/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:47:46,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:47:46,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:47:46,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:47:46,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 16:47:46,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 16:47:46,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 16:47:46,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 16:47:46,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 16:47:46,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 16:47:46,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 16:47:46,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 16:47:46,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 16:47:46,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 16:47:46,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 16:47:46,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 16:47:46,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 16:47:46,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:47:46,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:47:46,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:47:46,992 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 [2021-07-09 16:47:47,009 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:47:47,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:47:47,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:47:47,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:47:47,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:47:47,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:47:47,012 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:47:47,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:47:47,012 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:47:47,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:47:47,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:47:47,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:47:47,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:47:47,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:47:47,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:47:47,013 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:47:47,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:47:47,014 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:47:47,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:47:47,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:47:47,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:47:47,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:47:47,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:47:47,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:47:47,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:47:47,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:47:47,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:47:47,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:47:47,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:47:47,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:47:47,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:47:47,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:47:47,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:47:47,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:47:47,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:47:47,285 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:47:47,286 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:47:47,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-07-09 16:47:47,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57d5c36d/f9d3c41b0795474dbfc728e878eecf97/FLAGcd05d9e62 [2021-07-09 16:47:47,766 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:47:47,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-07-09 16:47:47,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57d5c36d/f9d3c41b0795474dbfc728e878eecf97/FLAGcd05d9e62 [2021-07-09 16:47:47,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57d5c36d/f9d3c41b0795474dbfc728e878eecf97 [2021-07-09 16:47:47,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:47:47,793 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:47:47,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:47:47,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:47:47,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:47:47,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:47:47" (1/1) ... [2021-07-09 16:47:47,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1788a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:47, skipping insertion in model container [2021-07-09 16:47:47,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:47:47" (1/1) ... [2021-07-09 16:47:47,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:47:47,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:47:48,019 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i[949,962] [2021-07-09 16:47:48,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:47:48,153 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:47:48,161 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i[949,962] [2021-07-09 16:47:48,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:47:48,221 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:47:48,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48 WrapperNode [2021-07-09 16:47:48,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:47:48,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:47:48,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:47:48,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:47:48,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (1/1) ... [2021-07-09 16:47:48,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (1/1) ... [2021-07-09 16:47:48,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:47:48,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:47:48,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:47:48,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:47:48,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (1/1) ... [2021-07-09 16:47:48,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (1/1) ... [2021-07-09 16:47:48,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (1/1) ... [2021-07-09 16:47:48,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (1/1) ... [2021-07-09 16:47:48,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (1/1) ... [2021-07-09 16:47:48,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (1/1) ... [2021-07-09 16:47:48,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (1/1) ... [2021-07-09 16:47:48,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:47:48,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:47:48,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:47:48,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:47:48,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (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 [2021-07-09 16:47:48,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:47:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:47:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:47:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:47:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 16:47:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 16:47:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 16:47:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 16:47:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 16:47:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 16:47:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:47:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:47:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:47:48,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:47:48,349 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:47:48,631 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:47:48,631 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:47:48,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:47:48 BoogieIcfgContainer [2021-07-09 16:47:48,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:47:48,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:47:48,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:47:48,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:47:48,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:47:47" (1/3) ... [2021-07-09 16:47:48,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71408b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:47:48, skipping insertion in model container [2021-07-09 16:47:48,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:47:48" (2/3) ... [2021-07-09 16:47:48,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71408b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:47:48, skipping insertion in model container [2021-07-09 16:47:48,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:47:48" (3/3) ... [2021-07-09 16:47:48,639 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt.i [2021-07-09 16:47:48,643 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:47:48,643 