/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_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:50:31,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:50:31,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:50:31,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 18:50:31,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:50:31,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:50:31,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:50:31,216 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 [2021-07-13 18:50:31,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:50:31,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:50:31,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:50:31,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:50:31,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:50:31,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:50:31,233 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:50:31,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:50:31,233 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:50:31,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:50:31,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:50:31,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:50:31,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:50:31,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:50:31,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:50:31,234 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:50:31,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:50:31,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:50:31,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:50:31,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:50:31,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:50:31,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:50:31,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:50:31,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:50:31,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:50:31,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:50:31,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:50:31,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:50:31,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:50:31,243 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:50:31,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:50:31,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:50:31,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:50:31,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:50:31,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:50:31,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:50:31,494 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:50:31,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-07-13 18:50:31,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e23d89c8/f8314020937f4fd89c1dec56e1899f2f/FLAGb1b781156 [2021-07-13 18:50:32,056 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:50:32,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2021-07-13 18:50:32,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e23d89c8/f8314020937f4fd89c1dec56e1899f2f/FLAGb1b781156 [2021-07-13 18:50:32,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e23d89c8/f8314020937f4fd89c1dec56e1899f2f [2021-07-13 18:50:32,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:50:32,588 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:50:32,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:50:32,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:50:32,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:50:32,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:32,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ca0fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32, skipping insertion in model container [2021-07-13 18:50:32,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:32,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:50:32,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:50:32,753 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_tso.oepc.i[950,963] [2021-07-13 18:50:32,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:50:32,867 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:50:32,880 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_tso.oepc.i[950,963] [2021-07-13 18:50:32,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:50:32,953 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:50:32,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32 WrapperNode [2021-07-13 18:50:32,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:50:32,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:50:32,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:50:32,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:50:32,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:32,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:32,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:50:32,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:50:32,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:50:32,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:50:33,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:33,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:33,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:33,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:33,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:33,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:33,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (1/1) ... [2021-07-13 18:50:33,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:50:33,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:50:33,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:50:33,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:50:33,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (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 [2021-07-13 18:50:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:50:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-13 18:50:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:50:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:50:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-13 18:50:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-13 18:50:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-13 18:50:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-13 18:50:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-13 18:50:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-13 18:50:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:50:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-13 18:50:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:50:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:50:33,100 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:50:33,448 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:50:33,448 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-13 18:50:33,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:50:33 BoogieIcfgContainer [2021-07-13 18:50:33,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:50:33,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:50:33,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:50:33,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:50:33,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:50:32" (1/3) ... [2021-07-13 18:50:33,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439085c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:50:33, skipping insertion in model container [2021-07-13 18:50:33,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:32" (2/3) ... [2021-07-13 18:50:33,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439085c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:50:33, skipping insertion in model container [2021-07-13 18:50:33,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:50:33" (3/3) ... [2021-07-13 18:50:33,456 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2021-07-13 18:50:33,462 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:50:33,463 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:50:33,463 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 18:50:33,463 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:50:33,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,494 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,500 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,501 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,501 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,503 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,506 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,506 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,510 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,511 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,513 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,513 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:50:33,517 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-13 18:50:33,532 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-13 18:50:33,551 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:50:33,552 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:50:33,552 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:50:33,552 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:50:33,552 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:50:33,552 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:50:33,552 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:50:33,552 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:50:33,561 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-07-13 18:50:33,741 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) [2021-07-13 