/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/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:22:11,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:22:11,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:22:11,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:22:11,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:22:11,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:22:11,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:22:11,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:22:11,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:22:11,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:22:11,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:22:11,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:22:11,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:22:11,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:22:11,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:22:11,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:22:11,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:22:11,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:22:11,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:22:11,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:22:11,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:22:11,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:22:11,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:22:11,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:22:11,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:22:11,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:22:11,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:22:11,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:22:11,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:22:11,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:22:11,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:22:11,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:22:11,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:22:11,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:22:11,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:22:11,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:22:11,741 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 21:22:11,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:22:11,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:22:11,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:22:11,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:22:11,797 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:22:11,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:22:11,797 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:22:11,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:22:11,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:22:11,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:22:11,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:22:11,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:22:11,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:22:11,800 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:22:11,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:22:11,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:22:11,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:22:11,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:22:11,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:22:11,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:22:11,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:22:11,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:22:11,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:22:11,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:22:11,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:22:11,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:22:11,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:22:11,803 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:22:11,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:22:11,803 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:22:11,803 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:22:11,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:22:12,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:22:12,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:22:12,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:22:12,244 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:22:12,244 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:22:12,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-01-20 21:22:12,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dead001af/e89b1c85d2b943299288ac2a05ae6b25/FLAG91726f0cd [2021-01-20 21:22:13,082 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:22:13,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-01-20 21:22:13,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dead001af/e89b1c85d2b943299288ac2a05ae6b25/FLAG91726f0cd [2021-01-20 21:22:13,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dead001af/e89b1c85d2b943299288ac2a05ae6b25 [2021-01-20 21:22:13,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:22:13,328 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:22:13,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:22:13,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:22:13,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:22:13,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:22:13" (1/1) ... [2021-01-20 21:22:13,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229d883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:13, skipping insertion in model container [2021-01-20 21:22:13,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:22:13" (1/1) ... [2021-01-20 21:22:13,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:22:13,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:22:13,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:22:13,862 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:22:13,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:22:14,030 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:22:14,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14 WrapperNode [2021-01-20 21:22:14,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:22:14,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:22:14,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:22:14,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:22:14,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (1/1) ... [2021-01-20 21:22:14,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (1/1) ... [2021-01-20 21:22:14,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:22:14,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:22:14,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:22:14,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:22:14,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (1/1) ... [2021-01-20 21:22:14,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (1/1) ... [2021-01-20 21:22:14,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (1/1) ... [2021-01-20 21:22:14,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (1/1) ... [2021-01-20 21:22:14,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (1/1) ... [2021-01-20 21:22:14,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (1/1) ... [2021-01-20 21:22:14,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (1/1) ... [2021-01-20 21:22:14,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:22:14,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:22:14,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:22:14,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:22:14,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (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 21:22:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:22:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:22:14,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:22:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:22:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:22:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:22:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:22:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:22:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:22:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:22:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:22:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:22:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:22:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:22:14,257 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 21:22:14,675 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:22:14,675 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:22:14,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:22:14 BoogieIcfgContainer [2021-01-20 21:22:14,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:22:14,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:22:14,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:22:14,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:22:14,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:22:13" (1/3) ... [2021-01-20 21:22:14,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59736145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:22:14, skipping insertion in model container [2021-01-20 21:22:14,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:22:14" (2/3) ... [2021-01-20 21:22:14,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59736145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:22:14, skipping insertion in model container [2021-01-20 21:22:14,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:22:14" (3/3) ... [2021-01-20 21:22:14,685 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2021-01-20 21:22:14,701 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:22:14,702 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:22:14,705 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:22:14,706 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:22:14,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,746 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,746 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,750 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,750 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,751 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,751 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,751 