/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_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 19:51:01,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 19:51:01,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 19:51:01,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 19:51:01,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 19:51:01,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 19:51:01,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 19:51:01,163 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 [2021-06-05 19:51:01,205 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 19:51:01,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 19:51:01,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 19:51:01,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 19:51:01,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 19:51:01,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 19:51:01,206 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 19:51:01,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 19:51:01,207 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 19:51:01,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 19:51:01,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 19:51:01,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 19:51:01,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 19:51:01,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 19:51:01,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 19:51:01,208 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 19:51:01,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 19:51:01,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 19:51:01,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 19:51:01,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 19:51:01,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 19:51:01,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 19:51:01,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 19:51:01,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 19:51:01,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 19:51:01,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 19:51:01,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 19:51:01,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 19:51:01,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 19:51:01,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 19:51:01,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 19:51:01,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 19:51:01,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 19:51:01,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 19:51:01,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 19:51:01,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 19:51:01,516 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 19:51:01,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2021-06-05 19:51:01,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef7daecc/7dd0918ad25749d49c3d221de999668f/FLAG5ee083c58 [2021-06-05 19:51:02,086 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 19:51:02,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2021-06-05 19:51:02,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef7daecc/7dd0918ad25749d49c3d221de999668f/FLAG5ee083c58 [2021-06-05 19:51:02,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef7daecc/7dd0918ad25749d49c3d221de999668f [2021-06-05 19:51:02,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 19:51:02,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 19:51:02,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 19:51:02,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 19:51:02,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 19:51:02,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6deadfb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02, skipping insertion in model container [2021-06-05 19:51:02,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 19:51:02,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 19:51:02,585 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/safe006_tso.oepc.i[950,963] [2021-06-05 19:51:02,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:51:02,743 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 19:51:02,787 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/safe006_tso.oepc.i[950,963] [2021-06-05 19:51:02,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:51:02,890 INFO L208 MainTranslator]: Completed translation [2021-06-05 19:51:02,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02 WrapperNode [2021-06-05 19:51:02,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 19:51:02,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 19:51:02,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 19:51:02,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 19:51:02,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 19:51:02,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 19:51:02,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 19:51:02,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 19:51:02,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (1/1) ... [2021-06-05 19:51:02,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 19:51:02,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 19:51:02,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 19:51:02,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 19:51:02,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (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 [2021-06-05 19:51:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 19:51:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 19:51:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 19:51:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 19:51:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 19:51:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 19:51:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 19:51:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 19:51:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 19:51:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 19:51:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 19:51:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 19:51:03,057 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 19:51:03,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 19:51:03,495 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 19:51:03,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:51:03 BoogieIcfgContainer [2021-06-05 19:51:03,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 19:51:03,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 19:51:03,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 19:51:03,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 19:51:03,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 07:51:02" (1/3) ... [2021-06-05 19:51:03,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a53afcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:51:03, skipping insertion in model container [2021-06-05 19:51:03,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:51:02" (2/3) ... [2021-06-05 19:51:03,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a53afcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:51:03, skipping insertion in model container [2021-06-05 19:51:03,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:51:03" (3/3) ... [2021-06-05 19:51:03,504 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_tso.oepc.i [2021-06-05 19:51:03,509 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 19:51:03,509 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 19:51:03,509 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 19:51:03,510 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 19:51:03,541 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,541 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,541 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,542 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,550 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,550 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,550 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,555 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,555 