18:50:33,758 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) [2021-07-13 18:50:33,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-07-13 18:50:33,782 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:50:33,782 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] [2021-07-13 18:50:33,783 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:50:33,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:50:33,789 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-07-13 18:50:33,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:50:33,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857255479] [2021-07-13 18:50:33,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:50:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:50:34,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:50:34,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:50:34,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857255479] [2021-07-13 18:50:34,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857255479] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:50:34,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:50:34,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:50:34,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23793366] [2021-07-13 18:50:34,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:50:34,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:50:34,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:50:34,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:50:34,114 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 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2021-07-13 18:50:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:50:34,321 INFO L93 Difference]: Finished difference Result 6343 states and 21547 transitions. [2021-07-13 18:50:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:50:34,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 [2021-07-13 18:50:34,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:50:34,371 INFO L225 Difference]: With dead ends: 6343 [2021-07-13 18:50:34,372 INFO L226 Difference]: Without dead ends: 4628 [2021-07-13 18:50:34,374 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 128.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:50:34,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4628 states. [2021-07-13 18:50:34,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4628 to 4628. [2021-07-13 18:50:34,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4628 states, 4627 states have (on average 3.38599524529933) internal successors, (15667), 4627 states have internal predecessors, (15667), 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) [2021-07-13 18:50:34,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 15667 transitions. [2021-07-13 18:50:34,630 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 15667 transitions. Word has length 49 [2021-07-13 18:50:34,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:50:34,633 INFO L482 AbstractCegarLoop]: Abstraction has 4628 states and 15667 transitions. [2021-07-13 18:50:34,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2021-07-13 18:50:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 15667 transitions. [2021-07-13 18:50:34,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-13 18:50:34,647 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:50:34,648 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] [2021-07-13 18:50:34,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:50:34,648 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:50:34,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:50:34,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1915177392, now seen corresponding path program 1 times [2021-07-13 18:50:34,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:50:34,651 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194452711] [2021-07-13 18:50:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:50:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:50:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:50:34,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:50:34,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194452711] [2021-07-13 18:50:34,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194452711] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:50:34,869 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:50:34,869 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:50:34,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173619515] [2021-07-13 18:50:34,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:50:34,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:50:34,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:50:34,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:50:34,871 INFO L87 Difference]: Start difference. First operand 4628 states and 15667 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-07-13 18:50:35,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:50:35,124 INFO L93 Difference]: Finished difference Result 6098 states and 20483 transitions. [2021-07-13 18:50:35,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:50:35,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2021-07-13 18:50:35,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:50:35,141 INFO L225 Difference]: With dead ends: 6098 [2021-07-13 18:50:35,141 INFO L226 Difference]: Without dead ends: 3158 [2021-07-13 18:50:35,142 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 144.3ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:50:35,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2021-07-13 18:50:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3158. [2021-07-13 18:50:35,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 3157 states have (on average 3.239784605638264) internal successors, (10228), 3157 states have internal predecessors, (10228), 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) [2021-07-13 18:50:35,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 10228 transitions. [2021-07-13 18:50:35,250 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 10228 transitions. Word has length 51 [2021-07-13 18:50:35,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:50:35,253 INFO L482 AbstractCegarLoop]: Abstraction has 3158 states and 10228 transitions. [2021-07-13 18:50:35,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-07-13 18:50:35,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 10228 transitions. [2021-07-13 18:50:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-13 18:50:35,261 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:50:35,261 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] [2021-07-13 18:50:35,262 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:50:35,262 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:50:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:50:35,268 INFO L82 PathProgramCache]: Analyzing trace with hash 79481305, now seen corresponding path program 1 times [2021-07-13 18:50:35,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:50:35,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141050436] [2021-07-13 18:50:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:50:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:50:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:50:35,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:50:35,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141050436] [2021-07-13 18:50:35,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141050436] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:50:35,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:50:35,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:50:35,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795955507] [2021-07-13 18:50:35,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:50:35,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:50:35,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:50:35,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:50:35,413 INFO L87 Difference]: Start difference. First operand 3158 states and 10228 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-07-13 18:50:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:50:35,539 INFO L93 Difference]: Finished difference Result 3550 states and 11418 transitions. [2021-07-13 18:50:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:50:35,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-07-13 18:50:35,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:50:35,554 INFO L225 Difference]: With dead ends: 3550 [2021-07-13 18:50:35,554 INFO L226 Difference]: Without dead ends: 2990 [2021-07-13 18:50:35,555 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 97.