/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:02:25,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:02:25,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:02:25,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-01-06 23:02:25,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:02:25,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:02:25,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:02:25,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:02:25,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:02:25,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:02:25,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:02:25,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:02:25,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:02:25,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:02:25,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:02:25,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:02:25,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:02:25,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:02:25,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:02:25,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:02:25,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 23:02:25,811 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:02:25,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:02:25,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:02:25,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:02:25,817 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:02:25,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:02:25,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:02:25,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:02:25,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:02:25,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:02:25,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:02:25,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:02:25,819 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:02:25,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:02:25,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:02:25,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:02:25,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:02:25,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:02:25,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:02:25,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:02:25,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:02:25,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:02:25,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:02:25,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:02:25,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:02:25,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:02:26,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:02:26,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:02:26,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:02:26,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:02:26,263 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:02:26,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/17_szymanski.i [2021-01-06 23:02:26,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ca07a7b87/26286600161e47caa609e0ccd3c98b52/FLAG666aa2f77 [2021-01-06 23:02:27,097 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:02:27,098 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-ext/17_szymanski.i [2021-01-06 23:02:27,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ca07a7b87/26286600161e47caa609e0ccd3c98b52/FLAG666aa2f77 [2021-01-06 23:02:27,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ca07a7b87/26286600161e47caa609e0ccd3c98b52 [2021-01-06 23:02:27,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:02:27,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:02:27,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:02:27,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:02:27,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:02:27,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:02:27" (1/1) ... [2021-01-06 23:02:27,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ebcbc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:27, skipping insertion in model container [2021-01-06 23:02:27,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:02:27" (1/1) ... [2021-01-06 23:02:27,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:02:27,465 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] [2021-01-06 23:02:27,952 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-ext/17_szymanski.i[30132,30145] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] [2021-01-06 23:02:27,966 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-ext/17_szymanski.i[30481,30494] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] [2021-01-06 23:02:27,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:02:27,990 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] [2021-01-06 23:02:28,072 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-ext/17_szymanski.i[30132,30145] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] [2021-01-06 23:02:28,080 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-ext/17_szymanski.i[30481,30494] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] [2021-01-06 23:02:28,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:02:28,196 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:02:28,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28 WrapperNode [2021-01-06 23:02:28,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:02:28,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:02:28,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:02:28,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:02:28,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... [2021-01-06 23:02:28,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... [2021-01-06 23:02:28,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:02:28,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:02:28,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:02:28,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:02:28,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... [2021-01-06 23:02:28,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... [2021-01-06 23:02:28,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... [2021-01-06 23:02:28,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... [2021-01-06 23:02:28,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... [2021-01-06 23:02:28,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... [2021-01-06 23:02:28,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... [2021-01-06 23:02:28,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:02:28,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:02:28,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:02:28,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:02:28,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:02:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-01-06 23:02:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-01-06 23:02:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:02:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:02:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:02:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:02:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:02:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:02:28,532 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-06 23:02:29,054 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:02:29,054 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-01-06 23:02:29,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:02:29 BoogieIcfgContainer [2021-01-06 23:02:29,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:02:29,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:02:29,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:02:29,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:02:29,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:02:27" (1/3) ... [2021-01-06 23:02:29,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e644a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:02:29, skipping insertion in model container [2021-01-06 23:02:29,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:02:28" (2/3) ... [2021-01-06 23:02:29,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e644a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:02:29, skipping insertion