/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:36:42,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:36:42,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:36:42,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:36:42,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:36:42,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:36:42,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:36:42,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:36:42,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:36:42,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:36:42,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:36:42,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:36:42,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:36:42,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:36:42,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:36:42,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:36:42,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:36:42,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:36:42,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:36:42,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:36:42,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:36:42,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:36:42,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:36:42,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:36:42,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:36:42,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:36:42,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:36:42,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:36:42,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:36:42,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:36:42,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:36:42,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:36:42,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:36:42,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:36:42,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:36:42,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:36:42,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-26 17:36:42,435 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:36:42,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:36:42,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:36:42,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:36:42,438 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:36:42,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:36:42,439 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:36:42,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:36:42,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:36:42,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:36:42,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:36:42,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:36:42,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:36:42,441 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:36:42,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:36:42,442 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:36:42,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:36:42,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:36:42,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:36:42,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:36:42,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:36:42,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:36:42,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:36:42,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:36:42,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:36:42,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:36:42,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:36:42,445 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:36:42,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:36:42,445 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:36:42,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:36:42,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:36:42,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:36:42,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:36:42,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:36:42,825 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:36:42,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2021-01-26 17:36:42,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/278fb79a0/07d42181a66c4d72b6d68c6c4202fc56/FLAG916bd9fd8 [2021-01-26 17:36:43,685 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:36:43,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2021-01-26 17:36:43,701 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/278fb79a0/07d42181a66c4d72b6d68c6c4202fc56/FLAG916bd9fd8 [2021-01-26 17:36:43,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/278fb79a0/07d42181a66c4d72b6d68c6c4202fc56 [2021-01-26 17:36:43,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:36:43,746 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:36:43,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:36:43,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:36:43,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:36:43,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:36:43" (1/1) ... [2021-01-26 17:36:43,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa7c8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:43, skipping insertion in model container [2021-01-26 17:36:43,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:36:43" (1/1) ... [2021-01-26 17:36:43,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:36:43,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:36:44,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:36:44,171 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:36:44,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:36:44,372 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:36:44,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44 WrapperNode [2021-01-26 17:36:44,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:36:44,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:36:44,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:36:44,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:36:44,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (1/1) ... [2021-01-26 17:36:44,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (1/1) ... [2021-01-26 17:36:44,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:36:44,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:36:44,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:36:44,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:36:44,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (1/1) ... [2021-01-26 17:36:44,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (1/1) ... [2021-01-26 17:36:44,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (1/1) ... [2021-01-26 17:36:44,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (1/1) ... [2021-01-26 17:36:44,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (1/1) ... [2021-01-26 17:36:44,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (1/1) ... [2021-01-26 17:36:44,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (1/1) ... [2021-01-26 17:36:44,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:36:44,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:36:44,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:36:44,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:36:44,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (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 [2021-01-26 17:36:44,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:36:44,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:36:44,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:36:44,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:36:44,546 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:36:44,546 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:36:44,546 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:36:44,546 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:36:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:36:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:36:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:36:44,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:36:44,549 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:36:44,945 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:36:44,945 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:36:44,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:36:44 BoogieIcfgContainer [2021-01-26 17:36:44,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:36:44,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:36:44,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:36:44,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:36:44,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:36:43" (1/3) ... [2021-01-26 17:36:44,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bb112d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:36:44, skipping insertion in model container [2021-01-26 17:36:44,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:44" (2/3) ... [2021-01-26 17:36:44,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bb112d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:36:44, skipping insertion in model container [2021-01-26 17:36:44,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:36:44" (3/3) ... [2021-01-26 17:36:44,956 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.oepc.i [2021-01-26 17:36:44,972 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:36:44,972 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:36:44,976 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:36:44,977 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:36:45,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,008 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,008 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,009 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,009 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,012 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,012 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,023 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,023 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,023 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:45,026 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:36:45,040 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-26 17:36:45,064 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:36:45,064 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:36:45,064 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:36:45,064 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:36:45,064 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:36:45,065 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:36:45,065 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:36:45,065 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:36:45,077 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2021-01-26 17:36:45,172 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2021-01-26 17:36:45,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2021-01-26 17:36:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-26 17:36:45,213 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:45,214 INFO L504 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] [2021-01-26 17:36:45,214 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:45,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:45,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2021-01-26 