/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:17:31,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:17:31,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:17:31,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:17:31,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:17:31,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:17:31,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:17:31,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:17:31,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:17:31,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:17:31,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:17:31,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:17:31,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:17:31,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:17:31,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:17:31,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:17:31,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:17:31,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:17:31,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:17:31,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:17:31,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:17:31,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:17:31,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:17:31,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:17:31,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:17:32,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:17:32,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:17:32,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:17:32,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:17:32,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:17:32,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:17:32,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:17:32,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:17:32,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:17:32,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:17:32,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:17:32,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf [2020-11-12 12:17:32,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:17:32,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:17:32,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:17:32,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:17:32,084 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:17:32,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:17:32,084 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:17:32,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:17:32,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:17:32,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:17:32,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:17:32,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:17:32,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:17:32,087 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:17:32,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:17:32,087 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:17:32,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:17:32,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:17:32,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:17:32,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:17:32,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:17:32,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:17:32,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:17:32,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:17:32,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:17:32,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:17:32,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:17:32,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:17:32,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:17:32,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:17:32,091 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:17:32,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:17:32,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:17:32,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:17:32,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:17:32,526 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:17:32,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-11-12 12:17:32,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6260b91c/0ef6d049fe6b4c50a37c53f10e60ddef/FLAGe3efbda67 [2020-11-12 12:17:33,251 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:17:33,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-11-12 12:17:33,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6260b91c/0ef6d049fe6b4c50a37c53f10e60ddef/FLAGe3efbda67 [2020-11-12 12:17:33,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6260b91c/0ef6d049fe6b4c50a37c53f10e60ddef [2020-11-12 12:17:33,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:17:33,530 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:17:33,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:17:33,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:17:33,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:17:33,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:17:33" (1/1) ... [2020-11-12 12:17:33,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf3842e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:33, skipping insertion in model container [2020-11-12 12:17:33,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:17:33" (1/1) ... [2020-11-12 12:17:33,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:17:33,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:17:34,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:17:34,105 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:17:34,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:17:34,294 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:17:34,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34 WrapperNode [2020-11-12 12:17:34,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:17:34,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:17:34,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:17:34,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:17:34,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (1/1) ... [2020-11-12 12:17:34,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (1/1) ... [2020-11-12 12:17:34,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:17:34,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:17:34,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:17:34,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:17:34,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (1/1) ... [2020-11-12 12:17:34,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (1/1) ... [2020-11-12 12:17:34,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (1/1) ... [2020-11-12 12:17:34,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (1/1) ... [2020-11-12 12:17:34,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (1/1) ... [2020-11-12 12:17:34,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (1/1) ... [2020-11-12 12:17:34,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (1/1) ... [2020-11-12 12:17:34,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:17:34,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:17:34,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:17:34,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:17:34,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (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 [2020-11-12 12:17:34,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:17:34,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:17:34,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:17:34,519 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:17:34,519 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:17:34,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:17:34,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:17:34,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:17:34,522 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:17:34,948 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:17:34,949 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:17:34,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:17:34 BoogieIcfgContainer [2020-11-12 12:17:34,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:17:34,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:17:34,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:17:34,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:17:34,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:17:33" (1/3) ... [2020-11-12 12:17:34,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf8c4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:17:34, skipping insertion in model container [2020-11-12 12:17:34,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:34" (2/3) ... [2020-11-12 12:17:34,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf8c4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:17:34, skipping insertion