/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.epf -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 13:29:47,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 13:29:47,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 13:29:47,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 13:29:47,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 13:29:47,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 13:29:47,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 13:29:47,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 13:29:47,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 13:29:47,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 13:29:47,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 13:29:47,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 13:29:47,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 13:29:47,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 13:29:47,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 13:29:47,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 13:29:47,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 13:29:47,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 13:29:47,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 13:29:47,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 13:29:47,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 13:29:47,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 13:29:47,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 13:29:47,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 13:29:47,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 13:29:47,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 13:29:47,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 13:29:47,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 13:29:47,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 13:29:47,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 13:29:47,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 13:29:47,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 13:29:47,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 13:29:47,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 13:29:47,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 13:29:47,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 13:29:47,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 13:29:47,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 13:29:47,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 13:29:47,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 13:29:47,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 13:29:47,993 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.epf [2020-11-09 13:29:48,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 13:29:48,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 13:29:48,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 13:29:48,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 13:29:48,071 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 13:29:48,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 13:29:48,074 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 13:29:48,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 13:29:48,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 13:29:48,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 13:29:48,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 13:29:48,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 13:29:48,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 13:29:48,075 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 13:29:48,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 13:29:48,076 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 13:29:48,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 13:29:48,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 13:29:48,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 13:29:48,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 13:29:48,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 13:29:48,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 13:29:48,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 13:29:48,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 13:29:48,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 13:29:48,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 13:29:48,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 13:29:48,080 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 13:29:48,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 13:29:48,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 13:29:48,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 13:29:48,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 13:29:48,546 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 13:29:48,547 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 13:29:48,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2020-11-09 13:29:48,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a19a4dc/9ca589b0d987493d9b8f1c2e1dd34f77/FLAG2a7cbd3f4 [2020-11-09 13:29:49,306 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 13:29:49,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2020-11-09 13:29:49,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a19a4dc/9ca589b0d987493d9b8f1c2e1dd34f77/FLAG2a7cbd3f4 [2020-11-09 13:29:49,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a19a4dc/9ca589b0d987493d9b8f1c2e1dd34f77 [2020-11-09 13:29:49,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 13:29:49,632 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 13:29:49,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 13:29:49,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 13:29:49,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 13:29:49,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:29:49" (1/1) ... [2020-11-09 13:29:49,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fbf458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:49, skipping insertion in model container [2020-11-09 13:29:49,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:29:49" (1/1) ... [2020-11-09 13:29:49,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 13:29:49,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 13:29:50,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 13:29:50,319 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 13:29:50,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 13:29:50,564 INFO L208 MainTranslator]: Completed translation [2020-11-09 13:29:50,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50 WrapperNode [2020-11-09 13:29:50,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 13:29:50,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 13:29:50,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 13:29:50,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 13:29:50,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (1/1) ... [2020-11-09 13:29:50,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (1/1) ... [2020-11-09 13:29:50,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 13:29:50,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 13:29:50,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 13:29:50,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 13:29:50,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (1/1) ... [2020-11-09 13:29:50,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (1/1) ... [2020-11-09 13:29:50,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (1/1) ... [2020-11-09 13:29:50,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (1/1) ... [2020-11-09 13:29:50,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (1/1) ... [2020-11-09 13:29:50,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (1/1) ... [2020-11-09 13:29:50,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (1/1) ... [2020-11-09 13:29:50,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 13:29:50,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 13:29:50,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 13:29:50,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 13:29:50,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (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 13:29:50,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 13:29:50,751 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-09 13:29:50,751 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-09 13:29:50,751 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-11-09 13:29:50,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-11-09 13:29:50,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 13:29:50,753 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-09 13:29:50,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 13:29:50,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 13:29:50,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 