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:51:03,558 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 19:51:03,577 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 19:51:03,607 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 19:51:03,607 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 19:51:03,607 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 19:51:03,607 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 19:51:03,607 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 19:51:03,608 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 19:51:03,608 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 19:51:03,608 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 19:51:03,620 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 67 transitions, 144 flow [2021-06-05 19:51:03,693 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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) [2021-06-05 19:51:03,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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) [2021-06-05 19:51:03,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 19:51:03,725 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:03,726 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:51:03,726 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:03,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:03,730 INFO L82 PathProgramCache]: Analyzing trace with hash -593502858, now seen corresponding path program 1 times [2021-06-05 19:51:03,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:03,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043347222] [2021-06-05 19:51:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:04,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:51:04,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:04,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043347222] [2021-06-05 19:51:04,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043347222] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:04,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:04,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:51:04,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689229356] [2021-06-05 19:51:04,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:51:04,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:04,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:51:04,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:51:04,188 INFO L87 Difference]: Start difference. First operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 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 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:51:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:04,520 INFO L93 Difference]: Finished difference Result 1589 states and 4123 transitions. [2021-06-05 19:51:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:51:04,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-05 19:51:04,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:04,542 INFO L225 Difference]: With dead ends: 1589 [2021-06-05 19:51:04,542 INFO L226 Difference]: Without dead ends: 672 [2021-06-05 19:51:04,544 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 236.6ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 19:51:04,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-06-05 19:51:04,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2021-06-05 19:51:04,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 671 states have (on average 2.511177347242921) internal successors, (1685), 671 states have internal predecessors, (1685), 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) [2021-06-05 19:51:04,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1685 transitions. [2021-06-05 19:51:04,615 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1685 transitions. Word has length 41 [2021-06-05 19:51:04,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:04,616 INFO L482 AbstractCegarLoop]: Abstraction has 672 states and 1685 transitions. [2021-06-05 19:51:04,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:51:04,616 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1685 transitions. [2021-06-05 19:51:04,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 19:51:04,620 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:04,620 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:51:04,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 19:51:04,620 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:04,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:04,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1356739669, now seen corresponding path program 1 times [2021-06-05 19:51:04,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:04,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862533620] [2021-06-05 19:51:04,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:51:04,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:04,863 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862533620] [2021-06-05 19:51:04,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862533620] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:04,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:04,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:51:04,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094325767] [2021-06-05 19:51:04,869 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:51:04,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:04,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:51:04,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:51:04,876 INFO L87 Difference]: Start difference. First operand 672 states and 1685 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:51:05,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:05,289 INFO L93 Difference]: Finished difference Result 1052 states and 2619 transitions. [2021-06-05 19:51:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 19:51:05,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-05 19:51:05,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:05,295 INFO L225 Difference]: With dead ends: 1052 [2021-06-05 19:51:05,295 INFO L226 Difference]: Without dead ends: 612 [2021-06-05 19:51:05,296 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 414.7ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 19:51:05,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-06-05 19:51:05,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2021-06-05 19:51:05,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 611 states have (on average 2.469721767594108) internal successors, (1509), 611 states have internal predecessors, (1509), 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) [2021-06-05 19:51:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1509 transitions. [2021-06-05 19:51:05,332 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1509 transitions. Word has length 43 [2021-06-05 19:51:05,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:05,333 INFO L482 AbstractCegarLoop]: Abstraction has 612 states and 1509 transitions. [2021-06-05 19:51:05,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:51:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1509 transitions. [2021-06-05 19:51:05,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 19:51:05,337 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:05,337 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:51:05,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 19:51:05,338 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:05,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:05,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1448724886, now seen corresponding path program 1 times [2021-06-05 19:51:05,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:05,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411781410] [2021-06-05 19:51:05,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:51:05,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:05,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411781410] [2021-06-05 19:51:05,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411781410] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:05,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:05,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:51:05,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064449946] [2021-06-05 19:51:05,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:51:05,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:05,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:51:05,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:51:05,549 INFO L87 Difference]: Start difference. First operand 612 states and 1509 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:51:05,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:05,770 INFO L93 Difference]: Finished difference Result 842 states and 2073 transitions. [2021-06-05 19:51:05,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:51:05,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-05 19:51:05,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:05,773 INFO L225 Difference]: With dead ends: 842 [2021-06-05 19:51:05,773 INFO L226 Difference]: Without dead ends: 427 [2021-06-05 19:51:05,773 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 244.