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:47:48,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:47:48,644 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:47:48,664 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,664 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,664 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,664 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,664 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,665 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,665 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,667 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,668 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,668 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,668 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,670 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,670 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,675 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,675 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,679 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:47:48,686 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:47:48,705 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 16:47:48,730 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:47:48,731 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:47:48,731 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:47:48,731 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:47:48,731 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:47:48,731 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:47:48,731 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:47:48,731 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:47:48,745 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-07-09 16:47:48,918 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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) [2021-07-09 16:47:48,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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) [2021-07-09 16:47:48,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-07-09 16:47:48,955 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:47:48,955 INFO L508 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, 1, 1, 1, 1] [2021-07-09 16:47:48,955 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:47:48,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:47:48,959 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-07-09 16:47:48,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:47:48,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285465841] [2021-07-09 16:47:48,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:47:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:47:49,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:47:49,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:47:49,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285465841] [2021-07-09 16:47:49,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285465841] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:47:49,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:47:49,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:47:49,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817054105] [2021-07-09 16:47:49,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:47:49,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:47:49,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:47:49,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:47:49,350 INFO L87 Difference]: Start difference. First operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-07-09 16:47:49,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:47:49,713 INFO L93 Difference]: Finished difference Result 9048 states and 30512 transitions. [2021-07-09 16:47:49,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:47:49,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2021-07-09 16:47:49,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:47:49,761 INFO L225 Difference]: With dead ends: 9048 [2021-07-09 16:47:49,762 INFO L226 Difference]: Without dead ends: 5948 [2021-07-09 16:47:49,763 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 224.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:47:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2021-07-09 16:47:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 5156. [2021-07-09 16:47:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 3.3594568380213383) internal successors, (17318), 5155 states have internal predecessors, (17318), 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) [2021-07-09 16:47:49,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 17318 transitions. [2021-07-09 16:47:49,994 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 17318 transitions. Word has length 49 [2021-07-09 16:47:49,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:47:49,995 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 17318 transitions. [2021-07-09 16:47:49,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-07-09 16:47:49,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 17318 transitions. [2021-07-09 16:47:50,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-07-09 16:47:50,004 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:47:50,005 INFO L508 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, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:47:50,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:47:50,005 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:47:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:47:50,006 INFO L82 PathProgramCache]: Analyzing trace with hash 2138163718, now seen corresponding path program 1 times [2021-07-09 16:47:50,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:47:50,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855915694] [2021-07-09 16:47:50,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:47:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:47:50,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:47:50,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:47:50,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855915694] [2021-07-09 16:47:50,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855915694] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:47:50,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:47:50,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:47:50,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701739901] [2021-07-09 16:47:50,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:47:50,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:47:50,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:47:50,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:47:50,132 INFO L87 Difference]: Start difference. First operand 5156 states and 17318 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2021-07-09 16:47:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:47:50,325 INFO L93 Difference]: Finished difference Result 6746 states and 22534 transitions. [2021-07-09 16:47:50,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:47:50,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2021-07-09 16:47:50,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:47:50,342 INFO L225 Difference]: With dead ends: 6746 [2021-07-09 16:47:50,342 INFO L226 Difference]: Without dead ends: 3270 [2021-07-09 16:47:50,343 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 105.7ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:47:50,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2021-07-09 16:47:50,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 3270. [2021-07-09 16:47:50,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 3269 states have (on average 3.241358213520954) internal successors, (10596), 3269 states have internal predecessors, (10596), 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) [2021-07-09 16:47:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 10596 transitions. [2021-07-09 16:47:50,432 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 10596 transitions. Word has length 52 [2021-07-09 16:47:50,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:47:50,433 INFO L482 AbstractCegarLoop]: Abstraction has 3270 states and 10596 transitions. [2021-07-09 16:47:50,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2021-07-09 16:47:50,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 10596 transitions. [2021-07-09 16:47:50,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-09 16:47:50,440 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:47:50,440 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:47:50,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:47:50,441 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:47:50,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:47:50,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1066159869, now seen corresponding path program 1 times [2021-07-09 16:47:50,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:47:50,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849712539] [2021-07-09 