/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:20:50,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:20:50,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:20:50,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:20:50,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:20:50,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:20:50,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:20:50,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:20:50,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:20:50,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:20:50,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:20:50,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:20:50,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:20:51,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:20:51,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:20:51,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:20:51,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:20:51,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:20:51,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:20:51,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:20:51,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:20:51,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:20:51,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:20:51,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:20:51,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:20:51,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:20:51,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:20:51,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:20:51,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:20:51,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:20:51,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:20:51,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:20:51,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:20:51,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:20:51,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:20:51,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:20:51,056 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-keepdead.epf [2021-01-20 21:20:51,091 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:20:51,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:20:51,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:20:51,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:20:51,094 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:20:51,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:20:51,094 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:20:51,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:20:51,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:20:51,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:20:51,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:20:51,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:20:51,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:20:51,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:20:51,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:20:51,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:20:51,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:20:51,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:20:51,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:20:51,097 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:20:51,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:20:51,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:20:51,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:20:51,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:20:51,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:20:51,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:20:51,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:20:51,099 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:20:51,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:20:51,100 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:20:51,100 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:20:51,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:20:51,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:20:51,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:20:51,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:20:51,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:20:51,586 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:20:51,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-01-20 21:20:51,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235c931a9/2f798a49751649879d21f9181f9419f2/FLAGd9f1af639 [2021-01-20 21:20:52,474 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:20:52,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-01-20 21:20:52,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235c931a9/2f798a49751649879d21f9181f9419f2/FLAGd9f1af639 [2021-01-20 21:20:52,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/235c931a9/2f798a49751649879d21f9181f9419f2 [2021-01-20 21:20:52,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:20:52,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:20:52,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:20:52,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:20:52,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:20:52,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:20:52" (1/1) ... [2021-01-20 21:20:52,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93435bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:52, skipping insertion in model container [2021-01-20 21:20:52,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:20:52" (1/1) ... [2021-01-20 21:20:52,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:20:52,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:20:53,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:20:53,263 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:20:53,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:20:53,461 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:20:53,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53 WrapperNode [2021-01-20 21:20:53,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:20:53,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:20:53,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:20:53,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:20:53,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (1/1) ... [2021-01-20 21:20:53,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (1/1) ... [2021-01-20 21:20:53,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:20:53,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:20:53,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:20:53,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:20:53,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (1/1) ... [2021-01-20 21:20:53,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (1/1) ... [2021-01-20 21:20:53,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (1/1) ... [2021-01-20 21:20:53,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (1/1) ... [2021-01-20 21:20:53,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (1/1) ... [2021-01-20 21:20:53,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (1/1) ... [2021-01-20 21:20:53,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (1/1) ... [2021-01-20 21:20:53,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:20:53,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:20:53,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:20:53,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:20:53,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (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 [2021-01-20 21:20:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:20:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:20:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:20:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:20:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:20:53,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:20:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:20:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:20:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:20:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:20:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:20:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:20:53,725 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:20:54,328 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:20:54,329 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:20:54,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:20:54 BoogieIcfgContainer [2021-01-20 21:20:54,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:20:54,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:20:54,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:20:54,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:20:54,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:20:52" (1/3) ... [2021-01-20 