/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 07:11:30,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 07:11:30,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 07:11:30,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 07:11:30,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 07:11:30,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 07:11:30,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 07:11:30,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 07:11:30,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 07:11:30,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 07:11:30,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 07:11:30,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 07:11:30,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 07:11:30,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 07:11:30,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 07:11:30,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 07:11:30,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 07:11:30,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 07:11:30,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 07:11:30,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 07:11:30,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 07:11:30,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 07:11:30,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 07:11:30,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 07:11:30,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 07:11:30,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 07:11:30,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 07:11:30,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 07:11:30,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 07:11:30,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 07:11:30,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 07:11:30,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 07:11:30,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 07:11:30,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 07:11:30,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 07:11:30,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 07:11:30,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 07:11:30,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 07:11:30,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 07:11:30,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 07:11:30,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 07:11:30,951 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-RepeatedSemanticLbe.epf [2021-06-11 07:11:30,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 07:11:30,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 07:11:30,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 07:11:30,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 07:11:30,984 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 07:11:30,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 07:11:30,985 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 07:11:30,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 07:11:30,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 07:11:30,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 07:11:30,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 07:11:30,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 07:11:30,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 07:11:30,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 07:11:30,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 07:11:30,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 07:11:30,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 07:11:30,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 07:11:30,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 07:11:30,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 07:11:30,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 07:11:30,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 07:11:30,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 07:11:30,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 07:11:30,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 07:11:30,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 07:11:30,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 07:11:30,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 07:11:30,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 07:11:30,988 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 07:11:31,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 07:11:31,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 07:11:31,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 07:11:31,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 07:11:31,230 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 07:11:31,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-06-11 07:11:31,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9c78459/ad597437995f402db506b467dee1fb86/FLAGe87bde2c9 [2021-06-11 07:11:31,655 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 07:11:31,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-06-11 07:11:31,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9c78459/ad597437995f402db506b467dee1fb86/FLAGe87bde2c9 [2021-06-11 07:11:31,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9c78459/ad597437995f402db506b467dee1fb86 [2021-06-11 07:11:31,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 07:11:31,674 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 07:11:31,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 07:11:31,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 07:11:31,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 07:11:31,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 07:11:31" (1/1) ... [2021-06-11 07:11:31,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4196d145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:31, skipping insertion in model container [2021-06-11 07:11:31,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 07:11:31" (1/1) ... [2021-06-11 07:11:31,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 07:11:31,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 07:11:31,985 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-06-11 07:11:31,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 07:11:32,000 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 07:11:32,032 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-06-11 07:11:32,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 07:11:32,078 INFO L208 MainTranslator]: Completed translation [2021-06-11 07:11:32,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32 WrapperNode [2021-06-11 07:11:32,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 07:11:32,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 07:11:32,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 07:11:32,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 07:11:32,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (1/1) ... [2021-06-11 07:11:32,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (1/1) ... [2021-06-11 07:11:32,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 07:11:32,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 07:11:32,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 07:11:32,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 07:11:32,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (1/1) ... [2021-06-11 07:11:32,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (1/1) ... [2021-06-11 07:11:32,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (1/1) ... [2021-06-11 07:11:32,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (1/1) ... [2021-06-11 07:11:32,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (1/1) ... [2021-06-11 07:11:32,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (1/1) ... [2021-06-11 07:11:32,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (1/1) ... [2021-06-11 07:11:32,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 07:11:32,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 07:11:32,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 07:11:32,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 07:11:32,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (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 [2021-06-11 07:11:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-11 07:11:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-11 07:11:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-11 07:11:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-11 07:11:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 07:11:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 07:11:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 07:11:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 07:11:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 07:11:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 07:11:32,175 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 07:11:32,462 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 07:11:32,462 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-06-11 07:11:32,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:11:32 BoogieIcfgContainer [2021-06-11 07:11:32,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 07:11:32,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 07:11:32,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 07:11:32,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 07:11:32,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 07:11:31" (1/3) ... [2021-06-11 