/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 14:57:08,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 14:57:08,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 14:57:08,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 14:57:08,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 14:57:08,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 14:57:08,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 14:57:08,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 14:57:08,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 14:57:08,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 14:57:08,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 14:57:08,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 14:57:08,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 14:57:08,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 14:57:08,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 14:57:08,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 14:57:08,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 14:57:08,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 14:57:08,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 14:57:08,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 14:57:08,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 14:57:08,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 14:57:08,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 14:57:08,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 14:57:08,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 14:57:08,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 14:57:08,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 14:57:08,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 14:57:08,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 14:57:08,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 14:57:08,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 14:57:08,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 14:57:08,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 14:57:08,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 14:57:08,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 14:57:08,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 14:57:08,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 14:57:08,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 14:57:08,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 14:57:08,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 14:57:08,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 14:57:08,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 14:57:08,986 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 14:57:08,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 14:57:08,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 14:57:08,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 14:57:08,989 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 14:57:08,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 14:57:08,989 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 14:57:08,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 14:57:08,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 14:57:08,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 14:57:08,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 14:57:08,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 14:57:08,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 14:57:08,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 14:57:08,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 14:57:08,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 14:57:08,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 14:57:08,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 14:57:08,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 14:57:08,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 14:57:08,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 14:57:08,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 14:57:08,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 14:57:08,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 14:57:08,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 14:57:08,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 14:57:08,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 14:57:08,994 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 14:57:08,994 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 14:57:08,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 14:57:08,994 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 14:57:09,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 14:57:09,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 14:57:09,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 14:57:09,411 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 14:57:09,412 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 14:57:09,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-11-09 14:57:09,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64c44f18/0b639970637144eeaa84e286b547f997/FLAG0902276be [2020-11-09 14:57:10,214 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 14:57:10,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-11-09 14:57:10,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64c44f18/0b639970637144eeaa84e286b547f997/FLAG0902276be [2020-11-09 14:57:10,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64c44f18/0b639970637144eeaa84e286b547f997 [2020-11-09 14:57:10,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 14:57:10,468 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 14:57:10,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 14:57:10,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 14:57:10,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 14:57:10,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:57:10" (1/1) ... [2020-11-09 14:57:10,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4d73b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:10, skipping insertion in model container [2020-11-09 14:57:10,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:57:10" (1/1) ... [2020-11-09 14:57:10,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 14:57:10,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 14:57:11,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 14:57:11,028 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 14:57:11,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 14:57:11,237 INFO L208 MainTranslator]: Completed translation [2020-11-09 14:57:11,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11 WrapperNode [2020-11-09 14:57:11,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 14:57:11,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 14:57:11,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 14:57:11,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 14:57:11,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... [2020-11-09 14:57:11,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... [2020-11-09 14:57:11,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 14:57:11,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 14:57:11,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 14:57:11,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 14:57:11,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... [2020-11-09 14:57:11,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... [2020-11-09 14:57:11,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... [2020-11-09 14:57:11,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... [2020-11-09 14:57:11,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... [2020-11-09 14:57:11,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... [2020-11-09 14:57:11,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... [2020-11-09 14:57:11,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 14:57:11,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 14:57:11,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 14:57:11,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 14:57:11,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 14:57:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 14:57:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-09 14:57:11,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-09 14:57:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 14:57:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 14:57:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 14:57:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 14:57:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 14:57:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 14:57:11,505 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 14:57:12,348 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 14:57:12,348 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 14:57:12,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:57:12 BoogieIcfgContainer [2020-11-09 14:57:12,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 14:57:12,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 14:57:12,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 14:57:12,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 14:57:12,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:57:10" (1/3) ... [2020-11-09 14:57:12,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524c3a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:57:12, skipping insertion in model container [2020-11-09 14:57:12,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:11" (2/3) ... [2020-11-09 14:57:12,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524c3a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:57:12, skipping insertion in model container [2020-11-09 14:57:12,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:57:12" (3/3) ... [2020-11-09 14:57:12,360 INFO L111 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-11-09 14:57:12,376 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 14:57:12,377 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 14:57:12,381 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-09 14:57:12,382 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 14:57:12,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,423 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,423 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,423 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,424 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,435 