in model container [2020-11-12 12:17:34,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:17:34" (3/3) ... [2020-11-12 12:17:34,960 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-11-12 12:17:34,976 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:17:34,977 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:17:34,981 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:17:34,982 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:17:35,016 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,017 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,017 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,020 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,020 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,021 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,021 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,027 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,028 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,028 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,028 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,036 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,036 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:35,040 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:17:35,053 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 12:17:35,077 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:17:35,077 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:17:35,078 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:17:35,078 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:17:35,078 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:17:35,078 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:17:35,078 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:17:35,078 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:17:35,090 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2020-11-12 12:17:35,181 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:35,537 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 352ms [2020-11-12 12:17:35,542 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:35,550 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 4063 states, 3671 states have (on average 1.1707981476436937) internal successors, (4298), 4062 states have internal predecessors, (4298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:35,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 4063 states, 3671 states have (on average 1.1707981476436937) internal successors, (4298), 4062 states have internal predecessors, (4298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-12 12:17:35,576 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:35,577 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:17:35,577 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:35,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:35,585 INFO L82 PathProgramCache]: Analyzing trace with hash 2018155564, now seen corresponding path program 1 times [2020-11-12 12:17:35,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:35,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877043687] [2020-11-12 12:17:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:36,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:36,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877043687] [2020-11-12 12:17:36,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:36,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:17:36,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978009686] [2020-11-12 12:17:36,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:17:36,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:36,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:17:36,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:17:36,185 INFO L87 Difference]: Start difference. First operand has 4063 states, 3671 states have (on average 1.1707981476436937) internal successors, (4298), 4062 states have internal predecessors, (4298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:36,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:36,493 INFO L93 Difference]: Finished difference Result 1683 states and 1838 transitions. [2020-11-12 12:17:36,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:17:36,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2020-11-12 12:17:36,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:36,516 INFO L225 Difference]: With dead ends: 1683 [2020-11-12 12:17:36,517 INFO L226 Difference]: Without dead ends: 663 [2020-11-12 12:17:36,519 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:17:36,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2020-11-12 12:17:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 663. [2020-11-12 12:17:36,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 628 states have (on average 1.2452229299363058) internal successors, (782), 662 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 782 transitions. [2020-11-12 12:17:36,616 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 782 transitions. Word has length 36 [2020-11-12 12:17:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:36,617 INFO L481 AbstractCegarLoop]: Abstraction has 663 states and 782 transitions. [2020-11-12 12:17:36,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 782 transitions. [2020-11-12 12:17:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-12 12:17:36,621 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:36,621 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:17:36,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:17:36,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:36,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:36,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1725393197, now seen corresponding path program 1 times [2020-11-12 12:17:36,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:36,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141111392] [2020-11-12 12:17:36,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:36,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141111392] [2020-11-12 12:17:36,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:36,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:17:36,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848930493] [2020-11-12 12:17:36,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:17:36,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:36,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:17:36,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:17:36,871 INFO L87 Difference]: Start difference. First operand 663 states and 782 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:37,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:37,169 INFO L93 Difference]: Finished difference Result 851 states and 1008 transitions. [2020-11-12 12:17:37,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:17:37,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2020-11-12 12:17:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:37,173 INFO L225 Difference]: With dead ends: 851 [2020-11-12 12:17:37,174 INFO L226 Difference]: Without dead ends: 376 [2020-11-12 12:17:37,175 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:17:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-11-12 12:17:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2020-11-12 12:17:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 356 states have (on average 1.1797752808988764) internal successors, (420), 375 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 420 transitions. [2020-11-12 12:17:37,198 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 420 transitions. Word has length 38 [2020-11-12 12:17:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:37,199 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 420 transitions. [2020-11-12 12:17:37,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 420 transitions. [2020-11-12 12:17:37,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 12:17:37,201 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:37,201 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:17:37,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:17:37,202 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:37,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:37,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1936537294, now seen corresponding path program 1 times [2020-11-12 12:17:37,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:37,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950698722] [2020-11-12 12:17:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:37,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950698722] [2020-11-12 12:17:37,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:37,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:17:37,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129909319] [2020-11-12 12:17:37,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:17:37,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:37,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:17:37,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:17:37,383 INFO L87 Difference]: Start