in model container [2021-01-06 23:02:29,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:02:29" (3/3) ... [2021-01-06 23:02:29,066 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2021-01-06 23:02:29,073 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:02:29,073 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:02:29,079 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-06 23:02:29,080 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:02:29,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:02:29,119 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:02:29,139 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:02:29,162 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:02:29,162 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:02:29,162 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:02:29,163 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:02:29,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:02:29,163 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:02:29,163 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:02:29,163 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:02:29,176 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:02:29,179 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 88 transitions, 181 flow [2021-01-06 23:02:29,182 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 88 transitions, 181 flow [2021-01-06 23:02:29,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 88 transitions, 181 flow [2021-01-06 23:02:29,239 INFO L129 PetriNetUnfolder]: 24/87 cut-off events. [2021-01-06 23:02:29,240 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:02:29,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 24/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 72. Up to 3 conditions per place. [2021-01-06 23:02:29,265 INFO L116 LiptonReduction]: Number of co-enabled transitions 2542 [2021-01-06 23:02:31,164 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-01-06 23:02:31,267 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-01-06 23:02:31,451 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-01-06 23:02:31,550 INFO L131 LiptonReduction]: Checked pairs total: 4971 [2021-01-06 23:02:31,550 INFO L133 LiptonReduction]: Total number of compositions: 49 [2021-01-06 23:02:31,557 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 51 transitions, 107 flow [2021-01-06 23:02:31,579 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2021-01-06 23:02:31,581 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2021-01-06 23:02:31,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:02:31,590 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:02:31,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:02:31,591 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:02:31,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:02:31,597 INFO L82 PathProgramCache]: Analyzing trace with hash 2012510747, now seen corresponding path program 1 times [2021-01-06 23:02:31,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:02:31,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368681375] [2021-01-06 23:02:31,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:02:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:02:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:02:31,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368681375] [2021-01-06 23:02:31,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:02:31,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:02:31,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756193681] [2021-01-06 23:02:31,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:02:31,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:02:31,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:02:31,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:02:31,803 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2021-01-06 23:02:31,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:02:31,831 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2021-01-06 23:02:31,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:02:31,832 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-01-06 23:02:31,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:02:31,854 INFO L225 Difference]: With dead ends: 198 [2021-01-06 23:02:31,855 INFO L226 Difference]: Without dead ends: 198 [2021-01-06 23:02:31,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:02:31,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-01-06 23:02:31,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-01-06 23:02:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-01-06 23:02:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2021-01-06 23:02:31,959 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2021-01-06 23:02:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:02:31,959 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2021-01-06 23:02:31,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:02:31,959 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2021-01-06 23:02:31,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 23:02:31,963 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:02:31,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:02:31,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:02:31,963 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:02:31,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:02:31,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1380149915, now seen corresponding path program 1 times [2021-01-06 23:02:31,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:02:31,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64573853] [2021-01-06 23:02:31,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:02:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:02:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:02:32,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64573853] [2021-01-06 23:02:32,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:02:32,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:02:32,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479610374] [2021-01-06 23:02:32,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:02:32,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:02:32,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:02:32,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,101 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2021-01-06 23:02:32,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:02:32,151 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2021-01-06 23:02:32,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:02:32,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2021-01-06 23:02:32,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:02:32,159 INFO L225 Difference]: With dead ends: 362 [2021-01-06 23:02:32,159 INFO L226 Difference]: Without dead ends: 362 [2021-01-06 23:02:32,165 INFO L677 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 [2021-01-06 23:02:32,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-01-06 23:02:32,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2021-01-06 23:02:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2021-01-06 23:02:32,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2021-01-06 23:02:32,202 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2021-01-06 23:02:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:02:32,202 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2021-01-06 23:02:32,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:02:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2021-01-06 23:02:32,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 23:02:32,204 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:02:32,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:02:32,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:02:32,205 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:02:32,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:02:32,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1068535658, now seen corresponding path program 1 times [2021-01-06 23:02:32,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:02:32,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420785726] [2021-01-06 23:02:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:02:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:02:32,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:02:32,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420785726] [2021-01-06 