21:20:54,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3509b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:20:54, skipping insertion in model container [2021-01-20 21:20:54,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:20:53" (2/3) ... [2021-01-20 21:20:54,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3509b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:20:54, skipping insertion in model container [2021-01-20 21:20:54,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:20:54" (3/3) ... [2021-01-20 21:20:54,346 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc.i [2021-01-20 21:20:54,365 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:20:54,366 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:20:54,370 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:20:54,371 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:20:54,411 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,411 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,411 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,412 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,412 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,413 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,417 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,417 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,418 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,418 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,424 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,434 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,435 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,435 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:20:54,438 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:20:54,453 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 21:20:54,492 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:20:54,494 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:20:54,494 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:20:54,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:20:54,495 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:20:54,495 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:20:54,495 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:20:54,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:20:54,515 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2021-01-20 21:20:54,627 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) [2021-01-20 21:20:54,635 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) [2021-01-20 21:20:54,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-20 21:20:54,656 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:20:54,657 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] [2021-01-20 21:20:54,657 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:20:54,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:20:54,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2021-01-20 21:20:54,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:20:54,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077914426] [2021-01-20 21:20:54,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:20:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:20:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:20:55,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077914426] [2021-01-20 21:20:55,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:20:55,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:20:55,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220607888] [2021-01-20 21:20:55,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:20:55,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:20:55,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:20:55,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:20:55,117 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) [2021-01-20 21:20:55,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:20:55,367 INFO L93 Difference]: Finished difference Result 1587 states and 4135 transitions. [2021-01-20 21:20:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:20:55,370 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 [2021-01-20 21:20:55,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:20:55,373 INFO L769 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 [2021-01-20 21:20:55,373 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 4135 transitions. Word has length 37 [2021-01-20 21:20:55,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:20:55,375 INFO L481 AbstractCegarLoop]: Abstraction has 1587 states and 4135 transitions. [2021-01-20 21:20:55,376 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) [2021-01-20 21:20:55,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 4135 transitions. [2021-01-20 21:20:55,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-20 21:20:55,383 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:20:55,383 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] [2021-01-20 21:20:55,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:20:55,384 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:20:55,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:20:55,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1963823439, now seen corresponding path program 1 times [2021-01-20 21:20:55,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:20:55,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835867008] [2021-01-20 21:20:55,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:20:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:20:55,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:20:55,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835867008] [2021-01-20 21:20:55,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:20:55,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:20:55,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497273982] [2021-01-20 21:20:55,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:20:55,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:20:55,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:20:55,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:20:55,563 INFO L87 Difference]: Start difference. First operand 1587 states and 4135 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 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) [2021-01-20 21:20:55,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:20:55,877 INFO L93 Difference]: Finished difference Result 2167 states and 5559 transitions. [2021-01-20 21:20:55,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:20:55,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 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 [2021-01-20 21:20:55,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:20:55,880 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:20:55,880 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 5559 transitions. Word has length 39 [2021-01-20 21:20:55,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:20:55,881 INFO L481 AbstractCegarLoop]: Abstraction has 2167 states and 5559 transitions. [2021-01-20 21:20:55,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 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) [2021-01-20 21:20:55,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 5559 transitions. [2021-01-20 21:20:55,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 21:20:55,886 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:20:55,887 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] [2021-01-20 21:20:55,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:20:55,887 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:20:55,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:20:55,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1149488442, now seen corresponding path program 1 times [2021-01-20 21:20:55,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:20:55,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791742810] [2021-01-20 21:20:55,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:20:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:20:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:20:56,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791742810] [2021-01-20 21:20:56,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:20:56,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:20:56,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461508110] [2021-01-20 21:20:56,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:20:56,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:20:56,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:20:56,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:20:56,109 INFO L87 Difference]: Start difference. First operand 2167 states and 5559 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2021-01-20 21:20:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:20:56,274 