/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:27:31,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:27:31,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:27:31,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:27:31,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:27:31,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:27:31,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:27:31,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:27:31,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:27:31,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:27:31,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:27:31,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:27:31,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:27:31,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:27:31,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:27:31,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:27:31,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:27:31,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:27:31,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:27:31,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:27:31,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:27:31,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:27:31,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:27:31,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:27:31,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:27:31,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:27:31,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:27:31,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:27:31,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:27:31,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:27:31,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:27:31,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:27:31,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:27:31,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:27:31,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:27:31,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:27:31,775 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-keepdead.epf [2021-01-20 21:27:31,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:27:31,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:27:31,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:27:31,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:27:31,833 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:27:31,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:27:31,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:27:31,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:27:31,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:27:31,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:27:31,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:27:31,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:27:31,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:27:31,836 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:27:31,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:27:31,836 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:27:31,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:27:31,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:27:31,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:27:31,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:27:31,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:27:31,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:27:31,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:27:31,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:27:31,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:27:31,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:27:31,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:27:31,839 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:27:31,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:27:31,840 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:27:31,840 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:27:31,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:27:32,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:27:32,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:27:32,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:27:32,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:27:32,261 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:27:32,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2021-01-20 21:27:32,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caed79a1a/38c0d76b3b294004839763e68a183e20/FLAG60c59aed9 [2021-01-20 21:27:33,044 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:27:33,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2021-01-20 21:27:33,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caed79a1a/38c0d76b3b294004839763e68a183e20/FLAG60c59aed9 [2021-01-20 21:27:33,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caed79a1a/38c0d76b3b294004839763e68a183e20 [2021-01-20 21:27:33,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:27:33,324 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:27:33,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:27:33,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:27:33,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:27:33,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:27:33" (1/1) ... [2021-01-20 21:27:33,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48cd0edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:33, skipping insertion in model container [2021-01-20 21:27:33,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:27:33" (1/1) ... [2021-01-20 21:27:33,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:27:33,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:27:33,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:27:33,882 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:27:33,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:27:34,105 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:27:34,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34 WrapperNode [2021-01-20 21:27:34,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:27:34,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:27:34,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:27:34,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:27:34,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (1/1) ... [2021-01-20 21:27:34,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (1/1) ... [2021-01-20 21:27:34,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:27:34,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:27:34,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:27:34,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:27:34,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (1/1) ... [2021-01-20 21:27:34,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (1/1) ... [2021-01-20 21:27:34,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (1/1) ... [2021-01-20 21:27:34,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (1/1) ... [2021-01-20 21:27:34,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (1/1) ... [2021-01-20 21:27:34,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (1/1) ... [2021-01-20 21:27:34,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (1/1) ... [2021-01-20 21:27:34,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:27:34,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:27:34,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:27:34,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:27:34,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (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 [2021-01-20 21:27:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:27:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:27:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:27:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:27:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:27:34,394 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:27:34,394 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:27:34,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:27:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:27:34,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:27:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:27:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:27:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:27:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:27:34,398 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:27:34,868 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:27:34,868 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:27:34,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:27:34 BoogieIcfgContainer [2021-01-20 21:27:34,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:27:34,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:27:34,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:27:34,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:27:34,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:27:33" (1/3) ... [2021-01-20 21:27:34,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b05413d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:27:34, skipping insertion in model container [2021-01-20 21:27:34,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:34" (2/3) ... [2021-01-20 21:27:34,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b05413d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:27:34, skipping insertion in model container [2021-01-20 21:27:34,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:27:34" (3/3) ... [2021-01-20 21:27:34,880 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2021-01-20 21:27:34,896 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:27:34,896 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:27:34,900 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:27:34,901 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:27:34,931 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,932 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,932 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,932 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,932 