/usr/bin/java -Xmx16000000000 -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/safe006_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:28:51,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:28:51,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:28:51,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:28:51,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:28:51,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:28:51,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:28:51,131 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 [2021-03-10 17:28:51,156 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:28:51,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:28:51,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:28:51,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:28:51,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:28:51,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:28:51,159 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:28:51,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:28:51,159 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:28:51,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:28:51,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:28:51,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:28:51,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:28:51,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:28:51,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:28:51,161 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:28:51,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:28:51,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:28:51,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:28:51,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:28:51,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:28:51,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:28:51,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:28:51,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:28:51,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:28:51,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:28:51,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:28:51,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:28:51,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:28:51,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:28:51,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:28:51,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:28:51,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:28:51,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:28:51,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:28:51,411 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:28:51,412 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:28:51,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2021-03-10 17:28:51,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac97dfd3/9176924e639547498e3c4a150c5bda85/FLAG09a4a3c6d [2021-03-10 17:28:51,902 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:28:51,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2021-03-10 17:28:51,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac97dfd3/9176924e639547498e3c4a150c5bda85/FLAG09a4a3c6d [2021-03-10 17:28:51,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac97dfd3/9176924e639547498e3c4a150c5bda85 [2021-03-10 17:28:51,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:28:51,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:28:51,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:28:51,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:28:51,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:28:51,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:28:51" (1/1) ... [2021-03-10 17:28:51,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283b9c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:51, skipping insertion in model container [2021-03-10 17:28:51,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:28:51" (1/1) ... [2021-03-10 17:28:51,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:28:51,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:28:52,062 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i[949,962] [2021-03-10 17:28:52,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:28:52,183 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:28:52,192 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i[949,962] [2021-03-10 17:28:52,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:28:52,265 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:28:52,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52 WrapperNode [2021-03-10 17:28:52,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:28:52,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:28:52,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:28:52,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:28:52,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (1/1) ... [2021-03-10 17:28:52,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (1/1) ... [2021-03-10 17:28:52,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:28:52,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:28:52,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:28:52,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:28:52,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (1/1) ... [2021-03-10 17:28:52,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (1/1) ... [2021-03-10 17:28:52,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (1/1) ... [2021-03-10 17:28:52,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (1/1) ... [2021-03-10 17:28:52,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (1/1) ... [2021-03-10 17:28:52,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (1/1) ... [2021-03-10 17:28:52,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (1/1) ... [2021-03-10 17:28:52,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:28:52,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:28:52,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:28:52,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:28:52,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (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 [2021-03-10 17:28:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:28:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:28:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:28:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:28:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:28:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:28:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:28:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:28:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:28:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:28:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:28:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:28:52,391 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:28:52,654 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:28:52,655 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:28:52,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:28:52 BoogieIcfgContainer [2021-03-10 17:28:52,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:28:52,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:28:52,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:28:52,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:28:52,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:28:51" (1/3) ... [2021-03-10 17:28:52,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@821eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:28:52, skipping insertion in model container [2021-03-10 17:28:52,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:52" (2/3) ... [2021-03-10 17:28:52,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@821eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:28:52, skipping insertion in model container [2021-03-10 17:28:52,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:28:52" (3/3) ... [2021-03-10 17:28:52,661 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2021-03-10 17:28:52,664 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:28:52,665 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:28:52,668 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:28:52,668 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:28:52,691 