13:29:50,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 13:29:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 13:29:50,757 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 13:29:51,286 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 13:29:51,287 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-09 13:29:51,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:29:51 BoogieIcfgContainer [2020-11-09 13:29:51,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 13:29:51,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 13:29:51,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 13:29:51,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 13:29:51,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:29:49" (1/3) ... [2020-11-09 13:29:51,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1b18de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:29:51, skipping insertion in model container [2020-11-09 13:29:51,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:29:50" (2/3) ... [2020-11-09 13:29:51,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1b18de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:29:51, skipping insertion in model container [2020-11-09 13:29:51,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:29:51" (3/3) ... [2020-11-09 13:29:51,302 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2020-11-09 13:29:51,321 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 13:29:51,321 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 13:29:51,326 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 13:29:51,327 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 13:29:51,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,369 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,369 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,370 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,370 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,370 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,370 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,373 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,373 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,373 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,378 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,379 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,380 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,386 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,386 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,386 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,386 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,387 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,387 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,388 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,388 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,388 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,389 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,389 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,392 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,393 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,393 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,393 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,400 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,401 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,402 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,402 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,402 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,402 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,411 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,412 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,412 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,413 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:29:51,429 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-09 13:29:51,443 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 13:29:51,485 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 13:29:51,485 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 13:29:51,486 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 13:29:51,486 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 13:29:51,486 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 13:29:51,486 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 13:29:51,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 13:29:51,486 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 13:29:51,507 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 13:29:51,508 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 87 transitions, 196 flow [2020-11-09 13:29:51,512 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 87 transitions, 196 flow [2020-11-09 13:29:51,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 196 flow [2020-11-09 13:29:51,619 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-11-09 13:29:51,619 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-09 13:29:51,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 3/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 32. Up to 3 conditions per place. [2020-11-09 13:29:51,631 INFO L116 LiptonReduction]: Number of co-enabled transitions 680 [2020-11-09 13:29:54,990 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-09 13:29:55,101 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 13:29:55,219 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-09 13:29:55,326 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 13:29:55,536 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-09 13:29:55,827 WARN L194 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-09 13:29:56,678 WARN L194 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 132 [2020-11-09 13:29:57,011 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-09 13:29:57,742 WARN L194 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 132 [2020-11-09 13:29:58,099 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-09 13:29:58,106 INFO L131 LiptonReduction]: Checked pairs total: 3154 [2020-11-09 13:29:58,107 INFO L133 LiptonReduction]: Total number of compositions: 65 [2020-11-09 13:29:58,112 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2020-11-09 13:29:58,133 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-11-09 13:29:58,135 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-11-09 13:29:58,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 13:29:58,146 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 13:29:58,147 INFO L422 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] [2020-11-09 13:29:58,147 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 13:29:58,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 13:29:58,153 INFO L82 PathProgramCache]: Analyzing trace with hash -657566232, now seen corresponding path program 1 times [2020-11-09 13:29:58,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 13:29:58,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637710482] [2020-11-09 13:29:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 13:29:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 13:29:58,459 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 13:29:58,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637710482] [2020-11-09 13:29:58,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 13:29:58,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 13:29:58,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465851521] [2020-11-09 13:29:58,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 13:29:58,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 13:29:58,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 13:29:58,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 13:29:58,491 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-11-09 13:29:58,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 13:29:58,572 INFO L93 Difference]: Finished difference Result 150 states and 254 transitions. [2020-11-09 13:29:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 13:29:58,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-09 13:29:58,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 13:29:58,592 INFO L225 Difference]: With dead ends: 150 [2020-11-09 13:29:58,592 INFO L226 Difference]: Without dead ends: 149 [2020-11-09 13:29:58,595 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 13:29:58,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-11-09 13:29:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-11-09 13:29:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-11-09 13:29:58,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 253 transitions. [2020-11-09 13:29:58,678 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 253 transitions. Word has length 25 [2020-11-09 13:29:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 13:29:58,679 