16:47:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:47:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:47:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:47:50,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:47:50,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849712539] [2021-07-09 16:47:50,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849712539] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:47:50,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:47:50,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:47:50,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591847921] [2021-07-09 16:47:50,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:47:50,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:47:50,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:47:50,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:47:50,516 INFO L87 Difference]: Start difference. First operand 3270 states and 10596 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-07-09 16:47:50,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:47:50,647 INFO L93 Difference]: Finished difference Result 4490 states and 14403 transitions. [2021-07-09 16:47:50,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:47:50,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2021-07-09 16:47:50,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:47:50,656 INFO L225 Difference]: With dead ends: 4490 [2021-07-09 16:47:50,656 INFO L226 Difference]: Without dead ends: 1877 [2021-07-09 16:47:50,657 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 98.0ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:47:50,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2021-07-09 16:47:50,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2021-07-09 16:47:50,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1876 states have (on average 3.064498933901919) internal successors, (5749), 1876 states have internal predecessors, (5749), 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) [2021-07-09 16:47:50,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 5749 transitions. [2021-07-09 16:47:50,695 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 5749 transitions. Word has length 55 [2021-07-09 16:47:50,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:47:50,697 INFO L482 AbstractCegarLoop]: Abstraction has 1877 states and 5749 transitions. [2021-07-09 16:47:50,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-07-09 16:47:50,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 5749 transitions. [2021-07-09 16:47:50,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 16:47:50,701 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:47:50,701 INFO L508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:47:50,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:47:50,701 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:47:50,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:47:50,702 INFO L82 PathProgramCache]: Analyzing trace with hash -212208054, now seen corresponding path program 1 times [2021-07-09 16:47:50,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:47:50,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398891787] [2021-07-09 16:47:50,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:47:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:47:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:47:50,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:47:50,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398891787] [2021-07-09 16:47:50,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398891787] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:47:50,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:47:50,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:47:50,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90621306] [2021-07-09 16:47:50,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:47:50,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:47:50,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:47:50,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:47:50,824 INFO L87 Difference]: Start difference. First operand 1877 states and 5749 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2021-07-09 16:47:50,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:47:50,888 INFO L93 Difference]: Finished difference Result 1749 states and 5333 transitions. [2021-07-09 16:47:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:47:50,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2021-07-09 16:47:50,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:47:50,889 INFO L225 Difference]: With dead ends: 1749 [2021-07-09 16:47:50,889 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:47:50,889 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 71.5ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:47:50,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:47:50,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:47:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:47:50,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:47:50,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-07-09 16:47:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:47:50,890 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:47:50,890 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2021-07-09 16:47:50,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:47:50,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:47:50,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:47:50,892 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:47:50,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:47:50 BasicIcfg [2021-07-09 16:47:50,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:47:50,894 INFO L168 Benchmark]: Toolchain (without parser) took 3101.18 ms. Allocated memory was 174.1 MB in the beginning and 429.9 MB in the end (delta: 255.9 MB). Free memory was 137.2 MB in the beginning and 256.2 MB in the end (delta: -119.0 MB). Peak memory consumption was 137.5 MB. Max. memory is 8.0 GB. [2021-07-09 16:47:50,895 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 174.1 MB. Free memory was 155.2 MB in the beginning and 155.1 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:47:50,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.83 ms. Allocated memory is still 174.1 MB. Free memory was 137.0 MB in the beginning and 146.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-09 16:47:50,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.32 ms. Allocated memory is still 174.1 MB. Free memory was 146.7 MB in the beginning and 144.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:47:50,895 INFO L168 Benchmark]: Boogie Preprocessor took 16.45 ms. Allocated memory is still 174.1 MB. Free memory was 144.8 MB in the beginning and 143.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:47:50,896 INFO L168 Benchmark]: RCFGBuilder took 357.55 ms. Allocated memory is still 174.1 MB. Free memory was 143.5 MB in the beginning and 119.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:47:50,896 INFO L168 Benchmark]: TraceAbstraction took 2259.22 ms. Allocated memory was 174.1 MB in the beginning and 429.9 MB in the end (delta: 255.9 MB). Free memory was 119.4 MB in the beginning and 256.2 MB in the end (delta: -136.8 MB). Peak memory consumption was 120.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:47:50,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 174.1 MB. Free memory was 155.2 MB in the beginning and 155.1 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 425.83 ms. Allocated memory is still 174.1 MB. Free memory was 137.0 MB in the beginning and 146.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.32 ms. Allocated memory is still 174.1 MB. Free memory was 146.7 MB in the beginning and 144.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.45 ms. Allocated memory is still 174.1 MB. Free memory was 144.8 MB in the beginning and 143.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 357.55 ms. Allocated memory is still 174.1 MB. Free memory was 143.5 MB in the beginning and 119.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2259.22 ms. Allocated memory was 174.1 MB in the beginning and 429.9 MB in the end (delta: 255.9 MB). Free memory was 119.4 MB in the beginning and 256.2 MB in the end (delta: -136.8 MB). Peak memory consumption was 120.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2162.4ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 56.2ms, AutomataDifference: 864.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 187.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 443 SDtfs, 683 SDslu, 1439 SDs, 0 SdLazy, 146 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 149.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 500.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5559occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 349.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 792 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.8ms SsaConstructionTime, 123.8ms SatisfiabilityAnalysisTime, 415.8ms InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 1134 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...