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,692 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,692 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,693 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,693 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,694 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,694 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,694 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,695 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,695 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,699 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,699 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,699 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,699 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,703 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,704 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:52,705 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:28:52,717 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-10 17:28:52,739 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:28:52,739 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:28:52,740 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:28:52,740 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:28:52,740 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:28:52,740 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:28:52,740 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:28:52,740 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:28:52,749 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 61 transitions, 132 flow [2021-03-10 17:28:52,801 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1174 states, 1172 states have (on average 2.712457337883959) internal successors, (3179), 1173 states have internal predecessors, (3179), 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) [2021-03-10 17:28:52,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 1174 states, 1172 states have (on average 2.712457337883959) internal successors, (3179), 1173 states have internal predecessors, (3179), 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) [2021-03-10 17:28:52,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-03-10 17:28:52,828 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:52,829 INFO L519 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] [2021-03-10 17:28:52,829 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:52,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:52,833 INFO L82 PathProgramCache]: Analyzing trace with hash -894398438, now seen corresponding path program 1 times [2021-03-10 17:28:52,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:52,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481026930] [2021-03-10 17:28:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:53,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:53,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481026930] [2021-03-10 17:28:53,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:53,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:28:53,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319714937] [2021-03-10 17:28:53,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:28:53,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:53,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:28:53,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:28:53,133 INFO L87 Difference]: Start difference. First operand has 1174 states, 1172 states have (on average 2.712457337883959) internal successors, (3179), 1173 states have internal predecessors, (3179), 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 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-03-10 17:28:53,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:53,250 INFO L93 Difference]: Finished difference Result 1517 states and 3949 transitions. [2021-03-10 17:28:53,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:28:53,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 35 [2021-03-10 17:28:53,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:53,261 INFO L225 Difference]: With dead ends: 1517 [2021-03-10 17:28:53,261 INFO L226 Difference]: Without dead ends: 600 [2021-03-10 17:28:53,262 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 95.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:28:53,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-03-10 17:28:53,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2021-03-10 17:28:53,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 2.5225375626043407) internal successors, (1511), 599 states have internal predecessors, (1511), 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) [2021-03-10 17:28:53,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1511 transitions. [2021-03-10 17:28:53,319 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1511 transitions. Word has length 35 [2021-03-10 17:28:53,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:53,319 INFO L480 AbstractCegarLoop]: Abstraction has 600 states and 1511 transitions. [2021-03-10 17:28:53,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-03-10 17:28:53,320 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1511 transitions. [2021-03-10 17:28:53,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-03-10 17:28:53,321 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:53,321 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:28:53,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:28:53,321 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:53,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:53,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1404670555, now seen corresponding path program 1 times [2021-03-10 17:28:53,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:53,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478883076] [2021-03-10 17:28:53,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:53,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:53,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478883076] [2021-03-10 17:28:53,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:53,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:28:53,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051396186] [2021-03-10 17:28:53,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:28:53,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:53,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:28:53,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:28:53,441 INFO L87 Difference]: Start difference. First operand 600 states and 1511 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:53,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:53,538 INFO L93 Difference]: Finished difference Result 680 states and 1690 transitions. [2021-03-10 17:28:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:28:53,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-03-10 17:28:53,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:53,541 INFO L225 Difference]: With dead ends: 680 [2021-03-10 17:28:53,541 INFO L226 Difference]: Without dead ends: 540 [2021-03-10 17:28:53,542 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 87.