFO L93 Difference]: Finished difference Result 292 states and 809 transitions. [2020-10-05 22:22:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:07,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-05 22:22:07,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:07,552 INFO L225 Difference]: With dead ends: 292 [2020-10-05 22:22:07,552 INFO L226 Difference]: Without dead ends: 280 [2020-10-05 22:22:07,553 INFO L675 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 [2020-10-05 22:22:07,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-05 22:22:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-10-05 22:22:07,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-05 22:22:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 773 transitions. [2020-10-05 22:22:07,565 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 773 transitions. Word has length 19 [2020-10-05 22:22:07,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:07,565 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 773 transitions. [2020-10-05 22:22:07,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 773 transitions. [2020-10-05 22:22:07,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:22:07,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:07,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:07,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:22:07,575 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:07,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:07,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1551241601, now seen corresponding path program 2 times [2020-10-05 22:22:07,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:07,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097229969] [2020-10-05 22:22:07,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:07,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097229969] [2020-10-05 22:22:07,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:07,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:22:07,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735614827] [2020-10-05 22:22:07,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:07,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:07,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:07,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,629 INFO L87 Difference]: Start difference. First operand 280 states and 773 transitions. Second operand 3 states. [2020-10-05 22:22:07,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:07,666 INFO L93 Difference]: Finished difference Result 312 states and 828 transitions. [2020-10-05 22:22:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:07,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-05 22:22:07,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:07,668 INFO L225 Difference]: With dead ends: 312 [2020-10-05 22:22:07,668 INFO L226 Difference]: Without dead ends: 230 [2020-10-05 22:22:07,669 INFO L675 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 [2020-10-05 22:22:07,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-05 22:22:07,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2020-10-05 22:22:07,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-05 22:22:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 555 transitions. [2020-10-05 22:22:07,677 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 555 transitions. Word has length 19 [2020-10-05 22:22:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:07,677 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 555 transitions. [2020-10-05 22:22:07,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 555 transitions. [2020-10-05 22:22:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:22:07,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:07,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:07,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:22:07,679 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:07,679 INFO L82 PathProgramCache]: Analyzing trace with hash 926221059, now seen corresponding path program 3 times [2020-10-05 22:22:07,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:07,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501921914] [2020-10-05 22:22:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:07,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501921914] [2020-10-05 22:22:07,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:07,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:22:07,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894418405] [2020-10-05 22:22:07,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:07,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:07,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:07,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,712 INFO L87 Difference]: Start difference. First operand 226 states and 555 transitions. Second operand 3 states. [2020-10-05 22:22:07,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:07,742 INFO L93 Difference]: Finished difference Result 210 states and 499 transitions. [2020-10-05 22:22:07,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:07,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-05 22:22:07,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:07,745 INFO L225 Difference]: With dead ends: 210 [2020-10-05 22:22:07,745 INFO L226 Difference]: Without dead ends: 210 [2020-10-05 22:22:07,745 INFO L675 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 [2020-10-05 22:22:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-05 22:22:07,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2020-10-05 22:22:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-05 22:22:07,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 499 transitions. [2020-10-05 22:22:07,752 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 499 transitions. Word has length 19 [2020-10-05 22:22:07,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:07,753 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 499 transitions. [2020-10-05 22:22:07,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:07,753 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 499 transitions. [2020-10-05 22:22:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:22:07,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:07,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:07,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:22:07,755 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:07,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:07,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1185214475, now seen corresponding path program 4 times [2020-10-05 22:22:07,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:07,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365002962] [2020-10-05 22:22:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:07,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365002962] [2020-10-05 22:22:07,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:07,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:22:07,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540146361] [2020-10-05 22:22:07,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:07,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:07,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:07,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,794 INFO L87 Difference]: Start difference. First operand 210 states and 499 transitions. Second operand 3 states. [2020-10-05 22:22:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:07,816 INFO L93 Difference]: Finished difference Result 160 states and 390 transitions. [2020-10-05 22:22:07,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:07,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-05 22:22:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:07,817 INFO L225 Difference]: With dead ends: 160 [2020-10-05 22:22:07,818 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:22:07,818 INFO L675 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 [2020-10-05 22:22:07,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:22:07,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:22:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:22:07,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:22:07,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-05 22:22:07,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:07,819 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:22:07,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:07,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:22:07,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:22:07,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:22:07,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:22:07 BasicIcfg [2020-10-05 22:22:07,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:22:07,827 INFO L168 Benchmark]: Toolchain (without parser) took 3624.35 ms. Allocated memory was 141.0 MB in the beginning and 245.9 MB in the end (delta: 104.9 MB). Free memory was 102.9 MB in the beginning and 138.5 MB in the end (delta: -35.6 MB). Peak memory consumption was 69.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:07,828 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:22:07,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.89 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 164.9 MB in the end (delta: -62.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:07,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.57 ms. Allocated memory is still 204.5 MB. Free memory was 164.9 MB in the beginning and 163.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:07,830 INFO L168 Benchmark]: Boogie Preprocessor took 30.37 ms. Allocated memory is still 204.5 MB. Free memory was 163.0 MB in the beginning and 161.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:07,831 INFO L168 Benchmark]: RCFGBuilder took 463.42 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 139.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:07,832 INFO L168 Benchmark]: TraceAbstraction took 2406.62 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 138.4 MB in the beginning and 138.5 MB in the end (delta: -149.8 kB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:07,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 674.89 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 164.9 MB in the end (delta: -62.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.57 ms. Allocated memory is still 204.5 MB. Free memory was 164.9 MB in the beginning and 163.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.37 ms. Allocated memory is still 204.5 MB. Free memory was 163.0 MB in the beginning and 161.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 463.42 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 139.0 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2406.62 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 138.4 MB in the beginning and 138.5 MB in the end (delta: -149.8 kB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 72 ProgramPointsBefore, 46 ProgramPointsAfterwards, 87 TransitionsBefore, 59 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 686 VarBasedMoverChecksPositive, 97 VarBasedMoverChecksNegative, 75 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 4147 CheckedPairsTotal, 38 TotalNumberOfCompositions - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: 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, 66 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 367 SDtfs, 133 SDslu, 141 SDs, 0 SdLazy, 82 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...