/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:40:05,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:40:05,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:40:05,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:40:05,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:40:05,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:40:05,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:40:05,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:40:05,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:40:05,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:40:05,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:40:05,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:40:05,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:40:05,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:40:05,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:40:05,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:40:05,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:40:05,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:40:05,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:40:05,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:40:05,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:40:05,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:40:05,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:40:05,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:40:05,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 19:40:05,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:40:05,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:40:05,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:40:05,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:40:05,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:40:05,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:40:05,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:40:05,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:40:05,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:40:05,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:40:05,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:40:05,725 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-VariableLbe.epf [2019-12-18 19:40:05,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:40:05,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:40:05,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:40:05,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:40:05,748 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:40:05,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:40:05,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:40:05,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:40:05,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:40:05,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:40:05,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:40:05,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:40:05,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:40:05,751 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:40:05,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:40:05,752 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:40:05,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:40:05,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:40:05,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:40:05,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:40:05,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:40:05,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:40:05,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:40:05,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:40:05,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:40:05,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:40:05,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:40:05,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 19:40:05,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:40:05,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:40:06,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:40:06,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:40:06,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:40:06,078 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:40:06,078 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:40:06,079 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2019-12-18 19:40:06,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a22e7b165/93938f774a3e4a17a2e9fdae4b674c38/FLAG2f4eaa125 [2019-12-18 19:40:06,697 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:40:06,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2019-12-18 19:40:06,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a22e7b165/93938f774a3e4a17a2e9fdae4b674c38/FLAG2f4eaa125 [2019-12-18 19:40:06,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a22e7b165/93938f774a3e4a17a2e9fdae4b674c38 [2019-12-18 19:40:06,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:40:06,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:40:06,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:40:06,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:40:06,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:40:06,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:40:06" (1/1) ... [2019-12-18 19:40:06,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd5e30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:06, skipping insertion in model container [2019-12-18 19:40:06,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:40:06" (1/1) ... [2019-12-18 19:40:06,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:40:07,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:40:07,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:40:07,508 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:40:07,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:40:07,626 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:40:07,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07 WrapperNode [2019-12-18 19:40:07,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:40:07,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:40:07,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:40:07,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:40:07,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (1/1) ... [2019-12-18 19:40:07,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (1/1) ... [2019-12-18 19:40:07,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:40:07,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:40:07,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:40:07,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:40:07,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (1/1) ... [2019-12-18 19:40:07,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (1/1) ... [2019-12-18 19:40:07,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (1/1) ... [2019-12-18 19:40:07,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (1/1) ... [2019-12-18 19:40:07,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (1/1) ... [2019-12-18 19:40:07,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (1/1) ... [2019-12-18 19:40:07,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (1/1) ... [2019-12-18 19:40:07,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:40:07,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:40:07,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:40:07,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:40:07,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (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 [2019-12-18 19:40:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 19:40:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-18 19:40:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-18 19:40:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 19:40:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 19:40:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:40:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:40:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:40:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:40:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:40:07,782 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 19:40:08,160 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:40:08,161 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-18 19:40:08,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:40:08 BoogieIcfgContainer [2019-12-18 