/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 22:47:14,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 22:47:14,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 22:47:14,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-17 22:47:14,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 22:47:14,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 22:47:14,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 22:47:15,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-17 22:47:15,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 22:47:15,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 22:47:15,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 22:47:15,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 22:47:15,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 22:47:15,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 22:47:15,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 22:47:15,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 22:47:15,021 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 22:47:15,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 22:47:15,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 22:47:15,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 22:47:15,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 22:47:15,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 22:47:15,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 22:47:15,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 22:47:15,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 22:47:15,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 22:47:15,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 22:47:15,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 22:47:15,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 22:47:15,027 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 22:47:15,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 22:47:15,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 22:47:15,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 22:47:15,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 22:47:15,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 22:47:15,203 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 22:47:15,203 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 22:47:15,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2022-01-17 22:47:15,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/843ed17fd/bfc53ff779f747a584f146529949a2eb/FLAG881c29250 [2022-01-17 22:47:15,638 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 22:47:15,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2022-01-17 22:47:15,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/843ed17fd/bfc53ff779f747a584f146529949a2eb/FLAG881c29250 [2022-01-17 22:47:15,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/843ed17fd/bfc53ff779f747a584f146529949a2eb [2022-01-17 22:47:15,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 22:47:15,663 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 22:47:15,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 22:47:15,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 22:47:15,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 22:47:15,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:15,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c59a30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15, skipping insertion in model container [2022-01-17 22:47:15,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:15,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 22:47:15,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 22:47:15,841 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-17 22:47:15,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2022-01-17 22:47:15,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 22:47:15,915 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 22:47:15,925 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-17 22:47:15,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2022-01-17 22:47:15,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 22:47:15,976 INFO L208 MainTranslator]: Completed translation [2022-01-17 22:47:15,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15 WrapperNode [2022-01-17 22:47:15,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 22:47:15,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 22:47:15,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 22:47:15,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 22:47:15,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,023 INFO L137 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2022-01-17 22:47:16,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 22:47:16,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 22:47:16,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 22:47:16,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 22:47:16,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 22:47:16,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 22:47:16,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 22:47:16,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 22:47:16,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (1/1) ... [2022-01-17 22:47:16,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 22:47:16,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 22:47:16,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-17 22:47:16,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-17 22:47:16,109 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-17 22:47:16,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-17 22:47:16,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 22:47:16,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-17 22:47:16,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 22:47:16,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 22:47:16,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 22:47:16,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 22:47:16,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-17 22:47:16,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 22:47:16,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 22:47:16,112 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 22:47:16,231 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 22:47:16,232 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 22:47:16,324 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 22:47:16,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 22:47:16,349 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-17 22:47:16,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 10:47:16 BoogieIcfgContainer [2022-01-17 22:47:16,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 22:47:16,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 22:47:16,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 22:47:16,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 22:47:16,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 10:47:15" (1/3) ... [2022-01-17 22:47:16,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe33f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 10:47:16, skipping insertion in model container [2022-01-17 22:47:16,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 10:47:15" (2/3) ... [2022-01-17 22:47:16,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe33f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 10:47:16, skipping insertion in model container [2022-01-17 22:47:16,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 10:47:16" (3/3) ... [2022-01-17 22:47:16,355 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2022-01-17 22:47:16,359 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 22:47:16,359 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 22:47:16,359 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-17 22:47:16,359 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 22:47:16,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,379 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,379 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,379 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 22:47:16,379 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-17 22:47:16,407 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 22:47:16,411 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-17 22:47:16,411 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-17 22:47:16,418 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 57 transitions, 119 flow [2022-01-17 22:47:16,435 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 126 states, 125 states have (on average 1.672) internal successors, (209), 125 states have internal predecessors, (209), 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) [2022-01-17 22:47:16,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 125 states have (on average 1.672) internal successors, (209), 125 states have internal predecessors, (209), 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) [2022-01-17 22:47:16,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-17 22:47:16,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 22:47:16,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 22:47:16,443 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 22:47:16,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 22:47:16,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2066246596, now seen corresponding path program 1 times [2022-01-17 22:47:16,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 22:47:16,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30231873] [2022-01-17 22:47:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 22:47:16,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 22:47:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 22:47:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 22:47:16,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 22:47:16,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30231873] [2022-01-17 22:47:16,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30231873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 22:47:16,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 22:47:16,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 22:47:16,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440526559] [2022-01-17 22:47:16,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 22:47:16,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 22:47:16,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 22:47:16,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 22:47:16,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 22:47:16,617 INFO L87 Difference]: Start difference. First operand has 126 states, 125 states have (on average 1.672) internal successors, (209), 125 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2022-01-17 22:47:16,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 22:47:16,692 INFO L93 Difference]: Finished difference Result 140 states and 224 transitions. [2022-01-17 22:47:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-17 22:47:16,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-17 22:47:16,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 22:47:16,700 INFO L225 Difference]: With dead ends: 140 [2022-01-17 22:47:16,700 INFO L226 Difference]: Without dead ends: 81 [2022-01-17 22:47:16,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-17 