/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:25:08,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:25:08,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:25:08,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 17:25:08,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:25:08,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:25:08,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:25:08,411 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 [2021-06-12 17:25:08,431 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:25:08,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:25:08,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:25:08,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:25:08,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:25:08,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:25:08,433 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:25:08,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:25:08,434 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:25:08,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:25:08,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:25:08,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:25:08,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:25:08,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:25:08,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:25:08,435 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:25:08,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:25:08,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:25:08,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:25:08,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:25:08,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:25:08,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:25:08,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:25:08,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:25:08,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:25:08,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:25:08,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:25:08,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:25:08,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:25:08,437 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:25:08,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:25:08,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:25:08,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:25:08,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:25:08,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:25:08,705 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:25:08,707 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:25:08,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-06-12 17:25:08,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3ccc2e4/6fea6d2a42a6409e9161af3ce98fffa6/FLAG0ef543d51 [2021-06-12 17:25:09,135 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:25:09,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-06-12 17:25:09,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3ccc2e4/6fea6d2a42a6409e9161af3ce98fffa6/FLAG0ef543d51 [2021-06-12 17:25:09,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3ccc2e4/6fea6d2a42a6409e9161af3ce98fffa6 [2021-06-12 17:25:09,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:25:09,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:25:09,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:25:09,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:25:09,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:25:09,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f9d22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09, skipping insertion in model container [2021-06-12 17:25:09,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:25:09,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:25:09,689 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/thin002_tso.opt.i[949,962] [2021-06-12 17:25:09,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:25:09,824 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:25:09,832 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/thin002_tso.opt.i[949,962] [2021-06-12 17:25:09,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:25:09,909 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:25:09,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09 WrapperNode [2021-06-12 17:25:09,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:25:09,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:25:09,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:25:09,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:25:09,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:25:09,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:25:09,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:25:09,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:25:09,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (1/1) ... [2021-06-12 17:25:09,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:25:09,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:25:09,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:25:09,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:25:09,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (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 [2021-06-12 17:25:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:25:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 17:25:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:25:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:25:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-12 17:25:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-12 17:25:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-12 17:25:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-12 17:25:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-12 17:25:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-12 17:25:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-12 17:25:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-12 17:25:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:25:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 17:25:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:25:10,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:25:10,010 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:25:10,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:25:10,335 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-12 17:25:10,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:25:10 BoogieIcfgContainer [2021-06-12 17:25:10,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:25:10,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:25:10,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:25:10,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:25:10,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:25:09" (1/3) ... [2021-06-12 17:25:10,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796b5050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:25:10, skipping insertion in model container [2021-06-12 17:25:10,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:09" (2/3) ... [2021-06-12 17:25:10,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796b5050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:25:10, skipping insertion in model container [2021-06-12 17:25:10,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:25:10" (3/3) ... [2021-06-12 17:25:10,344 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2021-06-12 17:25:10,349 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:25:10,349 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:25:10,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:25:10,350 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:25:10,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,380 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,380 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,380 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,380 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,381 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,382 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,382 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,382 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,382 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,383 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,383 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,383 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,384 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,384 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,384 