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,752 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,752 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,752 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,752 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,752 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,753 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,753 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,753 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,753 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,756 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,756 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,763 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,763 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,763 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,764 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,767 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,767 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,767 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,767 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:22:14,770 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:22:14,783 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:22:14,805 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:22:14,805 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:22:14,805 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:22:14,805 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:22:14,805 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:22:14,806 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:22:14,806 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:22:14,806 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:22:14,817 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2021-01-20 21:22:15,595 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 21:22:15,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 21:22:15,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 21:22:15,683 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:22:15,684 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] [2021-01-20 21:22:15,685 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:22:15,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:22:15,691 INFO L82 PathProgramCache]: Analyzing trace with hash 960913987, now seen corresponding path program 1 times [2021-01-20 21:22:15,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:22:15,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794787894] [2021-01-20 21:22:15,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:22:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:22:16,342 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 21:22:16,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794787894] [2021-01-20 21:22:16,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:22:16,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:22:16,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083934937] [2021-01-20 21:22:16,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:22:16,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:22:16,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:22:16,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:22:16,433 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:22:16,938 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2021-01-20 21:22:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:22:16,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-01-20 21:22:16,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:22:16,944 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:22:16,944 INFO L78 Accepts]: Start accepts. Automaton has 12201 states and 42465 transitions. Word has length 43 [2021-01-20 21:22:16,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:22:16,946 INFO L481 AbstractCegarLoop]: Abstraction has 12201 states and 42465 transitions. [2021-01-20 21:22:16,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:16,946 INFO L276 IsEmpty]: Start isEmpty. Operand 12201 states and 42465 transitions. [2021-01-20 21:22:16,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:22:16,967 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:22:16,967 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] [2021-01-20 21:22:16,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:22:16,968 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:22:16,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:22:16,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1551930462, now seen corresponding path program 1 times [2021-01-20 21:22:16,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:22:16,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147315985] [2021-01-20 21:22:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:22:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:22:17,245 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 21:22:17,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147315985] [2021-01-20 21:22:17,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:22:17,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:22:17,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466267114] [2021-01-20 21:22:17,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:22:17,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:22:17,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:22:17,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:22:17,249 INFO L87 Difference]: Start difference. First operand 12201 states and 42465 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:17,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:22:17,864 INFO L93 Difference]: Finished difference Result 16821 states and 57821 transitions. [2021-01-20 21:22:17,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:22:17,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-01-20 21:22:17,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:22:17,867 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:22:17,867 INFO L78 Accepts]: Start accepts. Automaton has 16821 states and 57821 transitions. Word has length 45 [2021-01-20 21:22:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:22:17,868 INFO L481 AbstractCegarLoop]: Abstraction has 16821 states and 57821 transitions. [2021-01-20 21:22:17,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 16821 states and 57821 transitions. [2021-01-20 21:22:17,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 21:22:17,892 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:22:17,892 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] [2021-01-20 21:22:17,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:22:17,893 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:22:17,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:22:17,894 INFO L82 PathProgramCache]: Analyzing trace with hash 2078104249, now seen corresponding path program 1 times [2021-01-20 21:22:17,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:22:17,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721640211] [2021-01-20 21:22:17,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:22:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:22:18,120 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2021-01-20 21:22:18,182 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 21:22:18,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721640211] [2021-01-20 21:22:18,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:22:18,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:22:18,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372179773] [2021-01-20 21:22:18,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:22:18,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:22:18,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:22:18,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:22:18,191 INFO L87 Difference]: Start difference. First operand 16821 states and 57821 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 21:22:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:22:18,526 INFO L93 Difference]: Finished difference Result 15524 states and 51960 transitions. [2021-01-20 21:22:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:22:18,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2021-01-20 21:22:18,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:22:18,527 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 21:22:18,528 INFO L78 Accepts]: Start accepts. Automaton has 15524 states and 51960 transitions. Word has length 48 [2021-01-20 21:22:18,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:22:18,528 INFO L481 AbstractCegarLoop]: Abstraction has 15524 states and 51960 transitions. [2021-01-20 21:22:18,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 21:22:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 15524 states and 51960 transitions. [2021-01-20 21:22:18,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 21:22:18,558 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:22:18,559 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] [2021-01-20 21:22:18,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:22:18,559 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:22:18,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:22:18,560 INFO L82 PathProgramCache]: Analyzing trace with hash 234797092, now seen corresponding path program 1 times [2021-01-20 21:22:18,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:22:18,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572938986] [2021-01-20 21:22:18,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:22:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:22:18,716 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 21:22:18,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572938986] [2021-01-20 21:22:18,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:22:18,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:22:18,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440559887] [2021-01-20 21:22:18,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:22:18,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:22:18,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:22:18,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:22:18,719 INFO L87 Difference]: Start difference. First operand 15524 states and 51960 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:19,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:22:19,094 