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:51:05,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-06-05 19:51:05,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2021-06-05 19:51:05,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 2.3896713615023475) internal successors, (1018), 426 states have internal predecessors, (1018), 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) [2021-06-05 19:51:05,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1018 transitions. [2021-06-05 19:51:05,783 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1018 transitions. Word has length 45 [2021-06-05 19:51:05,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:05,784 INFO L482 AbstractCegarLoop]: Abstraction has 427 states and 1018 transitions. [2021-06-05 19:51:05,784 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:51:05,784 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1018 transitions. [2021-06-05 19:51:05,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 19:51:05,785 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:51:05,785 INFO L554 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] [2021-06-05 19:51:05,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 19:51:05,785 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:51:05,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:51:05,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1556709704, now seen corresponding path program 1 times [2021-06-05 19:51:05,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:51:05,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946273635] [2021-06-05 19:51:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:51:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:51:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:51:05,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:51:05,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946273635] [2021-06-05 19:51:05,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946273635] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:51:05,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:51:05,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:51:05,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873501032] [2021-06-05 19:51:05,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:51:05,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:51:05,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:51:05,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:51:05,898 INFO L87 Difference]: Start difference. First operand 427 states and 1018 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-05 19:51:06,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:51:06,065 INFO L93 Difference]: Finished difference Result 387 states and 916 transitions. [2021-06-05 19:51:06,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:51:06,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-05 19:51:06,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:51:06,067 INFO L225 Difference]: With dead ends: 387 [2021-06-05 19:51:06,067 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 19:51:06,067 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 195.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 19:51:06,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 19:51:06,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 19:51:06,067 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) [2021-06-05 19:51:06,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 19:51:06,068 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-06-05 19:51:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:51:06,068 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 19:51:06,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-05 19:51:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 19:51:06,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 19:51:06,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 19:51:06,070 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 19:51:06,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 07:51:06 BasicIcfg [2021-06-05 19:51:06,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 19:51:06,074 INFO L168 Benchmark]: Toolchain (without parser) took 3665.67 ms. Allocated memory is still 354.4 MB. Free memory was 317.1 MB in the beginning and 276.9 MB in the end (delta: 40.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:06,074 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 354.4 MB. Free memory was 335.2 MB in the beginning and 335.0 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:51:06,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.87 ms. Allocated memory is still 354.4 MB. Free memory was 316.8 MB in the beginning and 318.8 MB in the end (delta: -2.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:06,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.31 ms. Allocated memory is still 354.4 MB. Free memory was 318.8 MB in the beginning and 316.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:06,075 INFO L168 Benchmark]: Boogie Preprocessor took 32.31 ms. Allocated memory is still 354.4 MB. Free memory was 316.7 MB in the beginning and 315.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:51:06,076 INFO L168 Benchmark]: RCFGBuilder took 518.07 ms. Allocated memory is still 354.4 MB. Free memory was 315.7 MB in the beginning and 293.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:06,076 INFO L168 Benchmark]: TraceAbstraction took 2574.87 ms. Allocated memory is still 354.4 MB. Free memory was 293.7 MB in the beginning and 276.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-06-05 19:51:06,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 354.4 MB. Free memory was 335.2 MB in the beginning and 335.0 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 481.87 ms. Allocated memory is still 354.4 MB. Free memory was 316.8 MB in the beginning and 318.8 MB in the end (delta: -2.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.31 ms. Allocated memory is still 354.4 MB. Free memory was 318.8 MB in the beginning and 316.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.31 ms. Allocated memory is still 354.4 MB. Free memory was 316.7 MB in the beginning and 315.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 518.07 ms. Allocated memory is still 354.4 MB. Free memory was 315.7 MB in the beginning and 293.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2574.87 ms. Allocated memory is still 354.4 MB. Free memory was 293.7 MB in the beginning and 276.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2464.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 39.1ms, AutomataDifference: 1199.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 85.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 318 SDtfs, 534 SDslu, 1179 SDs, 0 SdLazy, 120 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 185.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1091.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred 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: 106.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.7ms SsaConstructionTime, 134.6ms SatisfiabilityAnalysisTime, 728.2ms InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 761 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...