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:28:53,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-03-10 17:28:53,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2021-03-10 17:28:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 2.49165120593692) internal successors, (1343), 539 states have internal predecessors, (1343), 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) [2021-03-10 17:28:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1343 transitions. [2021-03-10 17:28:53,565 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1343 transitions. Word has length 37 [2021-03-10 17:28:53,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:53,566 INFO L480 AbstractCegarLoop]: Abstraction has 540 states and 1343 transitions. [2021-03-10 17:28:53,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:53,566 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1343 transitions. [2021-03-10 17:28:53,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-03-10 17:28:53,568 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:53,568 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:28:53,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:28:53,568 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:53,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:53,568 INFO L82 PathProgramCache]: Analyzing trace with hash -7766020, now seen corresponding path program 1 times [2021-03-10 17:28:53,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:53,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182344679] [2021-03-10 17:28:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:53,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182344679] [2021-03-10 17:28:53,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:53,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:28:53,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400060658] [2021-03-10 17:28:53,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:28:53,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:53,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:28:53,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:28:53,707 INFO L87 Difference]: Start difference. First operand 540 states and 1343 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:53,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:53,837 INFO L93 Difference]: Finished difference Result 750 states and 1856 transitions. [2021-03-10 17:28:53,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:28:53,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-03-10 17:28:53,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:53,839 INFO L225 Difference]: With dead ends: 750 [2021-03-10 17:28:53,839 INFO L226 Difference]: Without dead ends: 385 [2021-03-10 17:28:53,840 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 119.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:28:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-03-10 17:28:53,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2021-03-10 17:28:53,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 2.3932291666666665) internal successors, (919), 384 states have internal predecessors, (919), 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) [2021-03-10 17:28:53,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 919 transitions. [2021-03-10 17:28:53,850 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 919 transitions. Word has length 39 [2021-03-10 17:28:53,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:53,850 INFO L480 AbstractCegarLoop]: Abstraction has 385 states and 919 transitions. [2021-03-10 17:28:53,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:53,850 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 919 transitions. [2021-03-10 17:28:53,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 17:28:53,852 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:53,852 INFO L519 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] [2021-03-10 17:28:53,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:28:53,853 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:53,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:53,853 INFO L82 PathProgramCache]: Analyzing trace with hash -150831052, now seen corresponding path program 1 times [2021-03-10 17:28:53,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:53,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924298596] [2021-03-10 17:28:53,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:53,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924298596] [2021-03-10 17:28:53,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:53,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:28:53,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493303513] [2021-03-10 17:28:53,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:28:53,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:53,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:28:53,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:28:53,947 INFO L87 Difference]: Start difference. First operand 385 states and 919 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2021-03-10 17:28:54,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:54,056 INFO L93 Difference]: Finished difference Result 345 states and 817 transitions. [2021-03-10 17:28:54,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:28:54,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 40 [2021-03-10 17:28:54,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:54,057 INFO L225 Difference]: With dead ends: 345 [2021-03-10 17:28:54,057 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:28:54,058 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 99.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:28:54,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:28:54,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:28:54,058 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) [2021-03-10 17:28:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:28:54,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2021-03-10 17:28:54,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:54,058 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:28:54,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2021-03-10 17:28:54,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:28:54,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:28:54,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:28:54,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:28:54 BasicIcfg [2021-03-10 17:28:54,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:28:54,066 INFO L168 Benchmark]: Toolchain (without parser) took 2137.93 ms. Allocated memory is still 367.0 MB. Free memory was 330.3 MB in the beginning and 324.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:54,066 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 367.0 MB. Free memory is still 348.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:28:54,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.44 ms. Allocated memory is still 367.0 MB. Free memory was 329.6 MB in the beginning and 329.1 MB in the end (delta: 522.1 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:54,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.36 ms. Allocated memory is still 367.0 MB. Free memory was 329.1 MB in the beginning and 328.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:54,068 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 ms. Allocated memory is still 367.0 MB. Free memory was 328.1 MB in the beginning and 326.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:54,068 INFO L168 Benchmark]: RCFGBuilder took 316.77 ms. Allocated memory is still 367.0 MB. Free memory was 326.0 MB in the beginning and 303.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:54,070 INFO L168 Benchmark]: TraceAbstraction took 1404.99 ms. Allocated memory is still 367.0 MB. Free memory was 302.9 MB in the beginning and 324.2 MB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:28:54,073 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 367.0 MB. Free memory is still 348.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 337.44 ms. Allocated memory is still 367.0 MB. Free memory was 329.6 MB in the beginning and 329.1 MB in the end (delta: 522.1 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 43.36 ms. Allocated memory is still 367.0 MB. Free memory was 329.1 MB in the beginning and 328.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.72 ms. Allocated memory is still 367.0 MB. Free memory was 328.1 MB in the beginning and 326.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 316.77 ms. Allocated memory is still 367.0 MB. Free memory was 326.0 MB in the beginning and 303.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1404.99 ms. Allocated memory is still 367.0 MB. Free memory was 302.9 MB in the beginning and 324.2 MB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 16.0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1324.2ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 31.8ms, AutomataDifference: 489.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 61.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 291 SDtfs, 440 SDslu, 1070 SDs, 0 SdLazy, 114 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 402.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1174occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 72.3ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.4ms SsaConstructionTime, 127.2ms SatisfiabilityAnalysisTime, 391.0ms InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...