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,435 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,435 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:57:12,437 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 14:57:12,450 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 14:57:12,474 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 14:57:12,474 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 14:57:12,475 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 14:57:12,475 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 14:57:12,475 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 14:57:12,475 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 14:57:12,475 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 14:57:12,475 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 14:57:12,488 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 14:57:12,489 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 68 transitions, 141 flow [2020-11-09 14:57:12,493 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 68 transitions, 141 flow [2020-11-09 14:57:12,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 68 transitions, 141 flow [2020-11-09 14:57:12,537 INFO L129 PetriNetUnfolder]: 6/67 cut-off events. [2020-11-09 14:57:12,537 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 14:57:12,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 6/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 48. Up to 3 conditions per place. [2020-11-09 14:57:12,545 INFO L116 LiptonReduction]: Number of co-enabled transitions 1134 [2020-11-09 14:57:13,051 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-11-09 14:57:15,251 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-11-09 14:57:16,524 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-11-09 14:57:16,806 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-09 14:57:16,942 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-09 14:57:17,188 WARN L194 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-09 14:57:17,300 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-09 14:57:17,869 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-11-09 14:57:18,050 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-09 14:57:18,422 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-11-09 14:57:18,586 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-09 14:57:18,599 INFO L131 LiptonReduction]: Checked pairs total: 3191 [2020-11-09 14:57:18,600 INFO L133 LiptonReduction]: Total number of compositions: 62 [2020-11-09 14:57:18,607 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 25 transitions, 55 flow [2020-11-09 14:57:18,619 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 82 states. [2020-11-09 14:57:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2020-11-09 14:57:18,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-09 14:57:18,628 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:57:18,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-09 14:57:18,629 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:57:18,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:57:18,636 INFO L82 PathProgramCache]: Analyzing trace with hash 461951413, now seen corresponding path program 1 times [2020-11-09 14:57:18,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:57:18,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807785667] [2020-11-09 14:57:18,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:57:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:57:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:57:18,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807785667] [2020-11-09 14:57:18,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:57:18,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 14:57:18,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [20845767] [2020-11-09 14:57:18,884 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 14:57:18,890 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 14:57:18,904 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-11-09 14:57:18,905 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 14:57:18,910 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 14:57:18,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:57:18,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:57:18,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:57:18,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:57:18,935 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 3 states. [2020-11-09 14:57:18,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:57:18,964 INFO L93 Difference]: Finished difference Result 82 states and 154 transitions. [2020-11-09 14:57:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:57:18,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-09 14:57:18,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:57:18,975 INFO L225 Difference]: With dead ends: 82 [2020-11-09 14:57:18,975 INFO L226 Difference]: Without dead ends: 73 [2020-11-09 14:57:18,977 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 [2020-11-09 14:57:18,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-09 14:57:19,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-09 14:57:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-09 14:57:19,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 133 transitions. [2020-11-09 14:57:19,025 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 133 transitions. Word has length 5 [2020-11-09 14:57:19,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:57:19,025 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 133 transitions. [2020-11-09 14:57:19,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:57:19,025 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 133 transitions. [2020-11-09 14:57:19,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 14:57:19,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:57:19,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 14:57:19,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 14:57:19,027 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:57:19,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:57:19,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1435959724, now seen corresponding path program 1 times [2020-11-09 14:57:19,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:57:19,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579788029] [2020-11-09 14:57:19,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:57:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:57:19,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:57:19,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579788029] [2020-11-09 14:57:19,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:57:19,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 14:57:19,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1891476009] [2020-11-09 14:57:19,124 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 14:57:19,126 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 14:57:19,128 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 14:57:19,129 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 14:57:19,130 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 14:57:19,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:57:19,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:57:19,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:57:19,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:57:19,134 INFO L87 Difference]: Start difference. First operand 73 states and 133 transitions. Second operand 3 states. [2020-11-09 14:57:19,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:57:19,198 INFO L93 Difference]: Finished difference Result 72 states and 122 transitions. [2020-11-09 14:57:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:57:19,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-09 14:57:19,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:57:19,201 INFO L225 Difference]: With dead ends: 72 [2020-11-09 14:57:19,201 INFO L226 Difference]: Without dead ends: 60 [2020-11-09 14:57:19,202 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 [2020-11-09 14:57:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-09 14:57:19,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-11-09 14:57:19,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-09 14:57:19,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 98 transitions. [2020-11-09 14:57:19,213 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 98 transitions. Word has length 6 [2020-11-09 14:57:19,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:57:19,214 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 98 transitions. [2020-11-09 14:57:19,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:57:19,214 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 98 transitions. [2020-11-09 14:57:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 14:57:19,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:57:19,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:57:19,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 14:57:19,215 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:57:19,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:57:19,216 INFO L82 PathProgramCache]: Analyzing trace with hash 907482687, now seen corresponding path program 1 times [2020-11-09 14:57:19,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:57:19,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233458238] [2020-11-09 14:57:19,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:57:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:57:19,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:57:19,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233458238] [2020-11-09 14:57:19,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:57:19,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 14:57:19,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [781828573] [2020-11-09 14:57:19,273 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 14:57:19,274 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 14:57:19,275 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 14:57:19,276 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 14:57:19,276 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 14:57:19,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:57:19,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:57:19,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:57:19,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:57:19,278 