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,932 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,934 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,934 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,934 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,935 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,935 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,935 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,935 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,937 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,937 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,937 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,937 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,938 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,938 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,939 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,939 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,939 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,939 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,942 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,948 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,948 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,951 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,951 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:34,954 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:27:34,967 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:27:34,994 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:27:34,994 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:27:34,994 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:27:34,995 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:27:34,995 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:27:34,995 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:27:34,995 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:27:34,995 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:27:35,007 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-20 21:27:36,149 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-20 21:27:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-20 21:27:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 21:27:36,263 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:36,264 INFO L504 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] [2021-01-20 21:27:36,265 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:36,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:36,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1916858186, now seen corresponding path program 1 times [2021-01-20 21:27:36,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:36,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272216596] [2021-01-20 21:27:36,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:36,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272216596] [2021-01-20 21:27:36,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:36,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:27:36,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619108798] [2021-01-20 21:27:36,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:27:36,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:36,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:27:36,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:27:36,887 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 21:27:37,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:37,380 INFO L93 Difference]: Finished difference Result 13208 states and 46044 transitions. [2021-01-20 21:27:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:27:37,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-01-20 21:27:37,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:37,385 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:37,386 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 46044 transitions. Word has length 42 [2021-01-20 21:27:37,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:37,388 INFO L481 AbstractCegarLoop]: Abstraction has 13208 states and 46044 transitions. [2021-01-20 21:27:37,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 21:27:37,388 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 46044 transitions. [2021-01-20 21:27:37,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 21:27:37,414 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:37,414 INFO L504 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] [2021-01-20 21:27:37,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:27:37,416 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:37,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:37,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1520283371, now seen corresponding path program 1 times [2021-01-20 21:27:37,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:37,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104832751] [2021-01-20 21:27:37,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:37,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104832751] [2021-01-20 21:27:37,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:37,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:27:37,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50501848] [2021-01-20 21:27:37,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:27:37,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:37,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:27:37,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:27:37,754 INFO L87 Difference]: Start difference. First operand 13208 states and 46044 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-01-20 21:27:38,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:38,143 INFO L93 Difference]: Finished difference Result 11075 states and 37454 transitions. [2021-01-20 21:27:38,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:27:38,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2021-01-20 21:27:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:38,145 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:38,145 INFO L78 Accepts]: Start accepts. Automaton has 11075 states and 37454 transitions. Word has length 44 [2021-01-20 21:27:38,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:38,145 INFO L481 AbstractCegarLoop]: Abstraction has 11075 states and 37454 transitions. [2021-01-20 21:27:38,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-01-20 21:27:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 11075 states and 37454 transitions. [2021-01-20 21:27:38,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 21:27:38,163 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:38,163 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:27:38,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:27:38,164 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:38,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:38,164 INFO L82 PathProgramCache]: Analyzing trace with hash 44408180, now seen corresponding path program 1 times [2021-01-20 21:27:38,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:38,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303712119] [2021-01-20 21:27:38,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:38,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303712119] [2021-01-20 21:27:38,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:38,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:27:38,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483798997] [2021-01-20 21:27:38,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:27:38,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:38,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:27:38,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:27:38,317 INFO L87 Difference]: Start difference. First operand 11075 states and 37454 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:38,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:38,736 INFO L93 Difference]: Finished difference Result 7280 states and 23851 transitions. [2021-01-20 21:27:38,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:27:38,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-01-20 21:27:38,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:38,738 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:27:38,738 INFO L78 Accepts]: Start accepts. Automaton has 7280 states and 23851 transitions. Word has length 46 [2021-01-20 21:27:38,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:38,739 INFO L481 AbstractCegarLoop]: Abstraction has 7280 states and 23851 transitions. [2021-01-20 21:27:38,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:38,739 INFO L276 IsEmpty]: Start isEmpty. Operand 7280 states and 23851 transitions. [2021-01-20 21:27:38,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 21:27:38,760 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:38,760 INFO L504 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] [2021-01-20 21:27:38,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:27:38,761 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:38,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:38,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1894826698, now seen corresponding path program 1 times [2021-01-20 21:27:38,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:38,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013155328] [2021-01-20 21:27:38,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:38,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013155328] [2021-01-20 21:27:38,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:38,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:27:38,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565509419] [2021-01-20 21:27:38,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:27:38,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:38,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:27:38,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:27:38,940 INFO L87 Difference]: Start difference. First operand 7280 states and 23851 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-01-20 21:27:39,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:39,438 INFO L93 Difference]: Finished difference Result 5363 states