INFO L93 Difference]: Finished difference Result 1700 states and 4188 transitions. [2021-01-20 21:20:56,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:20:56,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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 [2021-01-20 21:20:56,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:20:56,276 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 [2021-01-20 21:20:56,276 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 4188 transitions. Word has length 42 [2021-01-20 21:20:56,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:20:56,276 INFO L481 AbstractCegarLoop]: Abstraction has 1700 states and 4188 transitions. [2021-01-20 21:20:56,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2021-01-20 21:20:56,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 4188 transitions. [2021-01-20 21:20:56,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 21:20:56,281 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:20:56,281 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, 1] [2021-01-20 21:20:56,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:20:56,282 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:20:56,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:20:56,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1597818113, now seen corresponding path program 1 times [2021-01-20 21:20:56,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:20:56,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661137773] [2021-01-20 21:20:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:20:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:20:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:20:56,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661137773] [2021-01-20 21:20:56,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:20:56,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:20:56,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319479987] [2021-01-20 21:20:56,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:20:56,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:20:56,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:20:56,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:20:56,464 INFO L87 Difference]: Start difference. First operand 1700 states and 4188 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-01-20 21:20:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:20:56,728 INFO L93 Difference]: Finished difference Result 1145 states and 2711 transitions. [2021-01-20 21:20:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:20:56,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 43 [2021-01-20 21:20:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:20:56,730 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:20:56,730 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 2711 transitions. Word has length 43 [2021-01-20 21:20:56,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:20:56,731 INFO L481 AbstractCegarLoop]: Abstraction has 1145 states and 2711 transitions. [2021-01-20 21:20:56,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-01-20 21:20:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 2711 transitions. [2021-01-20 21:20:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:20:56,735 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:20:56,735 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, 1, 1, 1] [2021-01-20 21:20:56,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:20:56,736 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:20:56,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:20:56,736 INFO L82 PathProgramCache]: Analyzing trace with hash 878840992, now seen corresponding path program 1 times [2021-01-20 21:20:56,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:20:56,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538036899] [2021-01-20 21:20:56,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:20:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:20:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:20:56,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538036899] [2021-01-20 21:20:56,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:20:56,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:20:56,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490236379] [2021-01-20 21:20:56,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:20:56,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:20:56,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:20:56,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:20:56,864 INFO L87 Difference]: Start difference. First operand 1145 states and 2711 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-01-20 21:20:56,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:20:56,984 INFO L93 Difference]: Finished difference Result 1501 states and 3540 transitions. [2021-01-20 21:20:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:20:56,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2021-01-20 21:20:56,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:20:56,986 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:20:56,986 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 3540 transitions. Word has length 45 [2021-01-20 21:20:56,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:20:56,986 INFO L481 AbstractCegarLoop]: Abstraction has 1501 states and 3540 transitions. [2021-01-20 21:20:56,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-01-20 21:20:56,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 3540 transitions. [2021-01-20 21:20:56,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:20:56,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:20:56,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:20:56 BasicIcfg [2021-01-20 21:20:56,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:20:56,999 INFO L168 Benchmark]: Toolchain (without parser) took 4273.61 ms. Allocated memory was 306.2 MB in the beginning and 369.1 MB in the end (delta: 62.9 MB). Free memory was 281.6 MB in the beginning and 276.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 69.9 MB. Max. memory is 16.0 GB. [2021-01-20 21:20:56,999 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 306.2 MB. Free memory is still 276.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:20:57,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.51 ms. Allocated memory is still 306.2 MB. Free memory was 281.4 MB in the beginning and 251.2 MB in the end (delta: 30.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:20:57,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.31 ms. Allocated memory is still 306.2 MB. Free memory was 251.2 MB in the beginning and 249.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:20:57,002 INFO L168 Benchmark]: Boogie Preprocessor took 29.43 ms. Allocated memory is still 306.2 MB. Free memory was 249.3 MB in the beginning and 248.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:20:57,003 INFO L168 Benchmark]: RCFGBuilder took 775.84 ms. Allocated memory is still 306.2 MB. Free memory was 247.9 MB in the beginning and 269.0 MB in the end (delta: -21.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:20:57,004 INFO L168 Benchmark]: TraceAbstraction took 2659.72 ms. Allocated memory was 306.2 MB in the beginning and 369.1 MB in the end (delta: 62.9 MB). Free memory was 269.0 MB in the beginning and 276.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 57.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:20:57,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 306.2 MB. Free memory is still 276.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 736.51 ms. Allocated memory is still 306.2 MB. Free memory was 281.4 MB in the beginning and 251.2 MB in the end (delta: 30.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 64.31 ms. Allocated memory is still 306.2 MB. Free memory was 251.2 MB in the beginning and 249.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.43 ms. Allocated memory is still 306.2 MB. Free memory was 249.3 MB in the beginning and 248.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 775.84 ms. Allocated memory is still 306.2 MB. Free memory was 247.9 MB in the beginning and 269.0 MB in the end (delta: -21.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2659.72 ms. Allocated memory was 306.2 MB in the beginning and 369.1 MB in the end (delta: 62.9 MB). Free memory was 269.0 MB in the beginning and 276.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 57.1 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, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 423 SDtfs, 715 SDslu, 1439 SDs, 0 SdLazy, 177 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2167occurred in iteration=2, 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, 0.7s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 21553 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...