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 253 transitions. [2020-11-09 13:29:58,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 13:29:58,679 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2020-11-09 13:29:58,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 13:29:58,686 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 13:29:58,686 INFO L422 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] [2020-11-09 13:29:58,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 13:29:58,687 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 13:29:58,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 13:29:58,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1255226036, now seen corresponding path program 2 times [2020-11-09 13:29:58,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 13:29:58,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446085611] [2020-11-09 13:29:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 13:29:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 13:29:58,886 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 13:29:58,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446085611] [2020-11-09 13:29:58,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 13:29:58,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 13:29:58,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650542641] [2020-11-09 13:29:58,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 13:29:58,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 13:29:58,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 13:29:58,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-09 13:29:58,890 INFO L87 Difference]: Start difference. First operand 149 states and 253 transitions. Second operand 6 states. [2020-11-09 13:29:58,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 13:29:58,957 INFO L93 Difference]: Finished difference Result 206 states and 346 transitions. [2020-11-09 13:29:58,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 13:29:58,957 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-09 13:29:58,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 13:29:58,959 INFO L225 Difference]: With dead ends: 206 [2020-11-09 13:29:58,959 INFO L226 Difference]: Without dead ends: 100 [2020-11-09 13:29:58,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-09 13:29:58,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-09 13:29:58,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-11-09 13:29:58,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-09 13:29:58,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 163 transitions. [2020-11-09 13:29:58,968 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 163 transitions. Word has length 25 [2020-11-09 13:29:58,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 13:29:58,968 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 163 transitions. [2020-11-09 13:29:58,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 13:29:58,968 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 163 transitions. [2020-11-09 13:29:58,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 13:29:58,969 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 13:29:58,970 INFO L422 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] [2020-11-09 13:29:58,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 13:29:58,970 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 13:29:58,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 13:29:58,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1830117440, now seen corresponding path program 3 times [2020-11-09 13:29:58,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 13:29:58,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030713955] [2020-11-09 13:29:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 13:29:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 13:29:59,182 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 13:29:59,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030713955] [2020-11-09 13:29:59,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 13:29:59,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 13:29:59,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287976894] [2020-11-09 13:29:59,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 13:29:59,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 13:29:59,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 13:29:59,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-09 13:29:59,185 INFO L87 Difference]: Start difference. First operand 100 states and 163 transitions. Second operand 6 states. [2020-11-09 13:29:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 13:29:59,228 INFO L93 Difference]: Finished difference Result 99 states and 162 transitions. [2020-11-09 13:29:59,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 13:29:59,229 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-09 13:29:59,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 13:29:59,229 INFO L225 Difference]: With dead ends: 99 [2020-11-09 13:29:59,229 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 13:29:59,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-09 13:29:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 13:29:59,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 13:29:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 13:29:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 13:29:59,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-11-09 13:29:59,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 13:29:59,231 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 13:29:59,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 13:29:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 13:29:59,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 13:29:59,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 13:29:59,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:29:59 BasicIcfg [2020-11-09 13:29:59,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 13:29:59,237 INFO L168 Benchmark]: Toolchain (without parser) took 9610.28 ms. Allocated memory was 152.0 MB in the beginning and 215.0 MB in the end (delta: 62.9 MB). Free memory was 109.1 MB in the beginning and 103.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 68.5 MB. Max. memory is 8.0 GB. [2020-11-09 13:29:59,238 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 13:29:59,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 926.94 ms. Allocated memory is still 152.0 MB. Free memory was 108.5 MB in the beginning and 117.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 17.0 MB. Max. memory is 8.0 GB. [2020-11-09 13:29:59,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.12 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 115.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 13:29:59,241 INFO L168 Benchmark]: Boogie Preprocessor took 30.81 ms. Allocated memory is still 152.0 MB. Free memory was 115.6 MB in the beginning and 114.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 13:29:59,242 INFO L168 Benchmark]: RCFGBuilder took 605.32 ms. Allocated memory is still 152.0 MB. Free memory was 114.0 MB in the beginning and 90.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-09 13:29:59,243 INFO L168 Benchmark]: TraceAbstraction took 7941.77 ms. Allocated memory was 152.0 MB in the beginning and 215.0 MB in the end (delta: 62.9 MB). Free memory was 89.9 MB in the beginning and 103.9 MB in the end (delta: -14.0 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. [2020-11-09 13:29:59,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 926.94 ms. Allocated memory is still 152.0 MB. Free memory was 108.5 MB in the beginning and 117.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 17.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 85.12 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 115.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.81 ms. Allocated memory is still 152.0 MB. Free memory was 115.6 MB in the beginning and 114.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 605.32 ms. Allocated memory is still 152.0 MB. Free memory was 114.0 MB in the beginning and 90.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7941.77 ms. Allocated memory was 152.0 MB in the beginning and 215.0 MB in the end (delta: 62.9 MB). Free memory was 89.9 MB in the beginning and 103.9 MB in the end (delta: -14.0 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 331 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.5s, 90 PlacesBefore, 35 PlacesAfterwards, 87 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 65 TotalNumberOfCompositions, 3154 MoverChecksTotal - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 112 SDtfs, 43 SDslu, 254 SDs, 0 SdLazy, 48 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 9216 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...