22:47:16,703 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 27 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 22:47:16,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 220 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 22:47:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-01-17 22:47:16,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-01-17 22:47:16,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.4875) internal successors, (119), 80 states have internal predecessors, (119), 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) [2022-01-17 22:47:16,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 119 transitions. [2022-01-17 22:47:16,729 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 119 transitions. Word has length 35 [2022-01-17 22:47:16,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 22:47:16,729 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 119 transitions. [2022-01-17 22:47:16,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2022-01-17 22:47:16,729 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 119 transitions. [2022-01-17 22:47:16,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-17 22:47:16,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 22:47:16,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 22:47:16,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 22:47:16,731 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 22:47:16,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 22:47:16,731 INFO L85 PathProgramCache]: Analyzing trace with hash 675027575, now seen corresponding path program 1 times [2022-01-17 22:47:16,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 22:47:16,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141067482] [2022-01-17 22:47:16,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 22:47:16,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 22:47:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 22:47:16,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 22:47:16,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 22:47:16,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141067482] [2022-01-17 22:47:16,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141067482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 22:47:16,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 22:47:16,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-17 22:47:16,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417895315] [2022-01-17 22:47:16,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 22:47:16,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-17 22:47:16,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 22:47:16,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-17 22:47:16,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-17 22:47:16,797 INFO L87 Difference]: Start difference. First operand 81 states and 119 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 22:47:16,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 22:47:16,805 INFO L93 Difference]: Finished difference Result 81 states and 115 transitions. [2022-01-17 22:47:16,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-17 22:47:16,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-17 22:47:16,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 22:47:16,806 INFO L225 Difference]: With dead ends: 81 [2022-01-17 22:47:16,806 INFO L226 Difference]: Without dead ends: 73 [2022-01-17 22:47:16,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-17 22:47:16,807 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 9 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 22:47:16,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 86 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 22:47:16,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-01-17 22:47:16,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-01-17 22:47:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4305555555555556) internal successors, (103), 72 states have internal predecessors, (103), 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) [2022-01-17 22:47:16,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 103 transitions. [2022-01-17 22:47:16,821 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 103 transitions. Word has length 38 [2022-01-17 22:47:16,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 22:47:16,821 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 103 transitions. [2022-01-17 22:47:16,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 22:47:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 103 transitions. [2022-01-17 22:47:16,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-17 22:47:16,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 22:47:16,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 22:47:16,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 22:47:16,822 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-17 22:47:16,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 22:47:16,823 INFO L85 PathProgramCache]: Analyzing trace with hash -473692839, now seen corresponding path program 2 times [2022-01-17 22:47:16,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 22:47:16,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626329148] [2022-01-17 22:47:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 22:47:16,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 22:47:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 22:47:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 22:47:16,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 22:47:16,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626329148] [2022-01-17 22:47:16,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626329148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 22:47:16,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 22:47:16,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-17 22:47:16,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226201328] [2022-01-17 22:47:16,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 22:47:16,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-17 22:47:16,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 22:47:16,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-17 22:47:16,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-17 22:47:16,872 INFO L87 Difference]: Start difference. First operand 73 states and 103 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 22:47:16,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 22:47:16,877 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2022-01-17 22:47:16,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-17 22:47:16,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-17 22:47:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 22:47:16,878 INFO L225 Difference]: With dead ends: 45 [2022-01-17 22:47:16,878 INFO L226 Difference]: Without dead ends: 0 [2022-01-17 22:47:16,878 INFO L932 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 [2022-01-17 22:47:16,879 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 22:47:16,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 62 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 22:47:16,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-17 22:47:16,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-17 22:47:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-01-17 22:47:16,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-17 22:47:16,880 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-01-17 22:47:16,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 22:47:16,880 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-17 22:47:16,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 22:47:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-17 22:47:16,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-17 22:47:16,883 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-17 22:47:16,883 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-17 22:47:16,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 22:47:16,885 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-01-17 22:47:16,886 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 22:47:16,886 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 22:47:16,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 10:47:16 BasicIcfg [2022-01-17 22:47:16,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 22:47:16,889 INFO L158 Benchmark]: Toolchain (without parser) took 1226.16ms. Allocated memory was 356.5MB in the beginning and 480.2MB in the end (delta: 123.7MB). Free memory was 301.1MB in the beginning and 376.8MB in the end (delta: -75.6MB). Peak memory consumption was 46.4MB. Max. memory is 16.0GB. [2022-01-17 22:47:16,890 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 356.5MB. Free memory was 319.6MB in the beginning and 319.5MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 22:47:16,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.05ms. Allocated memory was 356.5MB in the beginning and 480.2MB in the end (delta: 123.7MB). Free memory was 301.0MB in the beginning and 444.9MB in the end (delta: -143.9MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. [2022-01-17 22:47:16,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.15ms. Allocated memory is still 480.2MB. Free memory was 444.9MB in the beginning and 442.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 22:47:16,891 INFO L158 Benchmark]: Boogie Preprocessor took 26.81ms. Allocated memory is still 480.2MB. Free memory was 442.8MB in the beginning and 441.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 22:47:16,891 INFO L158 Benchmark]: RCFGBuilder took 298.53ms. Allocated memory is still 480.2MB. Free memory was 441.8MB in the beginning and 425.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-17 22:47:16,891 INFO L158 Benchmark]: TraceAbstraction took 537.55ms. Allocated memory is still 480.2MB. Free memory was 425.0MB in the beginning and 376.8MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.0GB. [2022-01-17 22:47:16,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 356.5MB. Free memory was 319.6MB in the beginning and 319.5MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 311.05ms. Allocated memory was 356.5MB in the beginning and 480.2MB in the end (delta: 123.7MB). Free memory was 301.0MB in the beginning and 444.9MB in the end (delta: -143.9MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.15ms. Allocated memory is still 480.2MB. Free memory was 444.9MB in the beginning and 442.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.81ms. Allocated memory is still 480.2MB. Free memory was 442.8MB in the beginning and 441.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 298.53ms. Allocated memory is still 480.2MB. Free memory was 441.8MB in the beginning and 425.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 537.55ms. Allocated memory is still 480.2MB. Free memory was 425.0MB in the beginning and 376.8MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 738]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 65 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 368 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 256 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 132 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-17 22:47:16,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...