07:11:32,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9040bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:11:32, skipping insertion in model container [2021-06-11 07:11:32,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:11:32" (2/3) ... [2021-06-11 07:11:32,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9040bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:11:32, skipping insertion in model container [2021-06-11 07:11:32,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:11:32" (3/3) ... [2021-06-11 07:11:32,469 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2021-06-11 07:11:32,474 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 07:11:32,477 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 07:11:32,478 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 07:11:32,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,499 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,499 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,499 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,500 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,500 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,500 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,500 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,501 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,501 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,501 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,501 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,501 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,501 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,502 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,502 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,502 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,502 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,503 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,503 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,504 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,505 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,505 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,505 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,505 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,507 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,507 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,511 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,511 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,511 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:11:32,512 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 07:11:32,523 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 07:11:32,539 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 07:11:32,539 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 07:11:32,539 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 07:11:32,539 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 07:11:32,539 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 07:11:32,539 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 07:11:32,539 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 07:11:32,539 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 07:11:32,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 142 flow [2021-06-11 07:11:32,569 INFO L129 PetriNetUnfolder]: 4/76 cut-off events. [2021-06-11 07:11:32,569 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:11:32,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 106 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2021-06-11 07:11:32,572 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 66 transitions, 142 flow [2021-06-11 07:11:32,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 65 transitions, 138 flow [2021-06-11 07:11:32,575 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:11:32,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 65 transitions, 138 flow [2021-06-11 07:11:32,587 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 65 transitions, 138 flow [2021-06-11 07:11:32,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2021-06-11 07:11:32,599 INFO L129 PetriNetUnfolder]: 4/76 cut-off events. [2021-06-11 07:11:32,600 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:11:32,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 110 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2021-06-11 07:11:32,602 INFO L151 LiptonReduction]: Number of co-enabled transitions 742 [2021-06-11 07:11:32,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:32,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:11:32,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:11:32,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:32,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:32,997 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-06-11 07:11:33,001 INFO L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-06-11 07:11:33,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:33,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:11:33,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:11:33,444 INFO L142 QuantifierPusher]: treesize reduction 8, result has 33.3 percent of original size [2021-06-11 07:11:33,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:33,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:33,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 07:11:33,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:11:33,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:33,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:33,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 07:11:33,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 07:11:33,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:33,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 07:11:33,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 07:11:33,810 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.6 percent of original size [2021-06-11 07:11:33,812 INFO L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-06-11 07:11:33,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:33,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:33,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:33,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 07:11:33,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 07:11:33,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:34,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:11:34,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 07:11:34,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:11:34,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 07:11:34,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 07:11:34,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 07:11:34,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 07:11:34,524 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-06-11 07:11:34,754 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-06-11 07:11:34,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 07:11:34,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 07:11:34,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 07:11:34,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 07:11:34,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 07:11:34,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 07:11:34,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:11:34,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:34,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 07:11:34,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 07:11:35,216 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2021-06-11 07:11:35,320 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-06-11 07:11:35,323 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-06-11 07:11:35,323 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-11 07:11:35,345 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:11:35,349 INFO L163 LiptonReduction]: Checked pairs total: 606 [2021-06-11 07:11:35,349 INFO L165 LiptonReduction]: Total number of compositions: 66 [2021-06-11 07:11:35,351 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2777 [2021-06-11 07:11:35,358 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-06-11 07:11:35,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:11:35,358 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:11:35,359 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-06-11 07:11:35,359 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:11:35,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:11:35,363 INFO L82 PathProgramCache]: Analyzing trace with hash 261083, now seen corresponding path program 1 times [2021-06-11 07:11:35,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:11:35,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110437895] [2021-06-11 07:11:35,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:11:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:11:35,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:11:35,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:11:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:11:35,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110437895] [2021-06-11 07:11:35,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:11:35,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 07:11:35,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826354797] [2021-06-11 07:11:35,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 07:11:35,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:11:35,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 07:11:35,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 07:11:35,471 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 132 [2021-06-11 07:11:35,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2021-06-11 07:11:35,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:11:35,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 132 [2021-06-11 07:11:35,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:11:35,494 INFO L129 PetriNetUnfolder]: 18/46 cut-off events. [2021-06-11 07:11:35,494 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-06-11 07:11:35,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 46 events. 