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,385 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,385 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,385 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,386 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,386 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,386 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,386 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,388 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,388 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,388 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,388 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,391 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,391 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,391 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,391 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,392 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,392 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,394 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,395 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,395 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,395 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:10,396 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-12 17:25:10,409 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-12 17:25:10,420 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:25:10,420 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:25:10,420 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:25:10,420 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:25:10,420 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:25:10,420 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:25:10,420 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:25:10,421 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:25:10,427 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 103 transitions, 226 flow [2021-06-12 17:25:18,161 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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) [2021-06-12 17:25:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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) [2021-06-12 17:25:18,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-12 17:25:18,333 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:18,333 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:18,334 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:18,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:18,338 INFO L82 PathProgramCache]: Analyzing trace with hash -190192830, now seen corresponding path program 1 times [2021-06-12 17:25:18,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:18,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360204647] [2021-06-12 17:25:18,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:18,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:18,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:18,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360204647] [2021-06-12 17:25:18,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360204647] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:18,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:18,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:18,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816638628] [2021-06-12 17:25:18,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:18,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:18,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:18,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:18,762 INFO L87 Difference]: Start difference. First operand has 70046 states, 70044 states have (on average 4.422177488435841) internal successors, (309747), 70045 states have internal predecessors, (309747), 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 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-06-12 17:25:20,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:20,062 INFO L93 Difference]: Finished difference Result 93713 states and 406277 transitions. [2021-06-12 17:25:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:20,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2021-06-12 17:25:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:20,296 INFO L225 Difference]: With dead ends: 93713 [2021-06-12 17:25:20,296 INFO L226 Difference]: Without dead ends: 32316 [2021-06-12 17:25:20,297 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 125.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:25:20,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32316 states. [2021-06-12 17:25:21,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32316 to 32316. [2021-06-12 17:25:21,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32316 states, 32315 states have (on average 4.247779668884419) internal successors, (137267), 32315 states have internal predecessors, (137267), 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) [2021-06-12 17:25:21,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32316 states to 32316 states and 137267 transitions. [2021-06-12 17:25:21,794 INFO L78 Accepts]: Start accepts. Automaton has 32316 states and 137267 transitions. Word has length 59 [2021-06-12 17:25:21,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:21,795 INFO L482 AbstractCegarLoop]: Abstraction has 32316 states and 137267 transitions. [2021-06-12 17:25:21,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2021-06-12 17:25:21,795 INFO L276 IsEmpty]: Start isEmpty. Operand 32316 states and 137267 transitions. [2021-06-12 17:25:21,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 17:25:21,887 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:21,887 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:21,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:25:21,887 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:21,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:21,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1901105981, now seen corresponding path program 1 times [2021-06-12 17:25:21,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:21,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070289076] [2021-06-12 17:25:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:21,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:21,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:21,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070289076] [2021-06-12 17:25:21,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070289076] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:21,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:21,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:21,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689091334] [2021-06-12 17:25:21,993 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:21,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:21,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:21,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:21,994 INFO L87 Difference]: Start difference. First operand 32316 states and 137267 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-12 17:25:22,213 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-06-12 17:25:22,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:22,427 INFO L93 Difference]: Finished difference Result 36236 states and 152758 transitions. [2021-06-12 17:25:22,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:22,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-06-12 17:25:22,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:22,546 INFO L225 Difference]: With dead ends: 36236 [2021-06-12 17:25:22,547 INFO L226 Difference]: Without dead ends: 29376 [2021-06-12 17:25:22,548 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 225.