23:02:32,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:02:32,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:02:32,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578775942] [2021-01-06 23:02:32,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:02:32,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:02:32,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:02:32,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,298 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2021-01-06 23:02:32,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:02:32,328 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2021-01-06 23:02:32,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:02:32,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2021-01-06 23:02:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:02:32,335 INFO L225 Difference]: With dead ends: 348 [2021-01-06 23:02:32,335 INFO L226 Difference]: Without dead ends: 348 [2021-01-06 23:02:32,336 INFO L677 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 [2021-01-06 23:02:32,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-01-06 23:02:32,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2021-01-06 23:02:32,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2021-01-06 23:02:32,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2021-01-06 23:02:32,375 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2021-01-06 23:02:32,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:02:32,375 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2021-01-06 23:02:32,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:02:32,375 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2021-01-06 23:02:32,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:02:32,380 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:02:32,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:02:32,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:02:32,380 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:02:32,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:02:32,381 INFO L82 PathProgramCache]: Analyzing trace with hash 979559035, now seen corresponding path program 1 times [2021-01-06 23:02:32,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:02:32,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260555496] [2021-01-06 23:02:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:02:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:02:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:02:32,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260555496] [2021-01-06 23:02:32,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:02:32,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:02:32,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206501161] [2021-01-06 23:02:32,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:02:32,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:02:32,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:02:32,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,456 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 3 states. [2021-01-06 23:02:32,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:02:32,515 INFO L93 Difference]: Finished difference Result 238 states and 595 transitions. [2021-01-06 23:02:32,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:02:32,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-01-06 23:02:32,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:02:32,518 INFO L225 Difference]: With dead ends: 238 [2021-01-06 23:02:32,518 INFO L226 Difference]: Without dead ends: 238 [2021-01-06 23:02:32,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-01-06 23:02:32,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-01-06 23:02:32,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2021-01-06 23:02:32,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 595 transitions. [2021-01-06 23:02:32,533 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 595 transitions. Word has length 19 [2021-01-06 23:02:32,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:02:32,533 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 595 transitions. [2021-01-06 23:02:32,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:02:32,534 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 595 transitions. [2021-01-06 23:02:32,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:02:32,535 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:02:32,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:02:32,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:02:32,536 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:02:32,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:02:32,536 INFO L82 PathProgramCache]: Analyzing trace with hash 908200443, now seen corresponding path program 2 times [2021-01-06 23:02:32,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:02:32,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382694744] [2021-01-06 23:02:32,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:02:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:02:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:02:32,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382694744] [2021-01-06 23:02:32,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:02:32,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:02:32,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798520180] [2021-01-06 23:02:32,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:02:32,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:02:32,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:02:32,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,594 INFO L87 Difference]: Start difference. First operand 238 states and 595 transitions. Second operand 3 states. [2021-01-06 23:02:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:02:32,637 INFO L93 Difference]: Finished difference Result 246 states and 592 transitions. [2021-01-06 23:02:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:02:32,638 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-01-06 23:02:32,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:02:32,640 INFO L225 Difference]: With dead ends: 246 [2021-01-06 23:02:32,640 INFO L226 Difference]: Without dead ends: 245 [2021-01-06 23:02:32,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-01-06 23:02:32,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 243. [2021-01-06 23:02:32,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2021-01-06 23:02:32,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 584 transitions. [2021-01-06 23:02:32,653 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 584 transitions. Word has length 19 [2021-01-06 23:02:32,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:02:32,653 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 584 transitions. [2021-01-06 23:02:32,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:02:32,653 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 584 transitions. [2021-01-06 23:02:32,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:02:32,655 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:02:32,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:02:32,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:02:32,655 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:02:32,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:02:32,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1161819517, now seen corresponding path program 3 times [2021-01-06 23:02:32,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:02:32,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217946863] [2021-01-06 23:02:32,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:02:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:02:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:02:32,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217946863] [2021-01-06 23:02:32,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:02:32,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:02:32,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051418422] [2021-01-06 23:02:32,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:02:32,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:02:32,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:02:32,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,689 INFO L87 Difference]: Start difference. First operand 243 states and 584 transitions. Second operand 3 states. [2021-01-06 