and 17389 transitions. [2021-01-20 21:27:39,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:27:39,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 50 [2021-01-20 21:27:39,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:39,440 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:27:39,440 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 17389 transitions. Word has length 50 [2021-01-20 21:27:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:39,443 INFO L481 AbstractCegarLoop]: Abstraction has 5363 states and 17389 transitions. [2021-01-20 21:27:39,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-01-20 21:27:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 17389 transitions. [2021-01-20 21:27:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:27:39,460 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:39,461 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:27:39,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:27:39,461 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:39,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:39,463 INFO L82 PathProgramCache]: Analyzing trace with hash -60408392, now seen corresponding path program 1 times [2021-01-20 21:27:39,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:39,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064862095] [2021-01-20 21:27:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:39,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:39,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064862095] [2021-01-20 21:27:39,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:39,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:27:39,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304899456] [2021-01-20 21:27:39,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:27:39,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:39,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:27:39,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:27:39,632 INFO L87 Difference]: Start difference. First operand 5363 states and 17389 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:39,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:39,793 INFO L93 Difference]: Finished difference Result 7993 states and 25639 transitions. [2021-01-20 21:27:39,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 21:27:39,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:27:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:39,795 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-20 21:27:39,796 INFO L78 Accepts]: Start accepts. Automaton has 7993 states and 25639 transitions. Word has length 54 [2021-01-20 21:27:39,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:39,797 INFO L481 AbstractCegarLoop]: Abstraction has 7993 states and 25639 transitions. [2021-01-20 21:27:39,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:39,798 INFO L276 IsEmpty]: Start isEmpty. Operand 7993 states and 25639 transitions. [2021-01-20 21:27:39,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:27:39,833 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:39,834 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:27:39,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:27:39,834 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:39,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:39,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1912523388, now seen corresponding path program 2 times [2021-01-20 21:27:39,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:39,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541042172] [2021-01-20 21:27:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:39,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:39,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541042172] [2021-01-20 21:27:39,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:39,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:27:39,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030258652] [2021-01-20 21:27:39,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:27:39,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:39,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:27:39,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:27:39,967 INFO L87 Difference]: Start difference. First operand 7993 states and 25639 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:40,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:40,253 INFO L93 Difference]: Finished difference Result 12428 states and 39394 transitions. [2021-01-20 21:27:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:27:40,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:27:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:40,258 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:40,258 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 39394 transitions. Word has length 54 [2021-01-20 21:27:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:40,260 INFO L481 AbstractCegarLoop]: Abstraction has 12428 states and 39394 transitions. [2021-01-20 21:27:40,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 39394 transitions. [2021-01-20 21:27:40,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:27:40,291 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:40,291 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:27:40,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:27:40,292 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:40,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:40,293 INFO L82 PathProgramCache]: Analyzing trace with hash -2071801964, now seen corresponding path program 3 times [2021-01-20 21:27:40,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:40,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349102484] [2021-01-20 21:27:40,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:40,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:40,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349102484] [2021-01-20 21:27:40,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:40,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:27:40,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909190508] [2021-01-20 21:27:40,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:27:40,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:40,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:27:40,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:27:40,449 INFO L87 Difference]: Start difference. First operand 12428 states and 39394 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:40,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:40,817 INFO L93 Difference]: Finished difference Result 18640 states and 58534 transitions. [2021-01-20 21:27:40,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:27:40,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:27:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:40,818 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:40,819 INFO L78 Accepts]: Start accepts. Automaton has 18640 states and 58534 transitions. Word has length 54 [2021-01-20 21:27:40,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:40,819 INFO L481 AbstractCegarLoop]: Abstraction has 18640 states and 58534 transitions. [2021-01-20 21:27:40,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:27:40,819 INFO L276 IsEmpty]: Start isEmpty. Operand 18640 states and 58534 transitions. [2021-01-20 21:27:40,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:27:40,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:27:40,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:27:40 BasicIcfg [2021-01-20 21:27:40,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:27:40,883 INFO L168 Benchmark]: Toolchain (without parser) took 7557.08 ms. Allocated memory was 302.0 MB in the beginning and 618.7 MB in the end (delta: 316.7 MB). Free memory was 277.0 MB in the beginning and 439.4 MB in the end (delta: -162.4 MB). Peak memory consumption was 155.9 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:40,890 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:27:40,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.10 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 246.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:40,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.53 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 244.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:40,893 INFO L168 Benchmark]: Boogie Preprocessor took 72.00 ms. Allocated memory is still 302.0 MB. Free memory was 244.1 MB in the beginning and 284.6 MB in the end (delta: -40.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:40,894 INFO L168 Benchmark]: RCFGBuilder took 595.03 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 261.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:40,894 INFO L168 Benchmark]: TraceAbstraction took 6005.89 ms. Allocated memory was 302.0 MB in the beginning and 618.7 MB in the end (delta: 316.7 MB). Free memory was 261.5 MB in the beginning and 439.4 MB in the end (delta: -177.9 MB). Peak memory consumption was 140.9 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:40,909 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 779.10 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 246.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 89.53 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 244.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 72.00 ms. Allocated memory is still 302.0 MB. Free memory was 244.1 MB in the beginning and 284.6 MB in the end (delta: -40.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * RCFGBuilder took 595.03 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 261.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6005.89 ms. Allocated memory was 302.0 MB in the beginning and 618.7 MB in the end (delta: 316.7 MB). Free memory was 261.5 MB in the beginning and 439.4 MB in the end (delta: -177.9 MB). Peak memory consumption was 140.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 764 SDtfs, 1249 SDslu, 2682 SDs, 0 SdLazy, 272 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18640occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 337 ConstructedInterpolants, 0 QuantifiedInterpolants, 39631 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...