19:40:08,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:40:08,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:40:08,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:40:08,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:40:08,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:40:06" (1/3) ... [2019-12-18 19:40:08,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da1de07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:40:08, skipping insertion in model container [2019-12-18 19:40:08,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:40:07" (2/3) ... [2019-12-18 19:40:08,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da1de07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:40:08, skipping insertion in model container [2019-12-18 19:40:08,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:40:08" (3/3) ... [2019-12-18 19:40:08,170 INFO L109 eAbstractionObserver]: Analyzing ICFG szymanski.i [2019-12-18 19:40:08,178 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:40:08,178 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:40:08,186 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-18 19:40:08,186 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:40:08,212 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,213 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,213 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,214 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,215 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,215 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,216 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,217 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,217 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,217 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,219 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,219 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,223 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,223 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,224 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,229 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,230 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,230 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,230 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:40:08,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 19:40:08,289 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:40:08,289 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:40:08,289 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:40:08,290 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:40:08,290 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:40:08,290 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:40:08,290 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:40:08,290 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:40:08,308 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 87 transitions [2019-12-18 19:40:08,310 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions [2019-12-18 19:40:08,375 INFO L126 PetriNetUnfolder]: 21/87 cut-off events. [2019-12-18 19:40:08,376 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:40:08,388 INFO L76 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs. 19/84 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2019-12-18 19:40:08,398 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions [2019-12-18 19:40:08,426 INFO L126 PetriNetUnfolder]: 21/87 cut-off events. [2019-12-18 19:40:08,426 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:40:08,428 INFO L76 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs. 19/84 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2019-12-18 19:40:08,435 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2160 [2019-12-18 19:40:08,437 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:40:09,228 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-12-18 19:40:09,316 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4337 [2019-12-18 19:40:09,317 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2019-12-18 19:40:09,320 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 59 transitions [2019-12-18 19:40:09,369 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 509 states. [2019-12-18 19:40:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states. [2019-12-18 19:40:09,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 19:40:09,383 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:40:09,384 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:40:09,384 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:40:09,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:40:09,393 INFO L82 PathProgramCache]: Analyzing trace with hash -223988154, now seen corresponding path program 1 times [2019-12-18 19:40:09,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:40:09,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464326129] [2019-12-18 19:40:09,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:40:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:40:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:40:09,573 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464326129] [2019-12-18 19:40:09,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:40:09,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:40:09,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993056117] [2019-12-18 19:40:09,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-18 19:40:09,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:40:09,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-18 19:40:09,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 19:40:09,592 INFO L87 Difference]: Start difference. First operand 509 states. Second operand 2 states. [2019-12-18 19:40:09,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:40:09,649 INFO L93 Difference]: Finished difference Result 509 states and 1466 transitions. [2019-12-18 19:40:09,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-18 19:40:09,651 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-18 19:40:09,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:40:09,690 INFO L225 Difference]: With dead ends: 509 [2019-12-18 19:40:09,693 INFO L226 Difference]: Without dead ends: 470 [2019-12-18 19:40:09,695 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 19:40:09,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-12-18 19:40:09,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2019-12-18 19:40:09,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-12-18 19:40:09,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1363 transitions. [2019-12-18 19:40:09,791 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1363 transitions. Word has length 8 [2019-12-18 19:40:09,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:40:09,791 INFO L462 AbstractCegarLoop]: Abstraction has 470 states and 1363 transitions. [2019-12-18 19:40:09,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-18 19:40:09,792 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1363 transitions. [2019-12-18 19:40:09,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:40:09,793 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:40:09,793 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:40:09,794 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:40:09,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:40:09,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1417283260, now seen corresponding path program 1 times [2019-12-18 19:40:09,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:40:09,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325613360] [2019-12-18 19:40:09,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:40:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:40:09,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:40:09,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325613360] [2019-12-18 19:40:09,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:40:09,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:40:09,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977138846] [2019-12-18 19:40:09,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:40:09,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:40:09,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:40:09,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:09,880 INFO L87 Difference]: Start difference. First operand 470 states and 1363 transitions. Second operand 3 states. [2019-12-18 19:40:09,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:40:09,932 