23:02:32,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:02:32,729 INFO L93 Difference]: Finished difference Result 241 states and 568 transitions. [2021-01-06 23:02:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:02:32,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-01-06 23:02:32,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:02:32,731 INFO L225 Difference]: With dead ends: 241 [2021-01-06 23:02:32,732 INFO L226 Difference]: Without dead ends: 241 [2021-01-06 23:02:32,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-01-06 23:02:32,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-01-06 23:02:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2021-01-06 23:02:32,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 568 transitions. [2021-01-06 23:02:32,745 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 568 transitions. Word has length 19 [2021-01-06 23:02:32,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:02:32,745 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 568 transitions. [2021-01-06 23:02:32,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:02:32,745 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 568 transitions. [2021-01-06 23:02:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:02:32,746 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:02:32,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:02:32,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:02:32,747 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:02:32,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:02:32,748 INFO L82 PathProgramCache]: Analyzing trace with hash 853429251, now seen corresponding path program 4 times [2021-01-06 23:02:32,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:02:32,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834749913] [2021-01-06 23:02:32,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:02:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:02:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:02:32,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834749913] [2021-01-06 23:02:32,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:02:32,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:02:32,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702961667] [2021-01-06 23:02:32,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:02:32,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:02:32,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:02:32,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,780 INFO L87 Difference]: Start difference. First operand 241 states and 568 transitions. Second operand 3 states. [2021-01-06 23:02:32,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:02:32,819 INFO L93 Difference]: Finished difference Result 193 states and 455 transitions. [2021-01-06 23:02:32,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:02:32,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-01-06 23:02:32,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:02:32,820 INFO L225 Difference]: With dead ends: 193 [2021-01-06 23:02:32,820 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:02:32,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:02:32,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:02:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:02:32,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:02:32,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:02:32,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-01-06 23:02:32,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:02:32,822 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:02:32,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:02:32,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:02:32,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:02:32,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:02:32,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:02:32 BasicIcfg [2021-01-06 23:02:32,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:02:32,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:02:32,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:02:32,828 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:02:32,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:02:29" (3/4) ... [2021-01-06 23:02:32,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:02:32,840 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2021-01-06 23:02:32,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-01-06 23:02:32,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:02:32,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:02:32,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:02:32,901 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-ext/17_szymanski.i-witness.graphml [2021-01-06 23:02:32,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:02:32,903 INFO L168 Benchmark]: Toolchain (without parser) took 5495.77 ms. Allocated memory was 152.0 MB in the beginning and 211.8 MB in the end (delta: 59.8 MB). Free memory was 106.9 MB in the beginning and 96.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 8.0 GB. [2021-01-06 23:02:32,904 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:02:32,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.06 ms. Allocated memory is still 152.0 MB. Free memory was 106.6 MB in the beginning and 77.5 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2021-01-06 23:02:32,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.15 ms. Allocated memory is still 152.0 MB. Free memory was 77.5 MB in the beginning and 133.2 MB in the end (delta: -55.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-01-06 23:02:32,905 INFO L168 Benchmark]: Boogie Preprocessor took 70.20 ms. Allocated memory is still 152.0 MB. Free memory was 133.2 MB in the beginning and 131.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:02:32,906 INFO L168 Benchmark]: RCFGBuilder took 649.07 ms. Allocated memory is still 152.0 MB. Free memory was 131.9 MB in the beginning and 110.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:02:32,907 INFO L168 Benchmark]: TraceAbstraction took 3768.51 ms. Allocated memory was 152.0 MB in the beginning and 211.8 MB in the end (delta: 59.8 MB). Free memory was 109.8 MB in the beginning and 98.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 71.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:02:32,907 INFO L168 Benchmark]: Witness Printer took 73.55 ms. Allocated memory is still 211.8 MB. Free memory was 98.6 MB in the beginning and 96.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:02:32,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 790.06 ms. Allocated memory is still 152.0 MB. Free memory was 106.6 MB in the beginning and 77.5 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 135.15 ms. Allocated memory is still 152.0 MB. Free memory was 77.5 MB in the beginning and 133.2 MB in the end (delta: -55.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.20 ms. Allocated memory is still 152.0 MB. Free memory was 133.2 MB in the beginning and 131.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 649.07 ms. Allocated memory is still 152.0 MB. Free memory was 131.9 MB in the beginning and 110.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3768.51 ms. Allocated memory was 152.0 MB in the beginning and 211.8 MB in the end (delta: 59.8 MB). Free memory was 109.8 MB in the beginning and 98.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 71.9 MB. Max. memory is 8.0 GB. * Witness Printer took 73.55 ms. Allocated memory is still 211.8 MB. Free memory was 98.6 MB in the beginning and 96.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1204 VarBasedMoverChecksPositive, 63 VarBasedMoverChecksNegative, 36 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 192 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 68 PlacesBefore, 35 PlacesAfterwards, 88 TransitionsBefore, 51 TransitionsAfterwards, 2542 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 49 TotalNumberOfCompositions, 4971 MoverChecksTotal - PositiveResult [Line: 698]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 716]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 65 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 373 SDtfs, 154 SDslu, 139 SDs, 0 SdLazy, 98 SolverSat, 23 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=243occurred in iteration=5, 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, 273 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2104 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...