INFO L87 Difference]: Start difference. First operand 56 states and 98 transitions. Second operand 3 states. [2020-11-09 14:57:19,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:57:19,298 INFO L93 Difference]: Finished difference Result 50 states and 82 transitions. [2020-11-09 14:57:19,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:57:19,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 14:57:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:57:19,300 INFO L225 Difference]: With dead ends: 50 [2020-11-09 14:57:19,300 INFO L226 Difference]: Without dead ends: 37 [2020-11-09 14:57:19,300 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 [2020-11-09 14:57:19,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-09 14:57:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-09 14:57:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-09 14:57:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2020-11-09 14:57:19,306 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2020-11-09 14:57:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:57:19,306 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2020-11-09 14:57:19,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:57:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2020-11-09 14:57:19,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 14:57:19,307 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:57:19,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:57:19,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 14:57:19,308 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:57:19,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:57:19,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2002101761, now seen corresponding path program 1 times [2020-11-09 14:57:19,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:57:19,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589562744] [2020-11-09 14:57:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:57:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:57:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:57:19,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589562744] [2020-11-09 14:57:19,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:57:19,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:57:19,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1153789680] [2020-11-09 14:57:19,393 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 14:57:19,395 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 14:57:19,402 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 14:57:19,403 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 14:57:19,417 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 14:57:19,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:57:19,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:57:19,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:57:19,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:57:19,419 INFO L87 Difference]: Start difference. First operand 37 states and 54 transitions. Second operand 3 states. [2020-11-09 14:57:19,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:57:19,427 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2020-11-09 14:57:19,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:57:19,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 14:57:19,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:57:19,428 INFO L225 Difference]: With dead ends: 37 [2020-11-09 14:57:19,428 INFO L226 Difference]: Without dead ends: 31 [2020-11-09 14:57:19,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:57:19,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-09 14:57:19,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-09 14:57:19,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-09 14:57:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-09 14:57:19,433 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-11-09 14:57:19,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:57:19,434 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-09 14:57:19,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:57:19,434 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-09 14:57:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 14:57:19,435 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:57:19,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:57:19,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 14:57:19,435 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:57:19,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:57:19,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1339377771, now seen corresponding path program 2 times [2020-11-09 14:57:19,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:57:19,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059684704] [2020-11-09 14:57:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:57:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:57:19,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:57:19,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059684704] [2020-11-09 14:57:19,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:57:19,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:57:19,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [573332137] [2020-11-09 14:57:19,480 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 14:57:19,481 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 14:57:19,482 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 14:57:19,482 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 14:57:19,483 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 14:57:19,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:57:19,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:57:19,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:57:19,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:57:19,484 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 3 states. [2020-11-09 14:57:19,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:57:19,507 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-11-09 14:57:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:57:19,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 14:57:19,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:57:19,508 INFO L225 Difference]: With dead ends: 11 [2020-11-09 14:57:19,508 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 14:57:19,508 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 [2020-11-09 14:57:19,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 14:57:19,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 14:57:19,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 14:57:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 14:57:19,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-09 14:57:19,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:57:19,509 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 14:57:19,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:57:19,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 14:57:19,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 14:57:19,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 14:57:19,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:57:19 BasicIcfg [2020-11-09 14:57:19,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 14:57:19,515 INFO L168 Benchmark]: Toolchain (without parser) took 9052.89 ms. Allocated memory was 159.4 MB in the beginning and 254.8 MB in the end (delta: 95.4 MB). Free memory was 132.5 MB in the beginning and 117.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 111.2 MB. Max. memory is 8.0 GB. [2020-11-09 14:57:19,516 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 159.4 MB. Free memory is still 132.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 14:57:19,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.31 ms. Allocated memory is still 159.4 MB. Free memory was 131.9 MB in the beginning and 139.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. [2020-11-09 14:57:19,518 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.79 ms. Allocated memory is still 159.4 MB. Free memory was 139.4 MB in the beginning and 137.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 14:57:19,519 INFO L168 Benchmark]: Boogie Preprocessor took 66.47 ms. Allocated memory is still 159.4 MB. Free memory was 137.3 MB in the beginning and 135.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 14:57:19,523 INFO L168 Benchmark]: RCFGBuilder took 931.70 ms. Allocated memory is still 159.4 MB. Free memory was 135.7 MB in the beginning and 68.1 MB in the end (delta: 67.6 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. [2020-11-09 14:57:19,525 INFO L168 Benchmark]: TraceAbstraction took 7161.11 ms. Allocated memory was 159.4 MB in the beginning and 254.8 MB in the end (delta: 95.4 MB). Free memory was 67.6 MB in the beginning and 117.4 MB in the end (delta: -49.8 MB). Peak memory consumption was 46.7 MB. Max. memory is 8.0 GB. [2020-11-09 14:57:19,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 159.4 MB. Free memory is still 132.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 785.31 ms. Allocated memory is still 159.4 MB. Free memory was 131.9 MB in the beginning and 139.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 31.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 90.79 ms. Allocated memory is still 159.4 MB. Free memory was 139.4 MB in the beginning and 137.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.47 ms. Allocated memory is still 159.4 MB. Free memory was 137.3 MB in the beginning and 135.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 931.70 ms. Allocated memory is still 159.4 MB. Free memory was 135.7 MB in the beginning and 68.1 MB in the end (delta: 67.6 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7161.11 ms. Allocated memory was 159.4 MB in the beginning and 254.8 MB in the end (delta: 95.4 MB). Free memory was 67.6 MB in the beginning and 117.4 MB in the end (delta: -49.8 MB). Peak memory consumption was 46.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 680 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 84 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.1s, 66 PlacesBefore, 23 PlacesAfterwards, 68 TransitionsBefore, 25 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 62 TotalNumberOfCompositions, 3191 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 82 SDtfs, 41 SDslu, 33 SDs, 0 SdLazy, 24 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...