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:25:22,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29376 states. [2021-06-12 17:25:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29376 to 29376. [2021-06-12 17:25:23,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29376 states, 29375 states have (on average 4.221106382978723) internal successors, (123995), 29375 states have internal predecessors, (123995), 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) [2021-06-12 17:25:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29376 states to 29376 states and 123995 transitions. [2021-06-12 17:25:23,607 INFO L78 Accepts]: Start accepts. Automaton has 29376 states and 123995 transitions. Word has length 61 [2021-06-12 17:25:23,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:23,608 INFO L482 AbstractCegarLoop]: Abstraction has 29376 states and 123995 transitions. [2021-06-12 17:25:23,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-06-12 17:25:23,608 INFO L276 IsEmpty]: Start isEmpty. Operand 29376 states and 123995 transitions. [2021-06-12 17:25:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-12 17:25:23,672 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:23,672 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:23,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:25:23,673 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:23,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:23,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1062827298, now seen corresponding path program 1 times [2021-06-12 17:25:23,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:23,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485446950] [2021-06-12 17:25:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:23,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:23,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:23,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485446950] [2021-06-12 17:25:23,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485446950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:23,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:23,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:23,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918561253] [2021-06-12 17:25:23,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:23,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:23,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:23,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:23,766 INFO L87 Difference]: Start difference. First operand 29376 states and 123995 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-06-12 17:25:24,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:24,128 INFO L93 Difference]: Finished difference Result 32176 states and 134900 transitions. [2021-06-12 17:25:24,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:25:24,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-06-12 17:25:24,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:24,203 INFO L225 Difference]: With dead ends: 32176 [2021-06-12 17:25:24,203 INFO L226 Difference]: Without dead ends: 27276 [2021-06-12 17:25:24,203 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 74.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:25:24,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27276 states. [2021-06-12 17:25:24,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27276 to 27276. [2021-06-12 17:25:24,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27276 states, 27275 states have (on average 4.2029330889092575) internal successors, (114635), 27275 states have internal predecessors, (114635), 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) [2021-06-12 17:25:25,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27276 states to 27276 states and 114635 transitions. [2021-06-12 17:25:25,022 INFO L78 Accepts]: Start accepts. Automaton has 27276 states and 114635 transitions. Word has length 63 [2021-06-12 17:25:25,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:25,023 INFO L482 AbstractCegarLoop]: Abstraction has 27276 states and 114635 transitions. [2021-06-12 17:25:25,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-06-12 17:25:25,023 INFO L276 IsEmpty]: Start isEmpty. Operand 27276 states and 114635 transitions. [2021-06-12 17:25:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-12 17:25:25,063 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:25,063 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:25,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:25:25,063 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:25,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:25,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1245743325, now seen corresponding path program 1 times [2021-06-12 17:25:25,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:25,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336547142] [2021-06-12 17:25:25,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:25,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:25,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336547142] [2021-06-12 17:25:25,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336547142] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:25,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:25,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:25,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194925669] [2021-06-12 17:25:25,148 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:25,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:25,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:25,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:25,148 INFO L87 Difference]: Start difference. First operand 27276 states and 114635 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2021-06-12 17:25:25,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:25,703 INFO L93 Difference]: Finished difference Result 46676 states and 196175 transitions. [2021-06-12 17:25:25,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:25:25,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 65 [2021-06-12 17:25:25,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:25,799 INFO L225 Difference]: With dead ends: 46676 [2021-06-12 17:25:25,799 INFO L226 Difference]: Without dead ends: 35676 [2021-06-12 17:25:25,801 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 186.7ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35676 states. [2021-06-12 17:25:26,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35676 to 29276. [2021-06-12 17:25:26,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29276 states, 29275 states have (on average 4.201024765157984) internal successors, (122985), 29275 states have internal predecessors, (122985), 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) [2021-06-12 17:25:26,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29276 states to 29276 states and 122985 transitions. [2021-06-12 17:25:26,816 INFO L78 Accepts]: Start accepts. Automaton has 29276 states and 122985 transitions. Word has length 65 [2021-06-12 17:25:26,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:26,816 INFO L482 AbstractCegarLoop]: Abstraction has 29276 states and 122985 transitions. [2021-06-12 17:25:26,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2021-06-12 17:25:26,816 INFO L276 IsEmpty]: Start isEmpty. Operand 29276 states and 122985 transitions. [2021-06-12 17:25:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-12 17:25:26,856 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:26,856 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:26,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:25:26,856 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:26,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:26,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1027808739, now seen corresponding path program 2 times [2021-06-12 17:25:26,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:26,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764775744] [2021-06-12 17:25:26,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:26,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:26,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764775744] [2021-06-12 17:25:26,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764775744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:26,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:26,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:25:26,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782823920] [2021-06-12 17:25:26,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:25:26,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:26,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:25:26,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:25:26,932 INFO L87 Difference]: Start difference. First operand 29276 states and 122985 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-06-12 17:25:27,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:27,478 INFO L93 Difference]: Finished difference Result 39566 states and 165657 transitions. [2021-06-12 17:25:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:27,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2021-06-12 17:25:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:27,528 INFO L225 Difference]: With dead ends: 39566 [2021-06-12 17:25:27,528 INFO L226 Difference]: Without dead ends: 18351 [2021-06-12 17:25:27,528 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 115.