INFO L93 Difference]: Finished difference Result 481 states and 1359 transitions. [2019-12-18 19:40:09,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:40:09,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 19:40:09,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:40:09,943 INFO L225 Difference]: With dead ends: 481 [2019-12-18 19:40:09,943 INFO L226 Difference]: Without dead ends: 391 [2019-12-18 19:40:09,944 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:09,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-12-18 19:40:09,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373. [2019-12-18 19:40:09,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-12-18 19:40:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1071 transitions. [2019-12-18 19:40:09,995 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1071 transitions. Word has length 10 [2019-12-18 19:40:09,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:40:09,998 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 1071 transitions. [2019-12-18 19:40:09,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:40:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1071 transitions. [2019-12-18 19:40:10,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 19:40:10,000 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:40:10,001 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:40:10,001 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:40:10,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:40:10,001 INFO L82 PathProgramCache]: Analyzing trace with hash -2015895147, now seen corresponding path program 1 times [2019-12-18 19:40:10,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:40:10,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082117782] [2019-12-18 19:40:10,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:40:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:40:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:40:10,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082117782] [2019-12-18 19:40:10,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:40:10,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:40:10,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588202160] [2019-12-18 19:40:10,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:40:10,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:40:10,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:40:10,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,067 INFO L87 Difference]: Start difference. First operand 373 states and 1071 transitions. Second operand 3 states. [2019-12-18 19:40:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:40:10,098 INFO L93 Difference]: Finished difference Result 360 states and 1018 transitions. [2019-12-18 19:40:10,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:40:10,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 19:40:10,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:40:10,108 INFO L225 Difference]: With dead ends: 360 [2019-12-18 19:40:10,108 INFO L226 Difference]: Without dead ends: 264 [2019-12-18 19:40:10,108 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-12-18 19:40:10,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-12-18 19:40:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-18 19:40:10,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 749 transitions. [2019-12-18 19:40:10,121 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 749 transitions. Word has length 12 [2019-12-18 19:40:10,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:40:10,122 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 749 transitions. [2019-12-18 19:40:10,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:40:10,123 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 749 transitions. [2019-12-18 19:40:10,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-18 19:40:10,125 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:40:10,125 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:40:10,126 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:40:10,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:40:10,126 INFO L82 PathProgramCache]: Analyzing trace with hash 573136511, now seen corresponding path program 1 times [2019-12-18 19:40:10,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:40:10,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944970492] [2019-12-18 19:40:10,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:40:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:40:10,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:40:10,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944970492] [2019-12-18 19:40:10,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:40:10,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:40:10,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319254840] [2019-12-18 19:40:10,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:40:10,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:40:10,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:40:10,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,183 INFO L87 Difference]: Start difference. First operand 264 states and 749 transitions. Second operand 3 states. [2019-12-18 19:40:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:40:10,254 INFO L93 Difference]: Finished difference Result 292 states and 809 transitions. [2019-12-18 19:40:10,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:40:10,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-18 19:40:10,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:40:10,257 INFO L225 Difference]: With dead ends: 292 [2019-12-18 19:40:10,257 INFO L226 Difference]: Without dead ends: 280 [2019-12-18 19:40:10,257 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-18 19:40:10,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-12-18 19:40:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-18 19:40:10,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 773 transitions. [2019-12-18 19:40:10,268 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 773 transitions. Word has length 19 [2019-12-18 19:40:10,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:40:10,269 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 773 transitions. [2019-12-18 19:40:10,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:40:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 773 transitions. [2019-12-18 19:40:10,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-18 19:40:10,271 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:40:10,271 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:40:10,272 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:40:10,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:40:10,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1551241601, now seen corresponding path program 2 times [2019-12-18 19:40:10,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:40:10,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079162987] [2019-12-18 19:40:10,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:40:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:40:10,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:40:10,343 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079162987] [2019-12-18 19:40:10,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:40:10,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:40:10,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030976546] [2019-12-18 19:40:10,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:40:10,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:40:10,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:40:10,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,345 INFO L87 Difference]: Start difference. First operand 280 states and 773 transitions. Second operand 3 states. [2019-12-18 19:40:10,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:40:10,388 INFO L93 Difference]: Finished difference Result 312 states and 828 transitions. [2019-12-18 19:40:10,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:40:10,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-18 19:40:10,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:40:10,390 INFO L225 Difference]: With dead ends: 312 [2019-12-18 19:40:10,390 INFO L226 Difference]: Without dead ends: 230 [2019-12-18 19:40:10,391 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-12-18 19:40:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2019-12-18 