18/46 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 141 event pairs, 6 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 92. Up to 26 conditions per place. [2021-06-11 07:11:35,495 INFO L132 encePairwiseOnDemand]: 128/132 looper letters, 9 selfloop transitions, 2 changer transitions 0/15 dead transitions. [2021-06-11 07:11:35,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 15 transitions, 62 flow [2021-06-11 07:11:35,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 07:11:35,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 07:11:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2021-06-11 07:11:35,503 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2021-06-11 07:11:35,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2021-06-11 07:11:35,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2021-06-11 07:11:35,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:11:35,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2021-06-11 07:11:35,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2021-06-11 07:11:35,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2021-06-11 07:11:35,510 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2021-06-11 07:11:35,511 INFO L185 Difference]: Start difference. First operand has 18 places, 12 transitions, 32 flow. Second operand 3 states and 248 transitions. [2021-06-11 07:11:35,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 15 transitions, 62 flow [2021-06-11 07:11:35,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 15 transitions, 61 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 07:11:35,513 INFO L241 Difference]: Finished difference. Result has 19 places, 11 transitions, 37 flow [2021-06-11 07:11:35,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2021-06-11 07:11:35,515 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2021-06-11 07:11:35,515 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:11:35,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 11 transitions, 37 flow [2021-06-11 07:11:35,515 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 11 transitions, 37 flow [2021-06-11 07:11:35,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 11 transitions, 37 flow [2021-06-11 07:11:35,517 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-06-11 07:11:35,517 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:11:35,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 13 events. 0/13 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 13 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-11 07:11:35,518 INFO L151 LiptonReduction]: Number of co-enabled transitions 30 [2021-06-11 07:11:35,518 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 07:11:35,518 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:11:35,518 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-06-11 07:11:35,519 INFO L480 AbstractCegarLoop]: Abstraction has has 19 places, 11 transitions, 37 flow [2021-06-11 07:11:35,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2021-06-11 07:11:35,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:11:35,519 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:11:35,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 07:11:35,519 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:11:35,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:11:35,520 INFO L82 PathProgramCache]: Analyzing trace with hash 559648760, now seen corresponding path program 1 times [2021-06-11 07:11:35,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:11:35,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925193697] [2021-06-11 07:11:35,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:11:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 07:11:35,552 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 07:11:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 07:11:35,580 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 07:11:35,599 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-11 07:11:35,599 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-11 07:11:35,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 07:11:35,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 07:11:35 BasicIcfg [2021-06-11 07:11:35,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 07:11:35,629 INFO L168 Benchmark]: Toolchain (without parser) took 3952.98 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 323.1 MB in the beginning and 173.7 MB in the end (delta: 149.4 MB). Peak memory consumption was 223.2 MB. Max. memory is 16.0 GB. [2021-06-11 07:11:35,631 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 360.7 MB. Free memory was 340.9 MB in the beginning and 340.9 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 07:11:35,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.54 ms. Allocated memory is still 360.7 MB. Free memory was 322.9 MB in the beginning and 324.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-06-11 07:11:35,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.43 ms. Allocated memory is still 360.7 MB. Free memory was 324.7 MB in the beginning and 322.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 07:11:35,634 INFO L168 Benchmark]: Boogie Preprocessor took 12.42 ms. Allocated memory is still 360.7 MB. Free memory was 322.6 MB in the beginning and 321.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 07:11:35,636 INFO L168 Benchmark]: RCFGBuilder took 349.01 ms. Allocated memory is still 360.7 MB. Free memory was 321.5 MB in the beginning and 297.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 07:11:35,637 INFO L168 Benchmark]: TraceAbstraction took 3161.46 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 297.4 MB in the beginning and 173.7 MB in the end (delta: 123.7 MB). Peak memory consumption was 199.2 MB. Max. memory is 16.0 GB. [2021-06-11 07:11:35,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 360.7 MB. Free memory was 340.9 MB in the beginning and 340.9 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 403.54 ms. Allocated memory is still 360.7 MB. Free memory was 322.9 MB in the beginning and 324.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.43 ms. Allocated memory is still 360.7 MB. Free memory was 324.7 MB in the beginning and 322.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.42 ms. Allocated memory is still 360.7 MB. Free memory was 322.6 MB in the beginning and 321.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 349.01 ms. Allocated memory is still 360.7 MB. Free memory was 321.5 MB in the beginning and 297.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3161.46 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 297.4 MB in the beginning and 173.7 MB in the end (delta: 123.7 MB). Peak memory consumption was 199.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2762.2ms, 68 PlacesBefore, 18 PlacesAfterwards, 65 TransitionsBefore, 12 TransitionsAfterwards, 742 CoEnabledTransitionPairs, 7 FixpointIterations, 28 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 66 TotalNumberOfCompositions, 606 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 565, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 480, positive: 476, positive conditional: 0, positive unconditional: 476, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 480, positive: 476, positive conditional: 0, positive unconditional: 476, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 480, positive: 476, positive conditional: 0, positive unconditional: 476, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 565, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 480, unknown conditional: 0, unknown unconditional: 480] , Statistics on independence cache: Total cache size (in pairs): 874, Positive cache size: 870, Positive conditional cache size: 0, Positive unconditional cache size: 870, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7ms, 19 PlacesBefore, 19 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 874, Positive cache size: 870, Positive conditional cache size: 0, Positive unconditional cache size: 870, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int x; [L698] 0 volatile int n; [L710] 0 pthread_t t1, t2; [L711] 0 int i; [L712] 0 x = 0 [L713] 0 n = __VERIFIER_nondet_int() [L686] COND FALSE 0 !(!cond) [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L716] 0 i = 0 VAL [n=1, x=0] [L716] COND TRUE 0 i < n [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L704] 2 int t; [L705] 2 t = x [L706] 2 x = t + 1 [L707] 2 return 0; [L689] COND TRUE 1 !(cond) [L690] 1 reach_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 3066.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 47.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2817.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=1, InterpolantAutomatonStates: 3, 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: 5.4ms SsaConstructionTime, 35.5ms SatisfiabilityAnalysisTime, 39.6ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 incorrect! Received shutdown request...