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:25:27,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18351 states. [2021-06-12 17:25:28,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18351 to 18351. [2021-06-12 17:25:28,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18351 states, 18350 states have (on average 4.132425068119891) internal successors, (75830), 18350 states have internal predecessors, (75830), 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) [2021-06-12 17:25:28,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18351 states to 18351 states and 75830 transitions. [2021-06-12 17:25:28,076 INFO L78 Accepts]: Start accepts. Automaton has 18351 states and 75830 transitions. Word has length 65 [2021-06-12 17:25:28,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:28,076 INFO L482 AbstractCegarLoop]: Abstraction has 18351 states and 75830 transitions. [2021-06-12 17:25:28,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-06-12 17:25:28,076 INFO L276 IsEmpty]: Start isEmpty. Operand 18351 states and 75830 transitions. [2021-06-12 17:25:28,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 17:25:28,098 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:28,098 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:28,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:25:28,098 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:28,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:28,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1083328277, now seen corresponding path program 1 times [2021-06-12 17:25:28,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:28,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868830699] [2021-06-12 17:25:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:28,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:28,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868830699] [2021-06-12 17:25:28,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868830699] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:28,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:28,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:28,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191005350] [2021-06-12 17:25:28,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:28,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:28,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:28,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:28,309 INFO L87 Difference]: Start difference. First operand 18351 states and 75830 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-06-12 17:25:28,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:28,475 INFO L93 Difference]: Finished difference Result 19951 states and 81890 transitions. [2021-06-12 17:25:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:28,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 66 [2021-06-12 17:25:28,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:28,515 INFO L225 Difference]: With dead ends: 19951 [2021-06-12 17:25:28,516 INFO L226 Difference]: Without dead ends: 17151 [2021-06-12 17:25:28,516 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 218.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:25:28,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17151 states. [2021-06-12 17:25:28,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17151 to 17151. [2021-06-12 17:25:28,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17151 states, 17150 states have (on average 4.117201166180758) internal successors, (70610), 17150 states have internal predecessors, (70610), 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) [2021-06-12 17:25:28,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17151 states to 17151 states and 70610 transitions. [2021-06-12 17:25:28,924 INFO L78 Accepts]: Start accepts. Automaton has 17151 states and 70610 transitions. Word has length 66 [2021-06-12 17:25:28,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:28,924 INFO L482 AbstractCegarLoop]: Abstraction has 17151 states and 70610 transitions. [2021-06-12 17:25:28,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-06-12 17:25:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 17151 states and 70610 transitions. [2021-06-12 17:25:28,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-12 17:25:28,948 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:28,949 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:28,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:25:28,949 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:28,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:28,949 INFO L82 PathProgramCache]: Analyzing trace with hash 887615596, now seen corresponding path program 1 times [2021-06-12 17:25:28,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:28,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091680472] [2021-06-12 17:25:28,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:29,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:29,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091680472] [2021-06-12 17:25:29,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091680472] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:29,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:29,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:25:29,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843277126] [2021-06-12 17:25:29,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:25:29,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:29,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:25:29,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:25:29,017 INFO L87 Difference]: Start difference. First operand 17151 states and 70610 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2021-06-12 17:25:29,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:29,355 INFO L93 Difference]: Finished difference Result 25271 states and 103732 transitions. [2021-06-12 17:25:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:29,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2021-06-12 17:25:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:29,386 INFO L225 Difference]: With dead ends: 25271 [2021-06-12 17:25:29,386 INFO L226 Difference]: Without dead ends: 11511 [2021-06-12 17:25:29,387 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 81.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-12 17:25:29,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11511 states. [2021-06-12 17:25:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11511 to 11511. [2021-06-12 17:25:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11511 states, 11510 states have (on average 3.9817549956559515) internal successors, (45830), 11510 states have internal predecessors, (45830), 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) [2021-06-12 17:25:29,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11511 states to 11511 states and 45830 transitions. [2021-06-12 17:25:29,621 INFO L78 Accepts]: Start accepts. Automaton has 11511 states and 45830 transitions. Word has length 68 [2021-06-12 17:25:29,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:29,621 INFO L482 AbstractCegarLoop]: Abstraction has 11511 states and 45830 transitions. [2021-06-12 17:25:29,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2021-06-12 17:25:29,622 INFO L276 IsEmpty]: Start isEmpty. Operand 11511 states and 45830 transitions. [2021-06-12 17:25:29,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-12 17:25:29,637 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:29,638 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:29,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:25:29,638 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:29,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:29,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1824397112, now seen corresponding path program 1 times [2021-06-12 17:25:29,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:29,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862501746] [2021-06-12 17:25:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:29,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:29,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862501746] [2021-06-12 17:25:29,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862501746] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:29,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:29,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:25:29,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949883278] [2021-06-12 17:25:29,729 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:25:29,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:29,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:25:29,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:25:29,730 INFO L87 Difference]: Start difference. First operand 11511 states and 45830 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-06-12 17:25:30,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:30,048 INFO L93 Difference]: Finished difference Result 17391 states and 68892 transitions. [2021-06-12 17:25:30,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:25:30,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 69 [2021-06-12 17:25:30,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:30,077 INFO L225 Difference]: With dead ends: 17391 [2021-06-12 17:25:30,077 INFO L226 Difference]: Without dead ends: 7461 [2021-06-12 17:25:30,077 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 110.