difference. First operand 376 states and 420 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:37,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:37,559 INFO L93 Difference]: Finished difference Result 420 states and 449 transitions. [2020-11-12 12:17:37,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:17:37,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-11-12 12:17:37,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:37,562 INFO L225 Difference]: With dead ends: 420 [2020-11-12 12:17:37,562 INFO L226 Difference]: Without dead ends: 338 [2020-11-12 12:17:37,563 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:17:37,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-11-12 12:17:37,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2020-11-12 12:17:37,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 320 states have (on average 1.146875) internal successors, (367), 337 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:37,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 367 transitions. [2020-11-12 12:17:37,578 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 367 transitions. Word has length 41 [2020-11-12 12:17:37,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:37,579 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 367 transitions. [2020-11-12 12:17:37,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:37,579 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 367 transitions. [2020-11-12 12:17:37,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:17:37,581 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:37,581 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:17:37,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:17:37,582 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:37,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:37,582 INFO L82 PathProgramCache]: Analyzing trace with hash -2023139281, now seen corresponding path program 1 times [2020-11-12 12:17:37,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:37,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364526566] [2020-11-12 12:17:37,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:37,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364526566] [2020-11-12 12:17:37,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:37,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:17:37,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255399096] [2020-11-12 12:17:37,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:17:37,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:37,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:17:37,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:17:37,787 INFO L87 Difference]: Start difference. First operand 338 states and 367 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:37,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:37,964 INFO L93 Difference]: Finished difference Result 280 states and 288 transitions. [2020-11-12 12:17:37,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:17:37,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-11-12 12:17:37,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:37,966 INFO L225 Difference]: With dead ends: 280 [2020-11-12 12:17:37,967 INFO L226 Difference]: Without dead ends: 181 [2020-11-12 12:17:37,967 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:17:37,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-11-12 12:17:37,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-11-12 12:17:37,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 172 states have (on average 1.0465116279069768) internal successors, (180), 180 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:37,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 180 transitions. [2020-11-12 12:17:37,974 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 180 transitions. Word has length 42 [2020-11-12 12:17:37,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:37,974 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 180 transitions. [2020-11-12 12:17:37,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:37,975 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 180 transitions. [2020-11-12 12:17:37,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 12:17:37,976 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:37,976 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:17:37,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:17:37,977 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:37,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:37,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1609449296, now seen corresponding path program 1 times [2020-11-12 12:17:37,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:37,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361489201] [2020-11-12 12:17:37,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:38,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361489201] [2020-11-12 12:17:38,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:38,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:17:38,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57429469] [2020-11-12 12:17:38,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:17:38,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:38,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:17:38,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:17:38,116 INFO L87 Difference]: Start difference. First operand 181 states and 180 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:38,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:38,205 INFO L93 Difference]: Finished difference Result 145 states and 144 transitions. [2020-11-12 12:17:38,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-12 12:17:38,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-11-12 12:17:38,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:38,206 INFO L225 Difference]: With dead ends: 145 [2020-11-12 12:17:38,206 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:17:38,207 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-12 12:17:38,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:17:38,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:17:38,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:17:38,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-11-12 12:17:38,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:38,212 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:17:38,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:17:38,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:17:38,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:17:38,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:17:38,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:17:38 BasicIcfg [2020-11-12 12:17:38,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:17:38,229 INFO L168 Benchmark]: Toolchain (without parser) took 4701.46 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 277.3 MB in the beginning and 265.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 77.4 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:38,230 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:17:38,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.16 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.0 MB in the end (delta: 30.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:38,234 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.54 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 284.6 MB in the end (delta: -38.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:38,235 INFO L168 Benchmark]: Boogie Preprocessor took 26.52 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 282.4 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:17:38,237 INFO L168 Benchmark]: RCFGBuilder took 513.15 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 262.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:38,240 INFO L168 Benchmark]: TraceAbstraction took 3272.14 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.4 MB in the beginning and 265.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 60.2 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:38,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 762.16 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.0 MB in the end (delta: 30.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 113.54 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 284.6 MB in the end (delta: -38.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.52 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 282.4 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 513.15 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 262.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3272.14 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.4 MB in the beginning and 265.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 60.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 243 SDtfs, 294 SDslu, 908 SDs, 0 SdLazy, 111 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4063occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 20650 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...