17:36:45,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:45,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218266990] [2021-01-26 17:36:45,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:45,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218266990] [2021-01-26 17:36:45,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:45,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:36:45,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550894674] [2021-01-26 17:36:45,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:36:45,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:45,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:36:45,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:36:45,703 INFO L87 Difference]: Start difference. First operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-01-26 17:36:45,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:45,904 INFO L93 Difference]: Finished difference Result 1587 states and 4135 transitions. [2021-01-26 17:36:45,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:36:45,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2021-01-26 17:36:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:45,926 INFO L225 Difference]: With dead ends: 1587 [2021-01-26 17:36:45,926 INFO L226 Difference]: Without dead ends: 670 [2021-01-26 17:36:45,928 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:36:45,928 INFO L78 Accepts]: Start accepts. Automaton has 670 states. Word has length 37 [2021-01-26 17:36:45,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:45,930 INFO L481 AbstractCegarLoop]: Abstraction has 670 states. [2021-01-26 17:36:45,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-01-26 17:36:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states. [2021-01-26 17:36:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-26 17:36:45,936 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:45,936 INFO L504 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] [2021-01-26 17:36:45,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:36:45,937 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:45,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:45,938 INFO L82 PathProgramCache]: Analyzing trace with hash -192993615, now seen corresponding path program 1 times [2021-01-26 17:36:45,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:45,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261371692] [2021-01-26 17:36:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:46,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:46,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261371692] [2021-01-26 17:36:46,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:46,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:36:46,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306181245] [2021-01-26 17:36:46,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:36:46,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:46,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:36:46,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:36:46,094 INFO L87 Difference]: Start difference. First operand 670 states. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2021-01-26 17:36:46,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:46,228 INFO L93 Difference]: Finished difference Result 730 states and 1820 transitions. [2021-01-26 17:36:46,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:36:46,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2021-01-26 17:36:46,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:46,233 INFO L225 Difference]: With dead ends: 730 [2021-01-26 17:36:46,233 INFO L226 Difference]: Without dead ends: 590 [2021-01-26 17:36:46,234 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:36:46,234 INFO L78 Accepts]: Start accepts. Automaton has 590 states. Word has length 39 [2021-01-26 17:36:46,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:46,235 INFO L481 AbstractCegarLoop]: Abstraction has 590 states. [2021-01-26 17:36:46,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2021-01-26 17:36:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states. [2021-01-26 17:36:46,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-26 17:36:46,238 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:46,238 INFO L504 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] [2021-01-26 17:36:46,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:36:46,238 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:46,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1324573390, now seen corresponding path program 1 times [2021-01-26 17:36:46,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:46,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548645986] [2021-01-26 17:36:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:46,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548645986] [2021-01-26 17:36:46,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:46,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:36:46,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876277514] [2021-01-26 17:36:46,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:36:46,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:46,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:36:46,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:36:46,389 INFO L87 Difference]: Start difference. First operand 590 states. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2021-01-26 17:36:46,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:46,562 INFO L93 Difference]: Finished difference Result 790 states and 1958 transitions. [2021-01-26 17:36:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:36:46,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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 [2021-01-26 17:36:46,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:46,566 INFO L225 Difference]: With dead ends: 790 [2021-01-26 17:36:46,566 INFO L226 Difference]: Without dead ends: 445 [2021-01-26 17:36:46,567 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:36:46,567 INFO L78 Accepts]: Start accepts. Automaton has 445 states. Word has length 41 [2021-01-26 17:36:46,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:46,567 INFO L481 AbstractCegarLoop]: Abstraction has 445 states. [2021-01-26 17:36:46,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2021-01-26 17:36:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states. [2021-01-26 17:36:46,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 17:36:46,570 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:46,570 INFO L504 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] [2021-01-26 17:36:46,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:36:46,570 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:46,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:46,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1149488442, now seen corresponding path program 1 times [2021-01-26 17:36:46,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:46,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578866704] [2021-01-26 17:36:46,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:46,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:46,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578866704] [2021-01-26 17:36:46,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:46,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:36:46,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085599035] [2021-01-26 17:36:46,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:36:46,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:46,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:36:46,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:36:46,746 INFO L87 Difference]: Start difference. First operand 445 states. 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) [2021-01-26 17:36:46,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:46,893 INFO L93 Difference]: Finished difference Result 365 states and 857 transitions. [2021-01-26 17:36:46,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:36:46,893 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 [2021-01-26 17:36:46,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:46,894 INFO L225 Difference]: With dead ends: 365 [2021-01-26 17:36:46,894 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:36:46,895 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:36:46,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 42 [2021-01-26 17:36:46,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:46,895 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:36:46,895 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) [2021-01-26 17:36:46,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:36:46,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:36:46,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:36:46,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:36:46 BasicIcfg [2021-01-26 17:36:46,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:36:46,904 INFO L168 Benchmark]: Toolchain (without parser) took 3166.85 ms. Allocated memory is still 304.1 MB. Free memory was 277.6 MB in the beginning and 254.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:36:46,904 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 304.1 MB. Free memory was 275.1 MB in the beginning and 275.0 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:36:46,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.01 ms. Allocated memory is still 304.1 MB. Free memory was 276.7 MB in the beginning and 278.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. [2021-01-26 17:36:46,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.75 ms. Allocated memory is still 304.1 MB. Free memory was 278.7 MB in the beginning and 276.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:36:46,907 INFO L168 Benchmark]: Boogie Preprocessor took 25.82 ms. Allocated memory is still 304.1 MB. Free memory was 276.6 MB in the beginning and 275.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:36:46,907 INFO L168 Benchmark]: RCFGBuilder took 480.71 ms. Allocated memory is still 304.1 MB. Free memory was 275.6 MB in the beginning and 253.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:36:46,908 INFO L168 Benchmark]: TraceAbstraction took 1952.51 ms. Allocated memory is still 304.1 MB. Free memory was 252.5 MB in the beginning and 255.1 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:36:46,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 304.1 MB. Free memory was 275.1 MB in the beginning and 275.0 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 625.01 ms. Allocated memory is still 304.1 MB. Free memory was 276.7 MB in the beginning and 278.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 65.75 ms. Allocated memory is still 304.1 MB. Free memory was 278.7 MB in the beginning and 276.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.82 ms. Allocated memory is still 304.1 MB. Free memory was 276.6 MB in the beginning and 275.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 480.71 ms. Allocated memory is still 304.1 MB. Free memory was 275.6 MB in the beginning and 253.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1952.51 ms. Allocated memory is still 304.1 MB. Free memory was 252.5 MB in the beginning and 255.1 MB in the end (delta: -2.6 MB). There was no memory consumed. 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, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 297 SDtfs, 381 SDslu, 926 SDs, 0 SdLazy, 92 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 17567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...