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:25:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7461 states. [2021-06-12 17:25:30,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7461 to 7461. [2021-06-12 17:25:30,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7461 states, 7460 states have (on average 3.862064343163539) internal successors, (28811), 7460 states have internal predecessors, (28811), 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) [2021-06-12 17:25:30,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7461 states to 7461 states and 28811 transitions. [2021-06-12 17:25:30,190 INFO L78 Accepts]: Start accepts. Automaton has 7461 states and 28811 transitions. Word has length 69 [2021-06-12 17:25:30,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:30,190 INFO L482 AbstractCegarLoop]: Abstraction has 7461 states and 28811 transitions. [2021-06-12 17:25:30,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-06-12 17:25:30,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7461 states and 28811 transitions. [2021-06-12 17:25:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-12 17:25:30,199 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:30,199 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:30,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:25:30,199 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:30,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:30,199 INFO L82 PathProgramCache]: Analyzing trace with hash -215102312, now seen corresponding path program 1 times [2021-06-12 17:25:30,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:30,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002794224] [2021-06-12 17:25:30,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:30,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:30,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:30,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002794224] [2021-06-12 17:25:30,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002794224] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:30,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:30,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:25:30,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806566080] [2021-06-12 17:25:30,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:25:30,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:30,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:25:30,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:25:30,278 INFO L87 Difference]: Start difference. First operand 7461 states and 28811 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2021-06-12 17:25:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:30,402 INFO L93 Difference]: Finished difference Result 6821 states and 26219 transitions. [2021-06-12 17:25:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:25:30,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 70 [2021-06-12 17:25:30,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:30,405 INFO L225 Difference]: With dead ends: 6821 [2021-06-12 17:25:30,405 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 17:25:30,406 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 112.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:25:30,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 17:25:30,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 17:25:30,406 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) [2021-06-12 17:25:30,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 17:25:30,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-12 17:25:30,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:30,406 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 17:25:30,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2021-06-12 17:25:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 17:25:30,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 17:25:30,406 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:25:30,408 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:25:30,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:25:30 BasicIcfg [2021-06-12 17:25:30,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:25:30,411 INFO L168 Benchmark]: Toolchain (without parser) took 20910.58 ms. Allocated memory was 190.8 MB in the beginning and 6.2 GB in the end (delta: 6.0 GB). Free memory was 152.9 MB in the beginning and 4.2 GB in the end (delta: -4.0 GB). Peak memory consumption was 2.0 GB. Max. memory is 8.0 GB. [2021-06-12 17:25:30,411 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 190.8 MB. Free memory is still 170.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:25:30,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.77 ms. Allocated memory is still 190.8 MB. Free memory was 152.7 MB in the beginning and 150.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 8.0 GB. [2021-06-12 17:25:30,411 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.51 ms. Allocated memory is still 190.8 MB. Free memory was 150.2 MB in the beginning and 148.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:25:30,411 INFO L168 Benchmark]: Boogie Preprocessor took 14.78 ms. Allocated memory is still 190.8 MB. Free memory was 148.2 MB in the beginning and 147.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 17:25:30,413 INFO L168 Benchmark]: RCFGBuilder took 373.54 ms. Allocated memory is still 190.8 MB. Free memory was 147.1 MB in the beginning and 120.4 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-06-12 17:25:30,414 INFO L168 Benchmark]: TraceAbstraction took 20069.85 ms. Allocated memory was 190.8 MB in the beginning and 6.2 GB in the end (delta: 6.0 GB). Free memory was 119.9 MB in the beginning and 4.2 GB in the end (delta: -4.1 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-06-12 17:25:30,420 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 190.8 MB. Free memory is still 170.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 406.77 ms. Allocated memory is still 190.8 MB. Free memory was 152.7 MB in the beginning and 150.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.51 ms. Allocated memory is still 190.8 MB. Free memory was 150.2 MB in the beginning and 148.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.78 ms. Allocated memory is still 190.8 MB. Free memory was 148.2 MB in the beginning and 147.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 373.54 ms. Allocated memory is still 190.8 MB. Free memory was 147.1 MB in the beginning and 120.4 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20069.85 ms. Allocated memory was 190.8 MB in the beginning and 6.2 GB in the end (delta: 6.0 GB). Free memory was 119.9 MB in the beginning and 4.2 GB in the end (delta: -4.1 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 134 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19988.1ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 476.4ms, AutomataDifference: 4935.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7740.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1232 SDtfs, 2031 SDslu, 4433 SDs, 0 SdLazy, 297 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 231.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1250.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=70046occurred in iteration=0, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5680.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 6400 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.7ms SsaConstructionTime, 126.1ms SatisfiabilityAnalysisTime, 863.7ms InterpolantComputationTime, 586 NumberOfCodeBlocks, 586 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 577 ConstructedInterpolants, 0 QuantifiedInterpolants, 2945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...