19:40:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-12-18 19:40:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 555 transitions. [2019-12-18 19:40:10,399 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 555 transitions. Word has length 19 [2019-12-18 19:40:10,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:40:10,399 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 555 transitions. [2019-12-18 19:40:10,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:40:10,400 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 555 transitions. [2019-12-18 19:40:10,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-18 19:40:10,401 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:40:10,401 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:40:10,401 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:40:10,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:40:10,402 INFO L82 PathProgramCache]: Analyzing trace with hash 926221059, now seen corresponding path program 3 times [2019-12-18 19:40:10,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:40:10,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451268859] [2019-12-18 19:40:10,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:40:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:40:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:40:10,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451268859] [2019-12-18 19:40:10,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:40:10,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:40:10,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560521918] [2019-12-18 19:40:10,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:40:10,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:40:10,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:40:10,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,460 INFO L87 Difference]: Start difference. First operand 226 states and 555 transitions. Second operand 3 states. [2019-12-18 19:40:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:40:10,493 INFO L93 Difference]: Finished difference Result 210 states and 499 transitions. [2019-12-18 19:40:10,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:40:10,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-18 19:40:10,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:40:10,496 INFO L225 Difference]: With dead ends: 210 [2019-12-18 19:40:10,496 INFO L226 Difference]: Without dead ends: 210 [2019-12-18 19:40:10,496 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2019-12-18 19:40:10,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2019-12-18 19:40:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-12-18 19:40:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 499 transitions. [2019-12-18 19:40:10,503 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 499 transitions. Word has length 19 [2019-12-18 19:40:10,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:40:10,503 INFO L462 AbstractCegarLoop]: Abstraction has 210 states and 499 transitions. [2019-12-18 19:40:10,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:40:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 499 transitions. [2019-12-18 19:40:10,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-18 19:40:10,504 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:40:10,505 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:40:10,505 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:40:10,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:40:10,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1185214475, now seen corresponding path program 4 times [2019-12-18 19:40:10,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:40:10,506 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146909310] [2019-12-18 19:40:10,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:40:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:40:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:40:10,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146909310] [2019-12-18 19:40:10,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:40:10,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:40:10,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117368349] [2019-12-18 19:40:10,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:40:10,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:40:10,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:40:10,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,538 INFO L87 Difference]: Start difference. First operand 210 states and 499 transitions. Second operand 3 states. [2019-12-18 19:40:10,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:40:10,559 INFO L93 Difference]: Finished difference Result 160 states and 390 transitions. [2019-12-18 19:40:10,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:40:10,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-18 19:40:10,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:40:10,560 INFO L225 Difference]: With dead ends: 160 [2019-12-18 19:40:10,560 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 19:40:10,561 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:40:10,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 19:40:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 19:40:10,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 19:40:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 19:40:10,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-18 19:40:10,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:40:10,562 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 19:40:10,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:40:10,562 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 19:40:10,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 19:40:10,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:40:10 BasicIcfg [2019-12-18 19:40:10,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:40:10,568 INFO L168 Benchmark]: Toolchain (without parser) took 3617.49 ms. Allocated memory was 145.8 MB in the beginning and 247.5 MB in the end (delta: 101.7 MB). Free memory was 102.5 MB in the beginning and 181.8 MB in the end (delta: -79.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-12-18 19:40:10,569 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 19:40:10,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.85 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 102.1 MB in the beginning and 161.3 MB in the end (delta: -59.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-18 19:40:10,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 201.9 MB. Free memory was 161.3 MB in the beginning and 159.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 19:40:10,571 INFO L168 Benchmark]: Boogie Preprocessor took 36.51 ms. Allocated memory is still 201.9 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 19:40:10,572 INFO L168 Benchmark]: RCFGBuilder took 449.11 ms. Allocated memory is still 201.9 MB. Free memory was 158.0 MB in the beginning and 135.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-12-18 19:40:10,573 INFO L168 Benchmark]: TraceAbstraction took 2403.47 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 135.7 MB in the beginning and 181.8 MB in the end (delta: -46.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 19:40:10,577 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.85 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 102.1 MB in the beginning and 161.3 MB in the end (delta: -59.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 201.9 MB. Free memory was 161.3 MB in the beginning and 159.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.51 ms. Allocated memory is still 201.9 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.11 ms. Allocated memory is still 201.9 MB. Free memory was 158.0 MB in the beginning and 135.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2403.47 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 135.7 MB in the beginning and 181.8 MB in the end (delta: -46.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 72 ProgramPointsBefore, 45 ProgramPointsAfterwards, 87 TransitionsBefore, 59 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 689 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4337 CheckedPairsTotal, 38 TotalNumberOfCompositions - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 2 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 367 SDtfs, 133 SDslu, 141 SDs, 0 SdLazy, 82 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...