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:50:35,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-07-13 18:50:35,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2990. [2021-07-13 18:50:35,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2990 states, 2989 states have (on average 3.2191368350618936) internal successors, (9622), 2989 states have internal predecessors, (9622), 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) [2021-07-13 18:50:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 9622 transitions. [2021-07-13 18:50:35,636 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 9622 transitions. Word has length 54 [2021-07-13 18:50:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:50:35,637 INFO L482 AbstractCegarLoop]: Abstraction has 2990 states and 9622 transitions. [2021-07-13 18:50:35,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-07-13 18:50:35,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 9622 transitions. [2021-07-13 18:50:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-13 18:50:35,643 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:50:35,643 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] [2021-07-13 18:50:35,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:50:35,644 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:50:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:50:35,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1066159869, now seen corresponding path program 1 times [2021-07-13 18:50:35,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:50:35,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476897702] [2021-07-13 18:50:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:50:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:50:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:50:35,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:50:35,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476897702] [2021-07-13 18:50:35,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476897702] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:50:35,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:50:35,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:50:35,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014307789] [2021-07-13 18:50:35,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:50:35,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:50:35,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:50:35,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:50:35,751 INFO L87 Difference]: Start difference. First operand 2990 states and 9622 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) [2021-07-13 18:50:35,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:50:35,873 INFO L93 Difference]: Finished difference Result 4250 states and 13571 transitions. [2021-07-13 18:50:35,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:50:35,874 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 [2021-07-13 18:50:35,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:50:35,882 INFO L225 Difference]: With dead ends: 4250 [2021-07-13 18:50:35,882 INFO L226 Difference]: Without dead ends: 1877 [2021-07-13 18:50:35,882 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 100.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:50:35,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2021-07-13 18:50:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2021-07-13 18:50:35,913 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) [2021-07-13 18:50:35,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 5749 transitions. [2021-07-13 18:50:35,918 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 5749 transitions. Word has length 55 [2021-07-13 18:50:35,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:50:35,918 INFO L482 AbstractCegarLoop]: Abstraction has 1877 states and 5749 transitions. [2021-07-13 18:50:35,918 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) [2021-07-13 18:50:35,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 5749 transitions. [2021-07-13 18:50:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-13 18:50:35,922 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:50:35,922 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] [2021-07-13 18:50:35,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:50:35,923 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:50:35,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:50:35,923 INFO L82 PathProgramCache]: Analyzing trace with hash -212208054, now seen corresponding path program 1 times [2021-07-13 18:50:35,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:50:35,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55545529] [2021-07-13 18:50:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:50:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:50:35,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:50:35,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:50:35,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55545529] [2021-07-13 18:50:35,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55545529] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:50:35,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:50:35,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-13 18:50:35,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188608390] [2021-07-13 18:50:35,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-13 18:50:35,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:50:35,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-13 18:50:35,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-13 18:50:35,999 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) [2021-07-13 18:50:36,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:50:36,082 INFO L93 Difference]: Finished difference Result 1749 states and 5333 transitions. [2021-07-13 18:50:36,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 18:50:36,082 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 [2021-07-13 18:50:36,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:50:36,082 INFO L225 Difference]: With dead ends: 1749 [2021-07-13 18:50:36,082 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 18:50:36,082 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 94.9ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:50:36,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 18:50:36,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 18:50:36,083 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) [2021-07-13 18:50:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 18:50:36,083 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-07-13 18:50:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:50:36,083 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 18:50:36,083 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) [2021-07-13 18:50:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 18:50:36,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 18:50:36,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 18:50:36,085 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:50:36,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:50:36 BasicIcfg [2021-07-13 18:50:36,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:50:36,088 INFO L168 Benchmark]: Toolchain (without parser) took 3499.52 ms. Allocated memory was 181.4 MB in the beginning and 368.1 MB in the end (delta: 186.6 MB). Free memory was 145.9 MB in the beginning and 276.2 MB in the end (delta: -130.3 MB). Peak memory consumption was 58.3 MB. Max. memory is 8.0 GB. [2021-07-13 18:50:36,088 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 181.4 MB. Free memory was 164.2 MB in the beginning and 164.1 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:50:36,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.51 ms. Allocated memory is still 181.4 MB. Free memory was 145.6 MB in the beginning and 154.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. [2021-07-13 18:50:36,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.59 ms. Allocated memory is still 181.4 MB. Free memory was 154.8 MB in the beginning and 153.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:50:36,089 INFO L168 Benchmark]: Boogie Preprocessor took 31.29 ms. Allocated memory is still 181.4 MB. Free memory was 153.1 MB in the beginning and 151.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:50:36,089 INFO L168 Benchmark]: RCFGBuilder took 420.89 ms. Allocated memory is still 181.4 MB. Free memory was 151.5 MB in the beginning and 128.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:50:36,089 INFO L168 Benchmark]: TraceAbstraction took 2634.80 ms. Allocated memory was 181.4 MB in the beginning and 368.1 MB in the end (delta: 186.6 MB). Free memory was 127.6 MB in the beginning and 276.2 MB in the end (delta: -148.6 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. [2021-07-13 18:50:36,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 181.4 MB. Free memory was 164.2 MB in the beginning and 164.1 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 365.51 ms. Allocated memory is still 181.4 MB. Free memory was 145.6 MB in the beginning and 154.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.59 ms. Allocated memory is still 181.4 MB. Free memory was 154.8 MB in the beginning and 153.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.29 ms. Allocated memory is still 181.4 MB. Free memory was 153.1 MB in the beginning and 151.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 420.89 ms. Allocated memory is still 181.4 MB. Free memory was 151.5 MB in the beginning and 128.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2634.80 ms. Allocated memory was 181.4 MB in the beginning and 368.1 MB in the end (delta: 186.6 MB). Free memory was 127.6 MB in the beginning and 276.2 MB in the end (delta: -148.6 MB). Peak memory consumption was 38.8 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: 2533.9ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 70.9ms, AutomataDifference: 914.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 188.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 531 SDtfs, 664 SDslu, 1703 SDs, 0 SdLazy, 158 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 141.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 565.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5559occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 471.1ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.4ms SsaConstructionTime, 172.0ms SatisfiabilityAnalysisTime, 541.0ms InterpolantComputationTime, 267 NumberOfCodeBlocks, 267 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 840 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...