INFO L93 Difference]: Finished difference Result 11171 states and 36203 transitions. [2021-01-20 21:22:19,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:22:19,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-01-20 21:22:19,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:22:19,096 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 21:22:19,096 INFO L78 Accepts]: Start accepts. Automaton has 11171 states and 36203 transitions. Word has length 49 [2021-01-20 21:22:19,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:22:19,096 INFO L481 AbstractCegarLoop]: Abstraction has 11171 states and 36203 transitions. [2021-01-20 21:22:19,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:19,097 INFO L276 IsEmpty]: Start isEmpty. Operand 11171 states and 36203 transitions. [2021-01-20 21:22:19,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:22:19,189 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:22:19,189 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] [2021-01-20 21:22:19,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:22:19,190 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:22:19,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:22:19,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1561578237, now seen corresponding path program 1 times [2021-01-20 21:22:19,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:22:19,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284710679] [2021-01-20 21:22:19,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:22:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:22:19,358 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 21:22:19,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284710679] [2021-01-20 21:22:19,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:22:19,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:22:19,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785591683] [2021-01-20 21:22:19,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:22:19,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:22:19,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:22:19,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:22:19,361 INFO L87 Difference]: Start difference. First operand 11171 states and 36203 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:19,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:22:19,730 INFO L93 Difference]: Finished difference Result 7994 states and 25640 transitions. [2021-01-20 21:22:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:22:19,730 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 21:22:19,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:22:19,731 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:22:19,732 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 25640 transitions. Word has length 51 [2021-01-20 21:22:19,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:22:19,732 INFO L481 AbstractCegarLoop]: Abstraction has 7994 states and 25640 transitions. [2021-01-20 21:22:19,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:19,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 25640 transitions. [2021-01-20 21:22:19,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:22:19,752 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:22:19,753 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, 1] [2021-01-20 21:22:19,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:22:19,753 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:22:19,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:22:19,754 INFO L82 PathProgramCache]: Analyzing trace with hash -936602175, now seen corresponding path program 1 times [2021-01-20 21:22:19,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:22:19,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964086254] [2021-01-20 21:22:19,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:22:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:22:19,955 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 21:22:19,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964086254] [2021-01-20 21:22:19,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:22:19,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:22:19,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204290768] [2021-01-20 21:22:19,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:22:19,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:22:19,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:22:19,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:22:19,959 INFO L87 Difference]: Start difference. First operand 7994 states and 25640 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:20,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:22:20,111 INFO L93 Difference]: Finished difference Result 12429 states and 39395 transitions. [2021-01-20 21:22:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:22:20,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 21:22:20,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:22:20,113 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 21:22:20,113 INFO L78 Accepts]: Start accepts. Automaton has 12429 states and 39395 transitions. Word has length 55 [2021-01-20 21:22:20,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:22:20,115 INFO L481 AbstractCegarLoop]: Abstraction has 12429 states and 39395 transitions. [2021-01-20 21:22:20,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 12429 states and 39395 transitions. [2021-01-20 21:22:20,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:22:20,141 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:22:20,142 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, 1] [2021-01-20 21:22:20,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:22:20,142 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:22:20,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:22:20,143 INFO L82 PathProgramCache]: Analyzing trace with hash -331013291, now seen corresponding path program 2 times [2021-01-20 21:22:20,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:22:20,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629392860] [2021-01-20 21:22:20,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:22:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:22:20,292 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 21:22:20,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629392860] [2021-01-20 21:22:20,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:22:20,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:22:20,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280429228] [2021-01-20 21:22:20,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:22:20,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:22:20,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:22:20,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:22:20,296 INFO L87 Difference]: Start difference. First operand 12429 states and 39395 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:22:20,582 INFO L93 Difference]: Finished difference Result 18641 states and 58535 transitions. [2021-01-20 21:22:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:22:20,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 21:22:20,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:22:20,585 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 21:22:20,585 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 58535 transitions. Word has length 55 [2021-01-20 21:22:20,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:22:20,586 INFO L481 AbstractCegarLoop]: Abstraction has 18641 states and 58535 transitions. [2021-01-20 21:22:20,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:22:20,586 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 58535 transitions. [2021-01-20 21:22:20,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:22:20,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:22:20,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:22:20 BasicIcfg [2021-01-20 21:22:20,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:22:20,639 INFO L168 Benchmark]: Toolchain (without parser) took 7311.33 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 830.5 MB). Free memory was 277.1 MB in the beginning and 911.6 MB in the end (delta: -634.5 MB). Peak memory consumption was 198.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:22:20,640 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:22:20,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.92 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:22:20,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.97 ms. Allocated memory is still 302.0 MB. Free memory was 246.1 MB in the beginning and 284.3 MB in the end (delta: -38.2 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-01-20 21:22:20,642 INFO L168 Benchmark]: Boogie Preprocessor took 69.92 ms. Allocated memory is still 302.0 MB. Free memory was 284.3 MB in the beginning and 283.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:22:20,643 INFO L168 Benchmark]: RCFGBuilder took 505.15 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 259.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:22:20,644 INFO L168 Benchmark]: TraceAbstraction took 5958.62 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 830.5 MB). Free memory was 258.1 MB in the beginning and 911.6 MB in the end (delta: -653.5 MB). Peak memory consumption was 179.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:22:20,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 699.92 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.97 ms. Allocated memory is still 302.0 MB. Free memory was 246.1 MB in the beginning and 284.3 MB in the end (delta: -38.2 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 69.92 ms. Allocated memory is still 302.0 MB. Free memory was 284.3 MB in the beginning and 283.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 505.15 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 259.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5958.62 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 830.5 MB). Free memory was 258.1 MB in the beginning and 911.6 MB in the end (delta: -653.5 MB). Peak memory consumption was 179.0 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 793 SDtfs, 1455 SDslu, 2875 SDs, 0 SdLazy, 294 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18641occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 44289 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...